Table 4.

Correlation between diabetic retinopathy and diabetes duration, body mass index, metabolic, and clinical parameters in type 2 diabetic patients (n = 545).

	Diabetic retinopathy
	Correlation test*
Onset of diabetes	−0.120**
Diabetes duration	0.377**
Body mass index (BMI)	0.338**
HbA1c	0.583**
Total cholesterol	0.281**
Triglycerides	0.115**
Systolic blood pressure	0.446**
Diastolic blood pressure	0.430**

 **Correlation is significant at the 0.01 level (2-tailed).