Table 1.

Sociodemographic characteristics of cases and controls.

Variables	Cases n=216		Controls n=216		Total		P value (χ2-test)
	No.	%	No.	%	No.	%
Age group							NS
20–29 years	4	1.85	4	1.85	8	1.85
30–39 years	27	12.0	27	12.0	54	12.0
40–49 years	79	36.5	79	36.5	158	36.5
50–59 years	52	24.1	52	24.1	104	24.1
≤60 years	54	24.9	54	24.9	108	24.9
Age (years) (mean±SD)	50.0±10.0	10.02	49.3±10.3	10.27
Sex							NS
Males	106	49.1	106	49.1	212	49.1
Females	110	50.9	110	50.9	220	50.9
Education							<.001
Illiterate	107	49.5	61	28.2	168	38.9
Read and write/primary	72	33.3	83	38.4	155	35.9
Intermediate	19	8.8	33	15.3	52	12.0
Secondary	13	6.0	30	13.9	43	10.0
College and above	5	2.3	9	4.2	14	3.2
Occupation							.014
Housewife	100	46.3	89	41.2	189	43.8
Government (employee and teacher)	30	13.9	45	20.8	75	17.4
Student	2	0.9	1	0.5	3	0.7
Private	30	13.9	28	13.0	58	13.5
Military	16	7.4	34	15.7	50	11.4
Unemployed	10	4.6	4	1.9	14	3.2
Retired	28	13.0	15	6.9	43	10.0
Income/month							NS
Low <1999 SR	49	22.7	42	19.4	91	21.1
Middle 2000–4999 SR	95	44.0	104	48.1	199	46.1
High ≤5000 SR	72	33.3	70	32.4	142	32.9

NS = Not significant