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Table 3—

Relationship of retinal arteriolar and venular caliber with severity of retinopathy of participants with diabetes (right eyes only), all individuals, and by racial/ethnic groups

Retinal vascular caliber (μm)
No retinopathyMinimal retinopathyEarly-severe retinopathyP for trend
n (%) 727 (81.5) 93 (10.4) 72 (8.1)  
Retinal arteriolar caliber (CRAE)     
    Model 4*     
All individuals 144.7 ± 0.59 145.8 ± 1.50 145.6 ± 1.79 0.65 
White 143.9 ± 1.85 142.7 ± 3.60 136.7 ± 6.22 0.24 
Black 146.5 ± 1.29 147.0 ± 2.74 146.0 ± 3.33 0.87 
Hispanic 148.2 ± 1.55 153.5 ± 2.95 151.3 ± 3.00 0.28 
Chinese 145.8 ± 2.81 142.7 ± 5.81 151.3 ± 5.54 0.35 
    Model 5     
All individuals 145.8 ± 0.74 146.4 ± 1.44 144.2 ± 1.69 0.34 
White 143.1 ± 1.61 141.9 ± 3.12 134.1 ± 5.40 0.09 
Black 145.6 ± 1.14 147.1 ± 2.39 142.0 ± 2.95 0.22 
Hispanic 147.9 ± 1.38 150.6 ± 2.65 148.9 ± 2.69 0.70 
Chinese 145.8 ± 2.40 139.5 ± 5.02 144.6 ± 4.90 0.82 
Retinal venular caliber (CRVE)     
    Model 4*     
All individuals 221.8 ± 1.36 224.0 ± 2.66 231.2 ± 3.07 0.002 
White 209.2 ± 3.17 209.4 ± 6.17 215.6 ± 10.7 0.54 
Black 227.4 ± 2.13 223.6 ± 4.47 239.5 ± 5.34 0.02 
Hispanic 222.5 ± 2.51 230.8 ± 4.84 229.1 ± 4.92 0.17 
Chinese 221.5 ± 3.90 229.2 ± 8.10 237.9 ± 7.76 0.05 
    Model 5     
All individuals 220.6 ± 1.20 221.9 ± 2.34 228.6 ± 2.72 0.003 
White 208.2 ± 2.74 209.4 ± 5.32 220.7 ± 9.23 0.16 
Black 222.7 ± 3.92 226.4 ± 1.86 237.5 ± 4.77 0.02 
Hispanic 221.7 ± 2.31 226.4 ± 4.43 226.3 ± 4.49 0.29 
Chinese 220.5 ± 3.32 230.6 ± 6.90 233.1 ± 6.65 0.07 
Retinal vascular caliber (μm)
No retinopathyMinimal retinopathyEarly-severe retinopathyP for trend
n (%) 727 (81.5) 93 (10.4) 72 (8.1)  
Retinal arteriolar caliber (CRAE)     
    Model 4*     
All individuals 144.7 ± 0.59 145.8 ± 1.50 145.6 ± 1.79 0.65 
White 143.9 ± 1.85 142.7 ± 3.60 136.7 ± 6.22 0.24 
Black 146.5 ± 1.29 147.0 ± 2.74 146.0 ± 3.33 0.87 
Hispanic 148.2 ± 1.55 153.5 ± 2.95 151.3 ± 3.00 0.28 
Chinese 145.8 ± 2.81 142.7 ± 5.81 151.3 ± 5.54 0.35 
    Model 5     
All individuals 145.8 ± 0.74 146.4 ± 1.44 144.2 ± 1.69 0.34 
White 143.1 ± 1.61 141.9 ± 3.12 134.1 ± 5.40 0.09 
Black 145.6 ± 1.14 147.1 ± 2.39 142.0 ± 2.95 0.22 
Hispanic 147.9 ± 1.38 150.6 ± 2.65 148.9 ± 2.69 0.70 
Chinese 145.8 ± 2.40 139.5 ± 5.02 144.6 ± 4.90 0.82 
Retinal venular caliber (CRVE)     
    Model 4*     
All individuals 221.8 ± 1.36 224.0 ± 2.66 231.2 ± 3.07 0.002 
White 209.2 ± 3.17 209.4 ± 6.17 215.6 ± 10.7 0.54 
Black 227.4 ± 2.13 223.6 ± 4.47 239.5 ± 5.34 0.02 
Hispanic 222.5 ± 2.51 230.8 ± 4.84 229.1 ± 4.92 0.17 
Chinese 221.5 ± 3.90 229.2 ± 8.10 237.9 ± 7.76 0.05 
    Model 5     
All individuals 220.6 ± 1.20 221.9 ± 2.34 228.6 ± 2.72 0.003 
White 208.2 ± 2.74 209.4 ± 5.32 220.7 ± 9.23 0.16 
Black 222.7 ± 3.92 226.4 ± 1.86 237.5 ± 4.77 0.02 
Hispanic 221.7 ± 2.31 226.4 ± 4.43 226.3 ± 4.49 0.29 
Chinese 220.5 ± 3.32 230.6 ± 6.90 233.1 ± 6.65 0.07 

Data are ANCOVA models showing mean ± SE of retinal arteriolar and venular caliber (in μm).

*

Model 4: Adjusted for age, race (except for race-specific models), sex, study center, systolic blood pressure, BMI, total cholesterol, triglycerides, current smoking, CRP, A1C, and duration of diabetes.

Model 5: Adjusted for variables in model 4 plus venular caliber (in models of arteriolar caliber) and arteriolar caliber (in models of venular caliber).

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