{
  "alt": "Horizontal stacked bars for twelve birthweight classes from the lightest at the top to the heaviest, then weight not stated. The withheld segment fills most of the bar for the lightest and heaviest classes and the not-stated class, shrinks through the lighter classes, is absent from the five middle classes and is small for the class just below the heaviest.",
  "caption": "The withheld segment is long at the top and bottom of the ladder and absent in the middle. Each bar is the cells of one class, summing to the whole; a withheld cell holds fewer than {fact:supp_floor} births and is not a zero, and the figure counts cells and reconstructs none.",
  "data": [
    {
      "birthweight": "499 g or less",
      "cells": 2885,
      "class_cells": 4046,
      "max_share": 60,
      "published_births": 17300,
      "share": 71.3,
      "status": "Withheld (1 to 9 births)"
    },
    {
      "birthweight": "499 g or less",
      "cells": 350,
      "class_cells": 4046,
      "max_share": 60,
      "published_births": 17300,
      "share": 8.65,
      "status": "Published zero"
    },
    {
      "birthweight": "499 g or less",
      "cells": 811,
      "class_cells": 4046,
      "max_share": 60,
      "published_births": 17300,
      "share": 20.04,
      "status": "Published, 10 or more births"
    },
    {
      "birthweight": "500 to 999 g",
      "cells": 1474,
      "class_cells": 4046,
      "max_share": 12.4,
      "published_births": 93575,
      "share": 36.43,
      "status": "Withheld (1 to 9 births)"
    },
    {
      "birthweight": "500 to 999 g",
      "cells": 16,
      "class_cells": 4046,
      "max_share": 12.4,
      "published_births": 93575,
      "share": 0.4,
      "status": "Published zero"
    },
    {
      "birthweight": "500 to 999 g",
      "cells": 2556,
      "class_cells": 4046,
      "max_share": 12.4,
      "published_births": 93575,
      "share": 63.17,
      "status": "Published, 10 or more births"
    },
    {
      "birthweight": "1,000 to 1,499 g",
      "cells": 741,
      "class_cells": 4046,
      "max_share": 4.4,
      "published_births": 144348,
      "share": 18.31,
      "status": "Withheld (1 to 9 births)"
    },
    {
      "birthweight": "1,000 to 1,499 g",
      "cells": 0,
      "class_cells": 4046,
      "max_share": 4.4,
      "published_births": 144348,
      "share": 0,
      "status": "Published zero"
    },
    {
      "birthweight": "1,000 to 1,499 g",
      "cells": 3305,
      "class_cells": 4046,
      "max_share": 4.4,
      "published_births": 144348,
      "share": 81.69,
      "status": "Published, 10 or more births"
    },
    {
      "birthweight": "1,500 to 1,999 g",
      "cells": 43,
      "class_cells": 4046,
      "max_share": 0.1,
      "published_births": 334713,
      "share": 1.06,
      "status": "Withheld (1 to 9 births)"
    },
    {
      "birthweight": "1,500 to 1,999 g",
      "cells": 0,
      "class_cells": 4046,
      "max_share": 0.1,
      "published_births": 334713,
      "share": 0,
      "status": "Published zero"
    },
    {
      "birthweight": "1,500 to 1,999 g",
      "cells": 4003,
      "class_cells": 4046,
      "max_share": 0.1,
      "published_births": 334713,
      "share": 98.94,
      "status": "Published, 10 or more births"
    },
    {
      "birthweight": "2,000 to 2,499 g",
      "cells": 0,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 1107825,
      "share": 0,
      "status": "Withheld (1 to 9 births)"
    },
    {
      "birthweight": "2,000 to 2,499 g",
      "cells": 0,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 1107825,
      "share": 0,
      "status": "Published zero"
    },
    {
      "birthweight": "2,000 to 2,499 g",
      "cells": 4046,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 1107825,
      "share": 100,
      "status": "Published, 10 or more births"
    },
    {
      "birthweight": "2,500 to 2,999 g",
      "cells": 0,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 3979246,
      "share": 0,
      "status": "Withheld (1 to 9 births)"
    },
    {
      "birthweight": "2,500 to 2,999 g",
      "cells": 0,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 3979246,
      "share": 0,
      "status": "Published zero"
    },
    {
      "birthweight": "2,500 to 2,999 g",
      "cells": 4046,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 3979246,
      "share": 100,
      "status": "Published, 10 or more births"
    },
    {
      "birthweight": "3,000 to 3,499 g",
      "cells": 0,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 7991060,
      "share": 0,
      "status": "Withheld (1 to 9 births)"
    },
    {
      "birthweight": "3,000 to 3,499 g",
      "cells": 0,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 7991060,
      "share": 0,
      "status": "Published zero"
    },
    {
      "birthweight": "3,000 to 3,499 g",
      "cells": 4046,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 7991060,
      "share": 100,
      "status": "Published, 10 or more births"
    },
    {
      "birthweight": "3,500 to 3,999 g",
      "cells": 0,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 5263258,
      "share": 0,
      "status": "Withheld (1 to 9 births)"
    },
    {
      "birthweight": "3,500 to 3,999 g",
      "cells": 0,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 5263258,
      "share": 0,
      "status": "Published zero"
    },
    {
      "birthweight": "3,500 to 3,999 g",
      "cells": 4046,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 5263258,
      "share": 100,
      "status": "Published, 10 or more births"
    },
    {
      "birthweight": "4,000 to 4,499 g",
      "cells": 0,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 1289498,
      "share": 0,
      "status": "Withheld (1 to 9 births)"
    },
    {
      "birthweight": "4,000 to 4,499 g",
      "cells": 0,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 1289498,
      "share": 0,
      "status": "Published zero"
    },
    {
      "birthweight": "4,000 to 4,499 g",
      "cells": 4046,
      "class_cells": 4046,
      "max_share": 0,
      "published_births": 1289498,
      "share": 100,
      "status": "Published, 10 or more births"
    },
    {
      "birthweight": "4,500 to 4,999 g",
      "cells": 334,
      "class_cells": 4046,
      "max_share": 1.8,
      "published_births": 167374,
      "share": 8.26,
      "status": "Withheld (1 to 9 births)"
    },
    {
      "birthweight": "4,500 to 4,999 g",
      "cells": 0,
      "class_cells": 4046,
      "max_share": 1.8,
      "published_births": 167374,
      "share": 0,
      "status": "Published zero"
    },
    {
      "birthweight": "4,500 to 4,999 g",
      "cells": 3712,
      "class_cells": 4046,
      "max_share": 1.8,
      "published_births": 167374,
      "share": 91.74,
      "status": "Published, 10 or more births"
    },
    {
      "birthweight": "5,000 g or more",
      "cells": 3141,
      "class_cells": 4046,
      "max_share": 76.1,
      "published_births": 8863,
      "share": 77.63,
      "status": "Withheld (1 to 9 births)"
    },
    {
      "birthweight": "5,000 g or more",
      "cells": 441,
      "class_cells": 4046,
      "max_share": 76.1,
      "published_births": 8863,
      "share": 10.9,
      "status": "Published zero"
    },
    {
      "birthweight": "5,000 g or more",
      "cells": 464,
      "class_cells": 4046,
      "max_share": 76.1,
      "published_births": 8863,
      "share": 11.47,
      "status": "Published, 10 or more births"
    },
    {
      "birthweight": "Weight not stated",
      "cells": 2632,
      "class_cells": 4046,
      "max_share": 71.7,
      "published_births": 9365,
      "share": 65.05,
      "status": "Withheld (1 to 9 births)"
    },
    {
      "birthweight": "Weight not stated",
      "cells": 1100,
      "class_cells": 4046,
      "max_share": 71.7,
      "published_births": 9365,
      "share": 27.19,
      "status": "Published zero"
    },
    {
      "birthweight": "Weight not stated",
      "cells": 314,
      "class_cells": 4046,
      "max_share": 71.7,
      "published_births": 9365,
      "share": 7.76,
      "status": "Published, 10 or more births"
    }
  ],
  "id": "wonder_suppression_by_birthweight",
  "notes": [
    "WONDER withholds a cell with fewer than {fact:supp_floor} births, so a withheld cell holds at most {fact:supp_cell_max}. The counts here are of cells only; nothing is derived for a withheld cell, and the county totals are not used.",
    "The bound in the table is the births in the published cells of a class plus {fact:supp_cell_max} for each withheld cell, which is the largest share of the class's births that the withheld cells could hold.",
    "Cells are for the {fact:supp_n_counties} counties that WONDER names in every year, which have at least {fact:wonder_county_min} residents; pooled rows for other counties are not cells of a county."
  ],
  "source": "CDC WONDER natality, county by birthweight class, 2018-2024; full counts of cells",
  "spec": {
    "category": "birthweight",
    "categoryLabel": "Birthweight class",
    "colors": {
      "Published zero": "muted",
      "Published, 10 or more births": "accent",
      "Withheld (1 to 9 births)": "highlight"
    },
    "format": {
      "digits": 1
    },
    "group": "status",
    "normalize": true,
    "orientation": "h",
    "sort": "data",
    "stack": true,
    "value": "share",
    "valueLabel": "Share of county-year cells (%)"
  },
  "subtitle": "Share of county-year cells that are withheld, published as zero or published with at least {fact:supp_floor} births, by birthweight class, {fact:supp_n_counties} counties named in every year, 2018 to 2024, percent",
  "table": {
    "columns": [
      {
        "key": "birthweight",
        "label": "Birthweight class"
      },
      {
        "key": "status",
        "label": "Cell status"
      },
      {
        "format": {
          "digits": 1
        },
        "key": "share",
        "label": "Share of cells (%)"
      },
      {
        "format": {
          "thousands": true
        },
        "key": "cells",
        "label": "Cells"
      },
      {
        "format": {
          "thousands": true
        },
        "key": "class_cells",
        "label": "Cells in the class"
      },
      {
        "format": {
          "thousands": true
        },
        "key": "published_births",
        "label": "Births in published cells of the class"
      },
      {
        "format": {
          "digits": 1
        },
        "key": "max_share",
        "label": "Largest share of the class's births in withheld cells (%)"
      }
    ]
  },
  "title": "WONDER withholds {fact:supp_light} of county-year cells in the lightest birthweight class and {fact:supp_heavy} in the heaviest, against {fact:supp_middle_share} in the five middle classes",
  "type": "bar",
  "width": "wide"
}