Table 1.

Demographic characteristics of the study population (N=86)

Variables	Cases(n=43) n (%)	Controls(n=43) n (%)	Total(n=86) n (%)
Sex
Male	15 (34.9)	19 (44.2)	34(39.5)
Female	28 (65.1)	24 (55.8)	52(60.5)
Age
Mean age	32.9	39.0	36.0
Std deviation	14.3	18.5	16.7
Employment
Unemployed	7 (16.3)	12 (27.9)	19(22.1)
Self employed	12 (27.9)	9 (20.9)	21(24.4)
Civil servant	2 (4.7)	4 (9.3)	6(7.0)
Peasant	4 (9.3)	5 (11.6)	9(10.5)
Others	18 (41.9)	13 (30.2)	31(36.0)
Education level
No formal education	1 (2.3)	2 (4.7)	3(3.5)
Primary education	20 (46.5)	15 (34.9)	35(40.7)
O'level	17 (39.5)	17 (39.5)	34(39.5)
A'level	0	3 (7.3)	3(3.5)
Tertiary	5 (11.6)	6 (14.0)	11(12.8)
Marital status
Single	16 (37.2)	13 (30.2)	29(33.7)
Married	16 (37.2)	21 (48.8)	37(43.0)
Separated	7 (16.3)	5 (11.6)	12(14.0)
Widowed	4 (9.3)	4 (9.3)	8(9.3)