Table 3 Effects of the age of onset of diabetes and diabetes duration on the prevalence of DR.

From: Diabetes Onset at 31–45 Years of Age is Associated with an Increased Risk of Diabetic Retinopathy in Type 2 Diabetes

Age groups of onset

Duration of diabetes

≤5 (years)

6–10 (years)

11–15 (years)

>15 (years)

Model 1

The prevalence of DR (DR/Total,%)

 ≤30 (years)

24/186

12.9

10/49

20.4

7/28

25.0

17/38

44.7

 31–45 (years)

93/483

19.3

120/352

34.1

123/222

55.4

109/193

56.5

 46–60 (years)

163/996

16.4

179/665

26.9

141/390

36.2

168/416

40.4

 ≥61 (years)

95/637

14.9

99/339

29.2

30/126

23.8

24/94

25.5

Model 2

The prevalence of DR(%, adjust SBP, HbA1c, MA)

 ≤30 (years)

15.0

12.0

22.0

50.0

 31–45 (years)

21.0

32.0

51.0

61.0

 46–60 (years)

15.0

29.0

34.0

43.0

 ≥61 (years)

16.0

31.0

24.0

32.0

  1. The prevalence of retinopathy was calculated per group in terms of diabetes onset age, with reference to diabetes duration, for all 5,214 patients. DR: diabetic retinopathy; SBP: systolic blood pressure; HbA1c: glycosylated hemoglobin; MA: microalbuminuria.
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