Table 1.

Definitions used in the Study

Sno	Variable	Definition
1	Albuminuria	The patient was considered to have normoalbuminuria, if Urinary Albumin Excretion (UAE) was < 30 mg/24 hour; microalbuminuria, if UAE was 30-300 mg/24 hours, and macroalbuminuria if UAE was >300 mg/24 hours
2	Diabetes Mellitus	Persons with known diabetes were those who were using either oral anti-glycemic drugs or insulin or both. Persons with newly-diagnosed diabetes were those who had their fasting blood glucose level ≥110 mg/dl on two separate days.
3	Non-sight threatening Diabetic Retinopathy	Non-sight threatening diabetic retinopathy included cases of mild or moderate non-proliferative diabetic retinopathy.21
4	Sight-threatening Diabetic Retinopathy	Sight-threatening diabetic retinopathy (Referable diabetic retinopathy) was defined as severe non-proliferative diabetic retinopathy, proliferative diabetic retinopathy and clinically significant macular edema.21