Variables	Case		Control		X²	p-value
Variables	n	%	n	%	X²	p-value
Age					32.14	<0.001
15 - 24 years	23	13.9	104	31.4
25 - 34 years	84	50.6	174	52.6
35 - 45 years	59	35.5	53	16.0
Marital status					2.61	0.106
Married	63	38.0	102	30.7
Single	103	62.0	230	69.3
Education					27.22	<0.001
None	20	12.0	7	2.1
Primary	33	19.9	49	14.8
Secondary	65	39.2	181	54.5
University	48	28.9	95	28.6
Occupation					13.03	0.001
Housewife	85	51.2	140	42.2
Formal employment	19	11.4	84	25.3
Informal employment	62	37.3	108	32.5
Religion					2.15	0.342
Christian	116	69.9	214	64.5
Muslim	34	20.5	72	21.7
Other	16	9.6	46	13.9
Residence					10.40	0.015
Bepanda	26	15.7	34	10.2
Ndogpassi	42	25.3	74	22.3
Bonaberi	33	19.9	46	13.9
Others	65	39.2	178	53.6