Risk factor commonality coefficient % Total
Unique to age  3.20 10.62
Unique to gender 1.51 5.01
Unique to HbA1c 2.12 7.03
Unique to insulin use   2.79 9.25
Unique to duration of diabetes 7.85 26.05
Common to age, and gender 0.50 1.67
Common to age, and HbA1c 2.29 7.61
Common to gender, and HbA1c -0.15 -0.51
Common to age, and insulin use   0.73 2.41
Common to gender, and insulin use   -0.26 -0.87
Common to HbA1c, and insulin use   0.38 1.27
Common to age, and duration of diabetes -1.85 -6.15
Common to gender and duration of diabetes 0.85 2.83
Common to HbA1c, and duration of diabetes 1.46 4.86
Common to insulin use and duration of diabetes 7.10 23.54
Common to age, gender, and HbA1c -0.03 -0.09
Common to age, gender, and insulin use   -0.01 -0.03
Common to age, HbA1c, and insulin use   0.52 1.74
Common to gender, HbA1c, and insulin use   0.04 0.14
Common to age, gender, and duration of diabetes -0.21 -0.70
Common to age, HbA1c, and duration of diabetes -0.64 -2.14
Common to gender, HbA1c, and duration of diabetes 0.11 0.37
Common to age, insulin use, and duration of diabetes -0.8 -2.65
Common to gender, insulin use, and duration of diabetes 0.25 0.82
Common to HbA1c, insulin, and duration of diabetes 2.29 7.59
Common to age, gender, HbA1c, and insulin use 0.00 0.01
Common to age, gender, HbA1c, and duration of diabetes 0.07 0.23
Common to age, gender, insulin use, and duration of diabetes 0.01 0.04
Common to age, HbA1c, insulin use, and duration of diabetes -0.12 -0.41
Common to gender, HbA1c , insulin use, and duration of diabetes 0.10 0.33
Common to age, gender, HbA1c , insulin use, and duration of diabetes 0.04 0.14
Total (%) 30.14 100
Note: Commonality coefficient identifying suppression underlined. HbA1c: Hemoglobin (hemoglobinA1c). Σ Commonality coefficient =multiple R2 (% Total= (Commonality coefficient)/(multiple R2)
Table 3: Commonality matrix of risk factors for diabetic retinopathy (DR) in patients with type 2 diabetes.