{
  "best_black": {
    "display": "78.2",
    "estimand": "90th percentile of county Black life expectancy, weighted by county population",
    "n": 1265,
    "nUnit": "counties",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "Black residents of the counties with both a white and a Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "years of life expectancy at birth",
    "value": 78.2398,
    "weights": "county total population"
  },
  "beta_diff": {
    "ci": [
      -0.16,
      0.36
    ],
    "ciLevel": 0.95,
    "display": "0.10",
    "estimand": "standardized coefficient on economic connectedness minus the coefficient on log median income, same regression, errors clustered on state",
    "n": 2933,
    "nUnit": "counties",
    "note": "",
    "period": "friendships among Facebook users in 2022; mobility for children born 1978 to 1983; ACS 2019 to 2023",
    "population": "counties with a Social Capital Atlas measure and an Opportunity Atlas mobility rank and ACS controls (Connecticut left out)",
    "source": "social-capital-atlas",
    "unit": "standard deviations of the county mobility rank per standard deviation of the measure",
    "value": 0.098807,
    "weights": "2018 county population (Social Capital Atlas)"
  },
  "black_share_covered": {
    "display": "98%",
    "estimand": "share of non-Hispanic Black residents living in counties with both race-specific estimates",
    "n": 3143,
    "nUnit": "counties",
    "note": "",
    "period": "County Health Rankings 2024 release (population estimates for 2022)",
    "population": "residents of the counties in County Health Rankings",
    "source": "chr",
    "unit": "percent of non-Hispanic Black residents",
    "value": 98.2009,
    "weights": "county population times its non-Hispanic Black share"
  },
  "bronx_p25": {
    "display": "39.9",
    "estimand": "population-weighted mean adult household income rank over the county's tracts",
    "n": 328,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised at the 25th percentile of the national income distribution in Bronx County",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 39.8847,
    "weights": "2010 census tract population"
  },
  "bronx_p75": {
    "display": "47.9",
    "estimand": "population-weighted mean adult household income rank over the county's tracts",
    "n": 328,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised at the 75th percentile of the national income distribution in Bronx County",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 47.8539,
    "weights": "2010 census tract population"
  },
  "civic_r": {
    "ci": [
      -0.01,
      0.14
    ],
    "ciLevel": 0.95,
    "display": "+0.06",
    "estimand": "population-weighted correlation of the county civic organizations with the county mobility rank, bootstrap interval over counties",
    "n": 2983,
    "nUnit": "counties",
    "note": "",
    "period": "friendships among Facebook users in 2022; mobility for children born 1978 to 1983",
    "population": "counties with a Social Capital Atlas measure and an Opportunity Atlas mobility rank",
    "source": "social-capital-atlas",
    "unit": "correlation coefficient",
    "value": 0.062432,
    "weights": "2018 county population (Social Capital Atlas)"
  },
  "conv_slope": {
    "ci": [
      0.66,
      0.72
    ],
    "ciLevel": 0.95,
    "display": "0.69",
    "estimand": "slope of the tract's 75th-percentile rank on its 25th-percentile rank, population-weighted, county-bootstrap interval",
    "n": 71924,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in families at the 25th and the 75th percentile of the national income distribution, in tracts where the Atlas estimates both",
    "source": "opportunity-atlas",
    "unit": "percentile points of the 75th-percentile family's rank per point of the 25th-percentile family's rank",
    "value": 0.687401,
    "weights": "2010 census tract population"
  },
  "conv_slope_county": {
    "ci": [
      0.6,
      0.82
    ],
    "ciLevel": 0.95,
    "display": "0.70",
    "estimand": "slope of the county mean 75th-percentile rank on the county mean 25th-percentile rank, weighted by 2010 population, state-bootstrap interval",
    "n": 1172,
    "nUnit": "counties",
    "note": "Averaging tracts within counties damps sampling noise in the tract estimates; the slope rises with the minimum number of tracts.",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "counties with at least 10 tracts in the premium sample",
    "source": "opportunity-atlas",
    "unit": "percentile points of the 75th-percentile family's rank per point of the 25th-percentile family's rank",
    "value": 0.701126,
    "weights": "2010 census tract population"
  },
  "conv_slope_county_big": {
    "ci": [
      0.69,
      0.91
    ],
    "ciLevel": 0.95,
    "display": "0.81",
    "estimand": "slope of the county mean 75th-percentile rank on the county mean 25th-percentile rank, weighted by 2010 population, state-bootstrap interval",
    "n": 148,
    "nUnit": "counties",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "counties with at least 100 tracts in the premium sample",
    "source": "opportunity-atlas",
    "unit": "percentile points of the 75th-percentile family's rank per point of the 25th-percentile family's rank",
    "value": 0.807916,
    "weights": "2010 census tract population"
  },
  "cook_gap": {
    "ci": [
      9.7,
      10.2
    ],
    "ciLevel": 0.95,
    "display": "9.9",
    "estimand": "white minus Black county life expectancy; the interval combines County Health Rankings' two 95% intervals assuming independence",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "residents of Cook County, Illinois",
    "source": "chr",
    "unit": "years of life expectancy at birth, white minus Black",
    "value": 9.94,
    "weights": "none (one county)"
  },
  "dc_gap": {
    "ci": [
      17,
      18.3
    ],
    "ciLevel": 0.95,
    "display": "17.7",
    "estimand": "white minus Black county life expectancy; the interval combines County Health Rankings' two 95% intervals assuming independence",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "residents of the District of Columbia",
    "source": "chr",
    "unit": "years of life expectancy at birth, white minus Black",
    "value": 17.6825,
    "weights": "none (one county)"
  },
  "ec_beta": {
    "ci": [
      0.42,
      0.7
    ],
    "ciLevel": 0.95,
    "display": "0.56",
    "estimand": "standardized coefficient on economic connectedness in a weighted regression with controls for log median income, percent Black, percent with a college degree and percent below poverty, errors clustered on state",
    "n": 2933,
    "nUnit": "counties",
    "note": "",
    "period": "friendships among Facebook users in 2022; mobility for children born 1978 to 1983; ACS 2019 to 2023",
    "population": "counties with a Social Capital Atlas measure and an Opportunity Atlas mobility rank and ACS controls (Connecticut left out)",
    "source": "social-capital-atlas",
    "unit": "standard deviations of the county mobility rank per standard deviation of the measure",
    "value": 0.563114,
    "weights": "2018 county population (Social Capital Atlas)"
  },
  "ec_n": {
    "display": "2,942",
    "estimand": "count of counties with economic connectedness and a mobility rank",
    "note": "",
    "period": "friendships among Facebook users in 2022; mobility for children born 1978 to 1983",
    "population": "counties with a Social Capital Atlas measure and an Opportunity Atlas mobility rank",
    "source": "social-capital-atlas",
    "unit": "counties",
    "value": 2942,
    "weights": "none (full count)"
  },
  "ec_poor": {
    "ci": [
      0.56,
      0.58
    ],
    "ciLevel": 0.95,
    "display": "0.57",
    "estimand": "population-weighted mean of ZIP economic connectedness, bootstrap interval over counties",
    "n": 1889,
    "nUnit": "ZIP code areas",
    "note": "",
    "period": "friendships among Facebook users in 2022; income ACS 2019 to 2023",
    "population": "ZIP code areas (ZCTAs) in the lowest tenth of median household income",
    "source": "social-capital-atlas",
    "unit": "economic connectedness (ratio)",
    "value": 0.570209,
    "weights": "2018 ZIP population (Social Capital Atlas)"
  },
  "ec_r": {
    "ci": [
      0.64,
      0.74
    ],
    "ciLevel": 0.95,
    "display": "+0.69",
    "estimand": "population-weighted correlation of the county economic connectedness with the county mobility rank, bootstrap interval over counties",
    "n": 2942,
    "nUnit": "counties",
    "note": "",
    "period": "friendships among Facebook users in 2022; mobility for children born 1978 to 1983",
    "population": "counties with a Social Capital Atlas measure and an Opportunity Atlas mobility rank",
    "source": "social-capital-atlas",
    "unit": "correlation coefficient",
    "value": 0.692661,
    "weights": "2018 county population (Social Capital Atlas)"
  },
  "ec_rich": {
    "ci": [
      1.16,
      1.21
    ],
    "ciLevel": 0.95,
    "display": "1.19",
    "estimand": "population-weighted mean of ZIP economic connectedness, bootstrap interval over counties",
    "n": 1890,
    "nUnit": "ZIP code areas",
    "note": "",
    "period": "friendships among Facebook users in 2022; income ACS 2019 to 2023",
    "population": "ZIP code areas (ZCTAs) in the highest tenth of median household income",
    "source": "social-capital-atlas",
    "unit": "economic connectedness (ratio)",
    "value": 1.1866,
    "weights": "2018 ZIP population (Social Capital Atlas)"
  },
  "gap_high_third": {
    "ci": [
      10.8,
      12.1
    ],
    "ciLevel": 0.95,
    "display": "11.6",
    "estimand": "mean of the county white minus Black gap in adult income rank within a third of counties (equal numbers of counties, ranked by the county mean white rank), weighted by 2010 population summed to the county, state-bootstrap interval",
    "n": 112,
    "nUnit": "counties",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in low-income families (parents at the 25th percentile of the national income distribution) in counties with at least 20 tracts that have both estimates, in the third of those counties with the highest mean rank for white children",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, white minus Black",
    "value": 11.6099,
    "weights": "2010 census tract population"
  },
  "gap_high_third_tract": {
    "ci": [
      14.4,
      15.2
    ],
    "ciLevel": 0.95,
    "display": "14.8",
    "estimand": "mean white minus Black gap in adult income rank within a third of tracts (equal numbers of tracts, ranked by the white rank), population-weighted mean over tracts (2010 tract population as the weight), county-bootstrap interval",
    "n": 10333,
    "nUnit": "tracts",
    "note": "Sorting on the noisy white rank itself builds part of this contrast into the thirds.",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in low-income families (parents at the 25th percentile of the national income distribution) in tracts where the Atlas estimates both white and Black children in the third of tracts with the highest mean rank for white children",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, white minus Black",
    "value": 14.797,
    "weights": "2010 census tract population"
  },
  "gap_hisp": {
    "ci": [
      2.3,
      2.9
    ],
    "ciLevel": 0.95,
    "display": "2.6",
    "estimand": "mean over tracts of the white minus Hispanic gap in adult income rank, population-weighted mean over tracts (2010 tract population as the weight), county-bootstrap interval",
    "n": 35579,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in low-income families (parents at the 25th percentile of the national income distribution) in tracts where the Atlas estimates both white and Hispanic children",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, white minus Hispanic",
    "value": 2.61209,
    "weights": "2010 census tract population"
  },
  "gap_low_third": {
    "ci": [
      8.1,
      8.7
    ],
    "ciLevel": 0.95,
    "display": "8.4",
    "estimand": "mean of the county white minus Black gap in adult income rank within a third of counties (equal numbers of counties, ranked by the county mean white rank), weighted by 2010 population summed to the county, state-bootstrap interval",
    "n": 112,
    "nUnit": "counties",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in low-income families (parents at the 25th percentile of the national income distribution) in counties with at least 20 tracts that have both estimates, in the third of those counties with the lowest mean rank for white children",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, white minus Black",
    "value": 8.3894,
    "weights": "2010 census tract population"
  },
  "gap_low_third_tract": {
    "ci": [
      5.4,
      5.8
    ],
    "ciLevel": 0.95,
    "display": "5.6",
    "estimand": "mean white minus Black gap in adult income rank within a third of tracts (equal numbers of tracts, ranked by the white rank), population-weighted mean over tracts (2010 tract population as the weight), county-bootstrap interval",
    "n": 10332,
    "nUnit": "tracts",
    "note": "Sorting on the noisy white rank itself builds part of this contrast into the thirds.",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in low-income families (parents at the 25th percentile of the national income distribution) in tracts where the Atlas estimates both white and Black children in the third of tracts with the lowest mean rank for white children",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, white minus Black",
    "value": 5.5941,
    "weights": "2010 census tract population"
  },
  "gap_min_big": {
    "ci": [
      0.7,
      1.5
    ],
    "ciLevel": 0.95,
    "display": "1.1",
    "estimand": "white minus Black county life expectancy; the interval combines County Health Rankings' two 95% intervals assuming independence",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "residents of Broward County, FL, the county with the smallest gap among the most populous counties",
    "source": "chr",
    "unit": "years of life expectancy at birth, white minus Black",
    "value": 1.1,
    "weights": "none (one county)"
  },
  "inc_beta": {
    "ci": [
      0.26,
      0.67
    ],
    "ciLevel": 0.95,
    "display": "0.46",
    "estimand": "standardized coefficient on the log of median household income in a weighted regression with controls for log median income, percent Black, percent with a college degree and percent below poverty, errors clustered on state",
    "n": 2933,
    "nUnit": "counties",
    "note": "",
    "period": "friendships among Facebook users in 2022; mobility for children born 1978 to 1983; ACS 2019 to 2023",
    "population": "counties with a Social Capital Atlas measure and an Opportunity Atlas mobility rank and ACS controls (Connecticut left out)",
    "source": "social-capital-atlas",
    "unit": "standard deviations of the county mobility rank per standard deviation of the measure",
    "value": 0.464307,
    "weights": "2018 county population (Social Capital Atlas)"
  },
  "kfr_black": {
    "ci": [
      34.3,
      34.9
    ],
    "ciLevel": 0.95,
    "display": "34.6",
    "estimand": "mean adult household income rank, population-weighted mean over tracts (2010 tract population as the weight), county-bootstrap interval",
    "n": 30997,
    "nUnit": "tracts",
    "note": "Counting each tract once gives a similar mean.",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "Black children raised in low-income families (parents at the 25th percentile of the national income distribution), in tracts where the Atlas also estimates white children",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 34.5738,
    "weights": "2010 census tract population"
  },
  "kfr_dc": {
    "display": "34.9",
    "estimand": "county value from the Opportunity Atlas",
    "n": 1,
    "nUnit": "counties",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in low-income families in the District of Columbia, a single county that is left out of the ranking of states",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 34.8817,
    "weights": "none (one county)"
  },
  "kfr_gap": {
    "ci": [
      10,
      10.6
    ],
    "ciLevel": 0.95,
    "display": "10.3",
    "estimand": "mean over tracts of the white minus Black gap in adult income rank, population-weighted mean over tracts (2010 tract population as the weight), county-bootstrap interval",
    "n": 30997,
    "nUnit": "tracts",
    "note": "Counting each tract once gives a similar gap.",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in low-income families (parents at the 25th percentile of the national income distribution) in tracts where the Atlas estimates both white and Black children",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, white minus Black",
    "value": 10.3106,
    "weights": "2010 census tract population"
  },
  "kfr_mean": {
    "display": "41.3",
    "estimand": "population-weighted mean of the county values",
    "n": 3136,
    "nUnit": "counties",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "counties with an estimate for children raised at the 25th percentile of the national income distribution",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 41.332,
    "weights": "county population in County Health Rankings 2024"
  },
  "kfr_p5": {
    "display": "34.9",
    "estimand": "population-weighted 5th percentile of the county values",
    "n": 3136,
    "nUnit": "counties",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "counties with an estimate for children raised at the 25th percentile of the national income distribution",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 34.864,
    "weights": "county population in County Health Rankings 2024"
  },
  "kfr_p95": {
    "display": "48.4",
    "estimand": "population-weighted 95th percentile of the county values",
    "n": 3136,
    "nUnit": "counties",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "counties with an estimate for children raised at the 25th percentile of the national income distribution",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 48.3643,
    "weights": "county population in County Health Rankings 2024"
  },
  "kfr_state_high": {
    "display": "53.3",
    "estimand": "state mean of the county values, weighted by county population",
    "n": 53,
    "nUnit": "counties",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "counties with an estimate for children raised at the 25th percentile of the national income distribution in the state with the highest mean, among the 50 states (DC left out)",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 53.2571,
    "weights": "county population in County Health Rankings 2024"
  },
  "kfr_state_low": {
    "display": "35.9",
    "estimand": "state mean of the county values, weighted by county population",
    "n": 46,
    "nUnit": "counties",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "counties with an estimate for children raised at the 25th percentile of the national income distribution in the state with the lowest mean, among the 50 states (DC left out)",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 35.9462,
    "weights": "county population in County Health Rankings 2024"
  },
  "kfr_white": {
    "ci": [
      44.5,
      45.3
    ],
    "ciLevel": 0.95,
    "display": "44.9",
    "estimand": "mean adult household income rank, population-weighted mean over tracts (2010 tract population as the weight), county-bootstrap interval",
    "n": 30997,
    "nUnit": "tracts",
    "note": "Counting each tract once gives a similar mean.",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "white children raised in low-income families (parents at the 25th percentile of the national income distribution), in tracts where the Atlas also estimates Black children",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 44.8843,
    "weights": "2010 census tract population"
  },
  "le_b": {
    "ci": [
      73.4,
      74.1
    ],
    "ciLevel": 0.95,
    "display": "73.7",
    "estimand": "mean of county life expectancy, weighted by county population, bootstrap interval over counties",
    "n": 1265,
    "nUnit": "counties",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "Black residents of the counties with both a white and a Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "years of life expectancy at birth",
    "value": 73.717,
    "weights": "county total population"
  },
  "le_gap": {
    "ci": [
      4,
      4.8
    ],
    "ciLevel": 0.95,
    "display": "4.4",
    "estimand": "mean of the county non-Hispanic white minus non-Hispanic Black gap in life expectancy, weighted by county population, bootstrap interval over counties",
    "n": 1265,
    "nUnit": "counties",
    "note": "County Health Rankings publishes a race-specific life expectancy only where deaths are numerous enough. These 1,265 counties hold 98 percent of the non-Hispanic Black residents of all counties in the file. Interval: bootstrap over counties.",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "counties with both a non-Hispanic white and a non-Hispanic Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "years of life expectancy at birth, non-Hispanic white minus non-Hispanic Black",
    "value": 4.41629,
    "weights": "county total population"
  },
  "le_gap_unweighted": {
    "ci": [
      3.3,
      3.7
    ],
    "ciLevel": 0.95,
    "display": "3.5",
    "estimand": "mean of the county non-Hispanic white minus non-Hispanic Black gap in life expectancy, each county counted once, bootstrap interval over counties",
    "n": 1265,
    "nUnit": "counties",
    "note": "County Health Rankings publishes a race-specific life expectancy only where deaths are numerous enough. These 1,265 counties hold 98 percent of the non-Hispanic Black residents of all counties in the file. Interval: bootstrap over counties.",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "counties with both a non-Hispanic white and a non-Hispanic Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "years of life expectancy at birth, non-Hispanic white minus non-Hispanic Black",
    "value": 3.51732,
    "weights": "none (each county counts once)"
  },
  "le_w": {
    "ci": [
      77.8,
      78.4
    ],
    "ciLevel": 0.95,
    "display": "78.1",
    "estimand": "mean of county life expectancy, weighted by county population, bootstrap interval over counties",
    "n": 1265,
    "nUnit": "counties",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "white residents of the counties with both a white and a Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "years of life expectancy at birth",
    "value": 78.1333,
    "weights": "county total population"
  },
  "lead_asian": {
    "ci": [
      8.9,
      9.8
    ],
    "ciLevel": 0.95,
    "display": "9.4",
    "estimand": "mean over tracts of the Asian minus white gap in adult income rank, population-weighted mean over tracts (2010 tract population as the weight), county-bootstrap interval",
    "n": 15078,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in low-income families (parents at the 25th percentile of the national income distribution) in tracts where the Atlas estimates both white and Asian children",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, Asian minus white",
    "value": 9.37293,
    "weights": "2010 census tract population"
  },
  "m25": {
    "ci": [
      42.9,
      43.5
    ],
    "ciLevel": 0.95,
    "display": "43.2",
    "estimand": "mean adult household income rank, population-weighted mean over tracts (2010 tract population as the weight), county-bootstrap interval",
    "n": 71924,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised at the 25th percentile of the national income distribution, races pooled",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 43.2101,
    "weights": "2010 census tract population"
  },
  "m75": {
    "ci": [
      56.4,
      57.2
    ],
    "ciLevel": 0.95,
    "display": "56.8",
    "estimand": "mean adult household income rank, population-weighted mean over tracts (2010 tract population as the weight), county-bootstrap interval",
    "n": 71924,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised at the 75th percentile of the national income distribution, races pooled",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 56.7966,
    "weights": "2010 census tract population"
  },
  "median_pop_all": {
    "display": "82,911",
    "estimand": "median of county total population",
    "n": 1265,
    "nUnit": "counties",
    "note": "",
    "period": "county population in County Health Rankings 2024",
    "population": "residents of all the counties in the sample",
    "source": "chr",
    "unit": "people",
    "value": 82911,
    "weights": "none (median over counties)"
  },
  "min_tracts_county": {
    "display": "100",
    "estimand": "minimum number of tracts with both estimates for a county to be ranked",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "counties ranked on the premium",
    "source": "opportunity-atlas",
    "unit": "tracts",
    "value": 100,
    "weights": "none (inclusion rule)"
  },
  "min_tracts_gap": {
    "display": "20",
    "estimand": "minimum number of tracts with both estimates for a county to enter the county version",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "counties in the county version of the comparison",
    "source": "opportunity-atlas",
    "unit": "tracts",
    "value": 20,
    "weights": "none (inclusion rule)"
  },
  "min_tracts_slope": {
    "display": "10",
    "estimand": "minimum number of tracts with both estimates for a county to enter the slope",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "counties in the county-level premium slope",
    "source": "opportunity-atlas",
    "unit": "tracts",
    "value": 10,
    "weights": "none (inclusion rule)"
  },
  "n_clear_gap": {
    "display": "677",
    "estimand": "count of counties where the 95% interval for white life expectancy lies entirely above the interval for Black life expectancy",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "counties with both a white and a Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "counties",
    "value": 677,
    "weights": "none (full count)"
  },
  "n_clear_reversal": {
    "display": "9",
    "estimand": "count of counties where the 95% interval for Black life expectancy lies entirely above the interval for white life expectancy",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "counties with both a white and a Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "counties",
    "value": 9,
    "weights": "none (full count)"
  },
  "n_counties_nodata": {
    "display": "5",
    "estimand": "count of drawn counties with no Opportunity Atlas estimate",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "counties and county equivalents on the map (Puerto Rico not drawn)",
    "source": "opportunity-atlas",
    "unit": "counties",
    "value": 5,
    "weights": "none (full count)"
  },
  "n_dumbbell": {
    "display": "20",
    "estimand": "number of counties drawn in the dumbbell figure",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "most populous counties in the life-expectancy sample",
    "source": "chr",
    "unit": "counties",
    "value": 20,
    "weights": "none (rule)"
  },
  "n_gap_counties": {
    "display": "336",
    "estimand": "count of counties in the county version of the comparison",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in low-income families (parents at the 25th percentile of the national income distribution) in counties with at least 20 tracts that have both estimates",
    "source": "opportunity-atlas",
    "unit": "counties",
    "value": 336,
    "weights": "none (full count)"
  },
  "n_le_cty": {
    "display": "1,265",
    "estimand": "count of counties with both estimates",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "counties with both a non-Hispanic white and a non-Hispanic Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "counties",
    "value": 1265,
    "weights": "none (full count)"
  },
  "n_outside_lad": {
    "display": "35",
    "estimand": "count of tracts outside the plotted range of the same-tract scatter",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in low-income families (parents at the 25th percentile of the national income distribution) in tracts where the Atlas estimates both white and Black children",
    "source": "opportunity-atlas",
    "unit": "tracts",
    "value": 35,
    "weights": "none (full count)"
  },
  "n_outside_prem": {
    "display": "15",
    "estimand": "count of tracts outside the plotted range of the premium scatter",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in families at the 25th and the 75th percentile of the national income distribution, in tracts where the Atlas estimates both",
    "source": "opportunity-atlas",
    "unit": "tracts",
    "value": 15,
    "weights": "none (full count)"
  },
  "n_pm_cty": {
    "display": "1,242",
    "estimand": "count of counties in the premature death comparison",
    "note": "",
    "period": "deaths before age 75 in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "counties with both a white and a Black life expectancy in County Health Rankings that also report both premature death rates",
    "source": "chr",
    "unit": "counties",
    "value": 1242,
    "weights": "none (full count)"
  },
  "n_prem_counties": {
    "display": "148",
    "estimand": "count of counties with the minimum number of tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "counties with enough tracts to rank on the premium",
    "source": "opportunity-atlas",
    "unit": "counties",
    "value": 148,
    "weights": "none (full count)"
  },
  "n_prem_lowest": {
    "display": "8",
    "estimand": "number of counties with the smallest premiums examined for their location",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "counties ranked on the premium",
    "source": "opportunity-atlas",
    "unit": "counties",
    "value": 8,
    "weights": "none (rule)"
  },
  "n_prem_tracts": {
    "display": "71,924",
    "estimand": "count of tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "2010 census tracts with a mean adult income rank for both parental income levels and a recorded 2010 population",
    "source": "opportunity-atlas",
    "unit": "tracts",
    "value": 71924,
    "weights": "none (full count)"
  },
  "n_reversal": {
    "display": "140",
    "estimand": "count of counties where Black life expectancy is higher than white",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "counties with both a white and a Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "counties",
    "value": 140,
    "weights": "none (full count)"
  },
  "n_sample": {
    "display": "5,000",
    "estimand": "size of a random sample drawn with a fixed seed",
    "n": 30997,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "tracts drawn at random for each scatter plot",
    "source": "opportunity-atlas",
    "unit": "tracts",
    "value": 5000,
    "weights": "none (sample size)"
  },
  "n_tracts_lad": {
    "display": "30,997",
    "estimand": "count of tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "2010 census tracts with a mean adult income rank for white and for Black children from low-income families and a recorded 2010 population",
    "source": "opportunity-atlas",
    "unit": "tracts",
    "value": 30997,
    "weights": "none (full count)"
  },
  "n_zip": {
    "display": "18,896",
    "estimand": "count of ZIP codes (ZCTAs) in the comparison",
    "note": "",
    "period": "friendships among Facebook users in 2022",
    "population": "ZIP code areas (ZCTAs) with an economic connectedness value and a median household income",
    "source": "social-capital-atlas",
    "unit": "ZIP code areas",
    "value": 18896,
    "weights": "none (full count)"
  },
  "oa_causal_share": {
    "display": "60%",
    "estimand": "share of the variation across neighborhoods that experimental and quasi-experimental estimates attribute to causal effects of neighborhoods; reported in the abstract of Chetty, Friedman, Hendren, Jones and Porter (2018), copied from it and not computed in this build",
    "note": "A published estimate, not a result of this build.",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "census tracts of the United States, children born 1978 to 1983",
    "source": "opportunity-atlas",
    "unit": "percent of the variation in adult outcomes across neighborhoods",
    "value": 60,
    "weights": "none (reported estimate)"
  },
  "pct_below": {
    "ci": [
      91.9,
      93
    ],
    "ciLevel": 0.95,
    "display": "92.5%",
    "estimand": "share of tracts (each tract counted once) where white children reach a higher mean adult rank than Black children, county-bootstrap interval",
    "n": 30997,
    "nUnit": "tracts",
    "note": "Weighting tracts by 2010 population gives a similar share.",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in low-income families (parents at the 25th percentile of the national income distribution) in tracts where the Atlas estimates both white and Black children",
    "source": "opportunity-atlas",
    "unit": "percent of tracts in which the white children's mean rank is higher",
    "value": 92.4831,
    "weights": "none (each tract counts once)"
  },
  "pct_inter": {
    "ci": [
      13,
      19
    ],
    "ciLevel": 0.95,
    "display": "16%",
    "estimand": "share of the total variance attributed to the race-by-place interaction (the spread of the gap across counties), weighted by county population, bootstrap interval over counties",
    "n": 1265,
    "nUnit": "counties",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "county-by-race life expectancy (a white and a Black estimate for each county) in the counties with both a white and a Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "percent of the variance of county-by-race life expectancy",
    "value": 15.722,
    "weights": "county total population"
  },
  "pct_inter_unw": {
    "ci": [
      15,
      19
    ],
    "ciLevel": 0.95,
    "display": "17%",
    "estimand": "share of the total variance attributed to the race-by-place interaction (the spread of the gap across counties), each county counted once, bootstrap interval over counties",
    "n": 1265,
    "nUnit": "counties",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "county-by-race life expectancy (a white and a Black estimate for each county) in the counties with both a white and a Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "percent of the variance of county-by-race life expectancy",
    "value": 16.7737,
    "weights": "none (each county counts once)"
  },
  "pct_place": {
    "ci": [
      48,
      58
    ],
    "ciLevel": 0.95,
    "display": "53%",
    "estimand": "share of the total variance attributed to place (the spread of county averages), weighted by county population, bootstrap interval over counties",
    "n": 1265,
    "nUnit": "counties",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "county-by-race life expectancy (a white and a Black estimate for each county) in the counties with both a white and a Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "percent of the variance of county-by-race life expectancy",
    "value": 52.9692,
    "weights": "county total population"
  },
  "pct_place_unw": {
    "ci": [
      62,
      66
    ],
    "ciLevel": 0.95,
    "display": "64%",
    "estimand": "share of the total variance attributed to place (the spread of county averages), each county counted once, bootstrap interval over counties",
    "n": 1265,
    "nUnit": "counties",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "county-by-race life expectancy (a white and a Black estimate for each county) in the counties with both a white and a Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "percent of the variance of county-by-race life expectancy",
    "value": 64.1405,
    "weights": "none (each county counts once)"
  },
  "pct_race": {
    "ci": [
      26,
      37
    ],
    "ciLevel": 0.95,
    "display": "31%",
    "estimand": "share of the total variance attributed to race (the average white-Black gap), weighted by county population, bootstrap interval over counties",
    "n": 1265,
    "nUnit": "counties",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "county-by-race life expectancy (a white and a Black estimate for each county) in the counties with both a white and a Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "percent of the variance of county-by-race life expectancy",
    "value": 31.3088,
    "weights": "county total population"
  },
  "pct_race_unw": {
    "ci": [
      17,
      22
    ],
    "ciLevel": 0.95,
    "display": "19%",
    "estimand": "share of the total variance attributed to race (the average white-Black gap), each county counted once, bootstrap interval over counties",
    "n": 1265,
    "nUnit": "counties",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "county-by-race life expectancy (a white and a Black estimate for each county) in the counties with both a white and a Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "percent of the variance of county-by-race life expectancy",
    "value": 19.0859,
    "weights": "none (each county counts once)"
  },
  "pct_white_higher": {
    "display": "89%",
    "estimand": "share of counties where non-Hispanic white life expectancy exceeds non-Hispanic Black life expectancy",
    "n": 1265,
    "nUnit": "counties",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "counties with both a non-Hispanic white and a non-Hispanic Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "percent of counties",
    "value": 88.9328,
    "weights": "none (each county counts once)"
  },
  "pm_ratio": {
    "ci": [
      1.5,
      1.6
    ],
    "ciLevel": 0.95,
    "display": "1.5",
    "estimand": "ratio of two county-population-weighted means of the age-adjusted premature death rate per 100,000, bootstrap interval over counties",
    "n": 1242,
    "nUnit": "counties",
    "note": "",
    "period": "deaths before age 75 in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "counties with both a white and a Black life expectancy in County Health Rankings that also report both premature death rates",
    "source": "chr",
    "unit": "ratio of the non-Hispanic Black to the non-Hispanic white premature age-adjusted mortality rate (deaths under age 75 per 100,000)",
    "value": 1.54212,
    "weights": "county total population"
  },
  "pop_lad": {
    "display": "144.8 million",
    "estimand": "sum of 2010 census tract population",
    "note": "",
    "period": "2010 census",
    "population": "residents of the tracts in the same-tract comparison",
    "source": "opportunity-atlas",
    "unit": "people",
    "value": 144761030,
    "weights": "none (full count)"
  },
  "pop_lad_share": {
    "display": "46.9%",
    "estimand": "population of the same-tract comparison tracts as a share of the U.S. population",
    "note": "",
    "period": "2010 census",
    "population": "residents of the United States",
    "source": "opportunity-atlas",
    "unit": "percent of the 2010 U.S. population",
    "value": 46.8868,
    "weights": "none (full count)"
  },
  "prem": {
    "ci": [
      13.2,
      13.9
    ],
    "ciLevel": 0.95,
    "display": "13.6",
    "estimand": "mean over tracts of the 75th minus the 25th percentile family rank (the born-rich premium), population-weighted mean over tracts (2010 tract population as the weight), county-bootstrap interval",
    "n": 71924,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in families at the 25th and the 75th percentile of the national income distribution, in tracts where the Atlas estimates both",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, 75th-percentile parents minus 25th-percentile parents",
    "value": 13.5865,
    "weights": "2010 census tract population"
  },
  "prem_bot_val": {
    "display": "8.0",
    "estimand": "population-weighted mean of the tract premium within the county",
    "n": 328,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "the county with the smallest premium, among counties with at least 100 tracts",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, 75th-percentile parents minus 25th-percentile parents",
    "value": 7.96916,
    "weights": "2010 census tract population"
  },
  "prem_luzerne": {
    "display": "16.9",
    "estimand": "population-weighted mean of the tract premium within the county",
    "n": 103,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "Luzerne County, Pennsylvania, among counties with at least 100 tracts",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, 75th-percentile parents minus 25th-percentile parents",
    "value": 16.8864,
    "weights": "2010 census tract population"
  },
  "prem_p5": {
    "display": "5.8",
    "estimand": "population-weighted 5th percentile of the tract premium",
    "n": 71924,
    "nUnit": "tracts",
    "note": "Tract estimates carry sampling and privacy noise, which widens this spread.",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in families at the 25th and the 75th percentile of the national income distribution, in tracts where the Atlas estimates both",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, 75th-percentile parents minus 25th-percentile parents",
    "value": 5.81813,
    "weights": "2010 census tract population"
  },
  "prem_p95": {
    "display": "21.3",
    "estimand": "population-weighted 95th percentile of the tract premium",
    "n": 71924,
    "nUnit": "tracts",
    "note": "Tract estimates carry sampling and privacy noise, which widens this spread.",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in families at the 25th and the 75th percentile of the national income distribution, in tracts where the Atlas estimates both",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, 75th-percentile parents minus 25th-percentile parents",
    "value": 21.2921,
    "weights": "2010 census tract population"
  },
  "prem_sf": {
    "display": "8.9",
    "estimand": "population-weighted mean of the tract premium within the county",
    "n": 193,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "San Francisco County, California, among counties with at least 100 tracts",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, 75th-percentile parents minus 25th-percentile parents",
    "value": 8.87105,
    "weights": "2010 census tract population"
  },
  "prem_top_val": {
    "display": "17.3",
    "estimand": "population-weighted mean of the tract premium within the county",
    "n": 222,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "the county with the largest premium, among counties with at least 100 tracts",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood, 75th-percentile parents minus 25th-percentile parents",
    "value": 17.2556,
    "weights": "2010 census tract population"
  },
  "premature_age": {
    "display": "75",
    "estimand": "age limit in the definition of premature death (deaths before this age)",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "deaths counted as premature in County Health Rankings",
    "source": "chr",
    "unit": "years of age",
    "value": 75,
    "weights": "none (definition)"
  },
  "rev_median_pop": {
    "display": "59,039",
    "estimand": "median of county total population",
    "n": 140,
    "nUnit": "counties",
    "note": "",
    "period": "county population in County Health Rankings 2024",
    "population": "residents of the counties where the Black estimate is the higher",
    "source": "chr",
    "unit": "people",
    "value": 59039,
    "weights": "none (median over counties)"
  },
  "seg_beta_fe": {
    "ci": [
      0,
      0.12
    ],
    "ciLevel": 0.95,
    "display": "0.06",
    "estimand": "slope of the gap on the index in a county-population-weighted regression with state fixed effects, errors clustered on state",
    "n": 1260,
    "nUnit": "counties",
    "note": "",
    "period": "index from ACS 2018 to 2022; deaths in 2019 to 2021",
    "population": "counties with both a white and a Black life expectancy in County Health Rankings that also report the Black-white residential segregation index",
    "source": "chr",
    "unit": "years of life-expectancy gap per point of the dissimilarity index",
    "value": 0.0595605,
    "weights": "county total population"
  },
  "seg_n": {
    "display": "1,260",
    "estimand": "count of counties in the segregation comparison",
    "note": "",
    "period": "index from ACS 2018 to 2022; deaths in 2019 to 2021",
    "population": "counties with both a white and a Black life expectancy in County Health Rankings that also report the Black-white residential segregation index",
    "source": "chr",
    "unit": "counties",
    "value": 1260,
    "weights": "none (full count)"
  },
  "seg_r": {
    "ci": [
      0.14,
      0.45
    ],
    "ciLevel": 0.95,
    "display": "+0.30",
    "estimand": "population-weighted correlation of the white minus Black life-expectancy gap with the index of dissimilarity, bootstrap interval over counties",
    "n": 1260,
    "nUnit": "counties",
    "note": "",
    "period": "index from ACS 2018 to 2022; deaths in 2019 to 2021",
    "population": "counties with both a white and a Black life expectancy in County Health Rankings that also report the Black-white residential segregation index",
    "source": "chr",
    "unit": "correlation coefficient",
    "value": 0.302557,
    "weights": "county total population"
  },
  "sf_p25": {
    "display": "50.3",
    "estimand": "population-weighted mean adult household income rank over the county's tracts",
    "n": 193,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised at the 25th percentile of the national income distribution in San Francisco County",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 50.3164,
    "weights": "2010 census tract population"
  },
  "sf_p75": {
    "display": "59.2",
    "estimand": "population-weighted mean adult household income rank over the county's tracts",
    "n": 193,
    "nUnit": "tracts",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised at the 75th percentile of the national income distribution in San Francisco County",
    "source": "opportunity-atlas",
    "unit": "percentile points of national household income rank in adulthood",
    "value": 59.1874,
    "weights": "2010 census tract population"
  },
  "slope_bw": {
    "ci": [
      0.49,
      0.71
    ],
    "ciLevel": 0.95,
    "display": "0.60",
    "estimand": "slope of the county mean Black rank on the county mean white rank, weighted by 2010 population summed to the county, state-bootstrap interval",
    "n": 336,
    "nUnit": "counties",
    "note": "",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in low-income families (parents at the 25th percentile of the national income distribution) in counties with at least 20 tracts that have both estimates",
    "source": "opportunity-atlas",
    "unit": "percentile points of Black children's rank per point of white children's rank",
    "value": 0.598429,
    "weights": "2010 census tract population"
  },
  "slope_bw_tract": {
    "ci": [
      0.3,
      0.36
    ],
    "ciLevel": 0.95,
    "display": "0.33",
    "estimand": "slope of the tract's Black rank on its white rank, population-weighted, county-bootstrap interval",
    "n": 30997,
    "nUnit": "tracts",
    "note": "Sampling noise in the white rank pulls this slope toward zero by an amount the staged data cannot size; the county slope averages that noise away.",
    "period": "children born 1978 to 1983, household income measured in 2014 to 2015",
    "population": "children raised in low-income families (parents at the 25th percentile of the national income distribution) in tracts where the Atlas estimates both white and Black children",
    "source": "opportunity-atlas",
    "unit": "percentile points of Black children's rank per point of white children's rank",
    "value": 0.330195,
    "weights": "2010 census tract population"
  },
  "support_r": {
    "ci": [
      -0.33,
      -0.17
    ],
    "ciLevel": 0.95,
    "display": "−0.25",
    "estimand": "population-weighted correlation of the county support ratio with the county mobility rank, bootstrap interval over counties",
    "n": 2983,
    "nUnit": "counties",
    "note": "",
    "period": "friendships among Facebook users in 2022; mobility for children born 1978 to 1983",
    "population": "counties with a Social Capital Atlas measure and an Opportunity Atlas mobility rank",
    "source": "social-capital-atlas",
    "unit": "correlation coefficient",
    "value": -0.254276,
    "weights": "2018 county population (Social Capital Atlas)"
  },
  "vol_r": {
    "ci": [
      0.12,
      0.25
    ],
    "ciLevel": 0.95,
    "display": "+0.19",
    "estimand": "population-weighted correlation of the county volunteering rate with the county mobility rank, bootstrap interval over counties",
    "n": 2983,
    "nUnit": "counties",
    "note": "",
    "period": "friendships among Facebook users in 2022; mobility for children born 1978 to 1983",
    "population": "counties with a Social Capital Atlas measure and an Opportunity Atlas mobility rank",
    "source": "social-capital-atlas",
    "unit": "correlation coefficient",
    "value": 0.187083,
    "weights": "2018 county population (Social Capital Atlas)"
  },
  "worst_white": {
    "display": "74.4",
    "estimand": "10th percentile of county white life expectancy, weighted by county population",
    "n": 1265,
    "nUnit": "counties",
    "note": "",
    "period": "deaths in 2019 to 2021 (County Health Rankings 2024 release)",
    "population": "white residents of the counties with both a white and a Black life expectancy in County Health Rankings",
    "source": "chr",
    "unit": "years of life expectancy at birth",
    "value": 74.4133,
    "weights": "county total population"
  },
  "zip_r": {
    "ci": [
      0.81,
      0.83
    ],
    "ciLevel": 0.95,
    "display": "+0.82",
    "estimand": "population-weighted correlation of ZIP economic connectedness with the ZIP's percentile rank of median household income, bootstrap interval over counties",
    "n": 18896,
    "nUnit": "ZIP code areas",
    "note": "",
    "period": "friendships among Facebook users in 2022; income ACS 2019 to 2023",
    "population": "ZIP code areas (ZCTAs) with an economic connectedness value and a median household income",
    "source": "social-capital-atlas",
    "unit": "correlation coefficient",
    "value": 0.823399,
    "weights": "2018 ZIP population (Social Capital Atlas)"
  }
}