Table 2

Distribution of cases and controls according to socio-economic background
Variables
 Cases (no.)
 Controls (no.)
 OR
 95% CI
 P value
1. Frequency of meat consumption
occasional
moderate-high
 121
79
 64
136
 3.62
 2.16–4.92
 <0.001
2. Manual work
heavy
usual
 140
60
 91
109
 2.80
 1.86–4.23
 <0.001
3. Socio-economic status
low
 165
 129
 2.60
 1.63–4.15
 <0.001
moderate-high
 35
 71


4. Occupation
housewife
 198
 196
 2.02
 0.37–11.16
 N.S
worker
 2
 4


5. Level of education
illiterate
 128
 80
 2.67
 1.78–4.00
 <0.001
6 years
 65
 103
 0.45
 0.30–0.68
 <0.001
>6 years
 7
 17
 1.00
 -
 -
6. Presence of domestic animal
present
 60
 16
 4.93
 2.72–8.93
 <0.001
absent
 140
 184


7. Housing
inadequate
 17
 10
 1.77
 0.79–3.97
 NS
adequate
 183
 190


Al-Dabbagh and Al-Taee BMC Pregnancy and Childbirth 2006 6:13   doi:10.1186/1471-2393-6-13