Table 1.

Demographics of Subjects from Rural Versus Urban Settings Screened for Diabetic Retinopathy Using Nonmydriatic Fundus Photography

	RURAL SITES	URBAN CENTER	P VALUE
Total number of subjects	872	517	—
Age [mean±SD (range)]	52.9±26.4 (1–91)	57.2±25.8 (27–93)	<0.001
Gender (% female)	59.2%	55.5%	0.37
Ethnicity (%)
American Indian and Alaska Native	60.1%	1.4%	<0.001
White, non-Hispanic	3.0%	27.3%
Black	0.1%	21.9%
Hispanic or Latino	0.1%	19.3%
Asian	0.2%	17.0%
Native Hawaiian and other Pacific Islander	0.1%	2.9%
Unspecified	36.4%	10.3%

SD, standard deviation.