Table 1.

Demographic profile of study subjects

Factor	Males		Females		Total
	No.	%	No.	%	No.	%
Age (years)
18–30	751	45.2	912	54.8	1,663	48.6
31–50	425	33.4	847	66.6	1,272	37.1
>50	184	37.3	309	62.7	493	14.3
Sex
Male	–	–	–	–	1,360	39.7
Female	–	–	–	–	2,068	60.3
Income
Low	295	34.9	550	65.1	845	24.6
Middle	558	36.5	971	63.5	1,529	44.6
High	507	48.1	547	51.9	1,054	30.7
Residence
Urban	1,095	41.8	1,525	58.2	2,620	76.4
Rural	265	32.8	543	67.2	808	23.6