Table 1.

Characteristics of the examined sample

	Study population		Examined sample for retinopathy
	No	%	No	%
Sex
Male	2537	45.6	895	39.8
Female	3021	54.4	1354	60.2
Age group (n=2137)
Less than 40 years	847	15.2	477	21.2
40–49 years	1371	24.6	700	31.1
50–59 years	1371	24.6	552	24.5
60–69 years	1532	27.5	411	18.3
70 and above	444	8.0	109	4.8
Region
Muscat	486	8.7	479	21.3
Dhofar	96	1.7	92	4.1
Dhakhiliya	773	13.9	236	10.5
N Sharqiya	957	17.2	113	5.0
S Sharqiya	340	6.1	253	11.2
N Batinah	1860	33.4	480	21.3
S Batinah	475	8.5	277	12.3
Dhahira	301	5.4	298	13.3
Musundam	276	5.0	21	0.9
National	5564		2249