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Table 2—

A1C, duration of diabetes, and blood pressure in patients with and without retinopathy.

Any retinopathyNo retinopathyRetinopathy present (ETDRS score ≥20)P value*
n 960 645  
A1C (%) 7.2 ± 1.4 7.6 ± 1.6 <0.001 
Duration of diabetes (years) 6.5 ± 5.7 8.6 ± 6.4 <0.001 
Systolic blood pressure (mmHg) 135 ± 20 138 ± 21 <0.01 
Diastolic blood pressure (mmHg) 77 ± 11 77 ± 11 NS 
Any retinopathyNo retinopathyRetinopathy present (ETDRS score ≥20)P value*
n 960 645  
A1C (%) 7.2 ± 1.4 7.6 ± 1.6 <0.001 
Duration of diabetes (years) 6.5 ± 5.7 8.6 ± 6.4 <0.001 
Systolic blood pressure (mmHg) 135 ± 20 138 ± 21 <0.01 
Diastolic blood pressure (mmHg) 77 ± 11 77 ± 11 NS 
Severe retinopathyNo or mild/moderate retinopathySevere retinopathy present (ETDRS score ≥50)P value*
n 1,570 35  
A1C (%) 7.4 ± 1.5 7.8 ± 1.9 0.06 
Duration of diabetes (years) 7.3 ± 6.1 8.7 ± 6.4 0.2 
Systolic blood pressure (mmHg) 136 ± 21 144 ± 22 <0.05 
Diastolic blood pressure (mmHg) 77 ± 10 81 ± 13 0.01 
Severe retinopathyNo or mild/moderate retinopathySevere retinopathy present (ETDRS score ≥50)P value*
n 1,570 35  
A1C (%) 7.4 ± 1.5 7.8 ± 1.9 0.06 
Duration of diabetes (years) 7.3 ± 6.1 8.7 ± 6.4 0.2 
Systolic blood pressure (mmHg) 136 ± 21 144 ± 22 <0.05 
Diastolic blood pressure (mmHg) 77 ± 10 81 ± 13 0.01 

Data are means ± SD.

*

Adjusted for age and sex.

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