TABLE 1—

Medicaid Enrollee Demographics in New York City (NYC) vs Suburbs (Comparison Counties): 2009–2021

	All Enrollees		Enrollees With a Traffic-Related Injury
	NYC	Suburbs	NYC	Suburbs
Total person-years	51 866 126	13 719 442	140 486	40 178
Unique enrollees, no.	8 585 528	2 413 891	135 244	33 471
Race/ethnicity, %
Asian	12.8	4.4	6.4	2.7
Black	18.5	12.7	26.1	19.6
Hispanic	18.0	10.6	17.8	8.7
White	13.8	30.6	11.5	28.8
Other/unknown	36.9	41.8	38.1	40.3
Median age, y (IQR)	30.5 (14.1–52.4)	28.3 (12.2–49.2)	30.9 (20.8–46.2)	30.3 (20.5–45.3)
% Female	53.9	54.6	44.4	49.1
Median annual months enrolled (IQR)	12 (10–12)	12 (9–12)	12 (12–12)	12 (12–12)

Note. IQR = interquartile range. Data come from New York State Medicaid claims and encounter data. Race/ethnicity and gender are self-reported on enrollment in Medicaid.