Table 3

Predictors for retinopathy by logistic regression analysis

VariableGroup A: duration of type 2 diabetes 20–30 years
Group B: duration of type 2 diabetes 10–12 years
OR ( 95% CI)POR (95% CI)P
Model 1
    Age diagnosed (years)
        <451.9 (1.1–3.6)0.041.8 (1.2–2.7)0.0003
        45–551.1 (0.6–2.1)0.82.2 (1.6–3.2)<0.0001
        >5511
    A1C (%)
        <7.011
        7–92.2 (1.2–3.6)0.0022.1 (1.4–3.1)0.0003
        >9.03.0 (1.7–5.3)0.00023.6 (2.4–5.5)<0.0001
    Hypertension2.1 (1.3–2.7)0.003NS
    Ethnicity1.9 (1.2–2.7)0.004NS
    Weight (kg)1.01 (1.00–1.02)0.045NS
Model 2
    Age diagnosed (years)0.88 (0.83–0.94)0.00010.7 (0.6–0.9)0.03
    A1C (%)1.3 (1.2–1.5)<0.00011.3 (1.2–1.4)<0.0001
    Hypertension2.0 (1.2–3.2)0.01NS
    Age (years)1.1 (1.0–1.2)0.0021.3 (1.02–1.7)0.04
    Weight (kg)1.01 (1.03–1.03)0.03NS
    Ethnicity1.8 (1.2–2.7)0.005NS