Explanatory Variables	Category	Case	Control
Maternal Age Group	<18 yrs	1	7
	18 - 35 yrs	119	239
	>35 yrs	11	11
Religion	ortodox	63	133
	catholic	9	11
	protestant	13	32
	Muslim	46	89
Maternal Occupation	employee	20	31
	Farmer	15	27
	Merchant	11	24
	housewife	85	183
Maternal Educational Status	Had formal education	90	170
Maternal Educational Status	Had no formal education	41	95
Maternal Level of Education	Primary	61	100
	Secondary	7	45
	Diploma	9	12
	Degree and above	13	13
Paternal Educational Status	Had formal education	101	197
Paternal Educational Status	Had no formal education	30	67
Paternal Level of Education	Primary	46	103
	Secondary	26	55
	Diploma	9	10
	Degree and above	20	29
Paternal Occupation	Employee	38	56
	Farmer	70	137
	Merchant	13	51
	Other	10	20