MATERNAL HEALTH / DATA INVESTIGATION
A pregnant woman resting
The Problem

Most U.S. maternal deaths are preventable.

The United States has the highest maternal mortality rate of any wealthy nation — and unlike its peers, that rate is getting worse. This project investigates why, where intervention would matter most, and what policy exports from top-performing countries could look like in practice.

84%
of U.S. maternal deaths are classified as preventable.
NEJM · NIH / PubMed
4.5×
Black women die at 4.5× the rate of Asian women — the largest racial gap in any high-income nation.
CDC NCHS · 2021
+56%
increase in maternal mortality in states with abortion bans following the Dobbs decision.
GEPI · Kaiser Family Foundation
−38%
the opposite direction peer developed nations moved over the same period.
OECD · World Bank
If the U.S. matched Norway's maternal mortality rate, roughly 9 out of every 10 American mothers who die each year would live. Back-of-envelope · OECD 2020 · CDC 2023
01 · Purpose

Why this project exists.

Maternal mortality is one of the only headline health indicators where the U.S. has gone backwards while every comparable country has improved. Our goal is to make the scale of that reversal unignorable — and to trace it to specific, fixable causes.

We're building a data-first investigation that (a) examines regional and racial disparities in maternal death, (b) identifies the leading causes and how they've shifted, (c) benchmarks U.S. performance against top-performing countries to surface transferable policy, and (d) investigates why U.S. rates continue to rise while peer countries' fall.

02 · Assumptions

What we're taking as given.

The data sources we rely on — CDC NCHS, the World Bank, OECD, and peer-reviewed work out of NEJM and NIH — each involve methodology choices. These are the priors we're operating under:

Definition

We use the WHO definition of a maternal death: a death during pregnancy or within 42 days of its end from pregnancy-related causes.

Preventability

We accept the CDC's Maternal Mortality Review Committees' standard that a death is "preventable" if reasonable changes by patient, provider, facility, system, or community could have averted it.

Comparability

Cross-country comparisons use OECD harmonized rates. U.S. state and county-level numbers may be noisier and we flag small-n rows.

Scope

We focus on deaths within the 42-day window. Extending to 1 year (late maternal deaths) roughly doubles the U.S. figure, but that's for a later build.

Findings

The data.

These charts and map are now built directly from the three PHP JSON feeds your professor gave you. The HTML starts empty; JavaScript fills everything after fetching the live data.

Connecting…
INTERACTIVE MAP · LIVE FROM jsonpull.php

Birth-center access by state.

Each circle represents one state from the PHP feed. Circle size shows total counted counties, and color shows the share of counties without a birth center.

Because the current feed is state-level, this map is intentionally state-level. It does not invent county coordinates.

Counties without birth centers
Lower share Medium share Higher share
Live data source: jsonpull.php. The map uses state center coordinates only to place the live state records.
CHART 1 · LIVE FROM jsonpull.php

Counties with vs. without birth centers

State comparison pulled directly from the feed
This replaces the hand-coded version. The bars are calculated from Counties_Without_Birth_Centers and Counties_With_Birth_Centers.
CHART 2 · LIVE FROM jsonpull2.php

Average MMR and total birth centers

Sorted by the values returned from the PHP feed
Sort:
If this chart says the feed returned no usable records, check jsonpull2.php directly.
CHART 3 · LIVE FROM jsonpull3.php

County access-ratio feed

Live county records pulled from the ratio feed
This chart is generated from jsonpull3.php. If the ratio feed rounds values to 0.0000, the chart switches to a visible state-level count of county records instead of showing an empty graph.
LIVE TABLES

Records feeding the visuals.

These tables are filled directly from the three PHP URLs.

PHP JSON FEEDS
StateWithout Birth CentersWith Birth CentersTotal Counties% Without
Loading jsonpull.php…
Source: jsonpull.php
StateRegionAverage MMRTotal Birth Centers
Loading jsonpull2.php…
Source: jsonpull2.php
StateCountyBirth Center Access Ratio
Loading jsonpull3.php…
Source: jsonpull3.php
Placeholder · M4 build

The narrative.

Placeholder for the interactive narrative experience that ships with the final build. The full storyboard is in the linked storyboard document.

The final build will open with a short cinematic intro on the home page — roughly twenty-two seconds of timed text, an animated red underline that swipes across emphasis words, and a cross-fade from black into the live regional map. The sequence frames the problem (most U.S. maternal deaths are preventable), names a region (Southeast Arkansas at 58.6 per 100,000), and asks why three different ways before handing the viewer off to the data page.

From the data page, the user can launch short guided walkthroughs — scripted cursor moves over the live charts that highlight key findings (the access-vs-MMR contradiction, the state-by-state birth-center gap), then return control to the user. Skippable, replayable, and built on the same animation grammar as the intro.

M3 · User Testing Summary

What we heard, and what we'll change.

We put the M2 build in front of five testers spanning a public-health graduate, a journalist, a designer, and two general-audience readers. Sessions ran 12–18 minutes. Each tester read the home page aloud, then explored the Data page without prompts. The full notes and verbatims live in a separate document; the action items below feed directly into M4.

Sources

Resources.

The foundational material that informs every chart on this site. Peer-reviewed research, official statistical agencies, and non-partisan policy institutes only.

01 · PEER-REVIEWED
NEJM · NIH / PUBMED

Cause of maternal death in the United States

Clinical-review analysis finding that roughly 84% of U.S. maternal deaths are classified as preventable, even as U.S. MMR rose 136% between 1990 and 2013 while other developed nations' rates fell 38%.

"A reversal without precedent in the developed world."
Read source →
02 · POLICY
GEPI · KAISER FAMILY FOUNDATION

Maternal mortality and the post-Dobbs policy landscape

Tracks state-level maternal mortality in the wake of the Dobbs decision: states with abortion bans saw an average 56% increase in maternal mortality; states with protective policies saw a 21% decrease.

"Policy regime is now one of the strongest predictors of outcomes."
Read source →
03 · OFFICIAL STATS
CDC · NATIONAL CENTER FOR HEALTH STATISTICS

U.S. MMR by year, race, and state

Official U.S. vital-statistics data showing Black women die at 4.5× the rate of Asian women — the largest racial mortality gap for this metric of any high-income country.

"The U.S. does not have one maternal mortality rate. It has five."
Read source →
04 · INTERNATIONAL
WORLD BANK · OECD

Global maternal mortality tracker

Cross-country harmonized data 2000–2023. Documents the U.S.-specific finding that homicide, suicide, and drug overdose have replaced hemorrhage as leading causes of U.S. maternal death (2018–2023).

"The leading U.S. maternal killers are no longer medical. They are social."
Read source →
05 · CONTEXT
COMMONWEALTH FUND

International comparison of maternal health systems

Policy-oriented comparison of maternity care across 11 high-income nations, identifying universal paid leave and midwife-led care as the two strongest correlates of lower MMR.

"The U.S. is the only peer without either pillar."
Read source →
06 · LIVED EXPERIENCE
PROPUBLICA · LOST MOTHERS SERIES

Reported-out patient narratives

Long-form investigative reporting pairing statistics with named patient stories. Useful for making aggregate numbers legible and for triangulating what official data often misses.

"Behind every data point is a family that wasn't prepared to become one."
Read source →