Table 1.

Demographic characteristics.

Characteristics	Group I		Group II		p	Group III		p
	No.	%	No.	%		No.	%
Gender
Women	26	47.27	288	48.73	0.836	123	49.60	0.675
Men	29	52.73	303	51.27		125	50.40
Total	55	100.00	591	100.00		248	100.00
Age Group (Years)
<40	5	9.09	8	1.35	0.031	22	8.87	0.629
41–50	16	29.09	56	9.48		76	30.65
51–60	18	32.73	84	14.21		84	33.87
61–70	12	21.82	242	40.95		49	19.76
71–75	4	7.27	201	34.01		17	6.86
Average Age	53.56 ± 7.46		64.83 ± 9.21			54.15 ± 8.32
Environment
Urban	38	69.09	270	45.69	<0.001	57.26	57.26	0.107
Rural	17	30.91	321	54.31		42.74	42.74