Fig. 3: Unadjusted county-level ACP disease incidence among Medicaid enrollees (2017–2019).

The choropleth map shows U.S. counties color-coded based on ACP incidence rate quintile. Yellow counties: 390–1659 per 100,000 PY; light orange counties: 1660–2047; dark orange: 2048–2444; bright red: 2445–3043; dark red: 3044-9895; light gray: suppressed due to data quality; dark gray: suppressed due to denominator N < 90. Data from Arkansas, Florida, Maryland, New Hampshire, Rhode Island, South Carolina, Tennessee, and Vermont were suppressed due to data quality below desired standards. We also suppressed data for 84 counties with fewer than 90 person-years. Very small and very large disease incidence rates are plausible for counties with small populations. ACP All-cause pneumonia, PY person-years.