Table 1. Age and sex of patients with diabetes included and those who were not included in the diabetic retinopathy study.

	aPatients not included, n = 152	bPatients were included, n = 61
Sex
Female, n (%)	97 (64)	40 (65)
Male, n (%)	55 (36)	21 (35)
Age in years
Mean (SD, min.-max.)	54 (11, 40–78)	52 (8, 41–72)

^aat least 20% of DM patients were not interested to participate the DR study.

^bThe study is ongoing for prevalence of and risk factors for DR study.