Table 1.

Baseline characteristics of participants.

	Any Retinopathy (n=50)	No Retinopathy (n=722)	p-value	AV Nicking (n=108)	No AV nicking (n=709)	p-value
Age, y	60.9 (3.9)	61.5 (4.4)	0.39	62.2 (4.0)	61.3 (4.4)	0.04
Men (%)	48.0	39.4	0.23	44.4	39.8	0.36
Black Race (%)	64.0	45.7	0.01	57.4	46.5	0.04
Study Center Jackson, MS (%)	60.0	40.4	0.007	53.7	41.2	0.01
Hypertension (%)	64.0	41.0	0.001	50.9	40.7	0.05
Cumulative SBP, mm Hg	130.9 (18.3)	123.1 (16.5)	0.002	127.3 (16.3)	123.2 (16.6)	0.02
Diabetes (%)	36.0	11.4	<0.001	13.3	13.1	0.96
Blood Glucose, mg/dl	142.9 (75.3)	106.4 (31.5)	0.001	106.7 (24.5)	109.1 (38.3)	0.39
Ever Smoked (%)	54.0	53.3	0.92	57.1	53.0	0.43
Pack Years	7.9 (16.7)	13.7 (25.2)	0.03	13.1 (23.1)	13.3 (24.7)	0.95
Total Cholesterol, mg/dl	212.8 (37.0)	209.1 (37.2)	0.50	205.2 (37.2)	209.4 (37.3)	0.28s
HDL Cholesterol, mg/dl	51.5 (17.8)	55.9 (18.9)	0.11	56.1 (18.0)	55.5 (18.8)	0.76
BMI	28.1 (4.2)	27.1 (4.7)	0.14	27.6 (4.3)	27.1 (4.7)	0.25
CHD (%)	4.2	3.5	0.82	3.7	3.3	0.82

Data are mean (SD) for continuous data and % for categorical data.

SBP indicates systolic blood pressure, HDL, high-density lipoprotein; LDL, low-density lipoprotein; BMI, body mass index; CHD, Coronary Heart Disease.