Table 4.

Parameter estimates of odds ratio for the interaction effects

Parameter	Estimates	Standard error	Odd ratio	95% CI		P-value
				Lower	Upper
Wealth index * type of place of residence (Ref. richest and urban)
Poorest * rural	− 1.0308	0.5076	0.3567	0.1319	0.9647	0.0429
Poorer * rural	− 1.2839	0.4490	0.2770	0.1149	0.6677	0.0044
Middle-range * rural	− 0.8036	0.3632	0.4477	0.2197	0.9124	0.0274
Richer * rural	− 0.8738	0.3237	0.4174	0.2213	0.7871	0.0072
Number of household members * age of household head	− 0.0015	0.0007	0.9984	0.9972	0.9998	0.0241
Gender * age of head of household
Female	− 0.0122	0.0073	0.9879	0.9738	1.0022	0.0967
Region * type of place of residence (Ref. North West and urban)
South East * rural	− 0.9842	0.5224	0.3737	0.1342	1.0405	0.0605
South South * rural	− 0.35805	0.5361	0.6991	0.2444	1.9992	0.5048
South West * rural	0.2646	0.5000	1.3028	0.4889	3.4712	0.5972
North Central * rural	0.1137	0.5056	1.1204	0.4159	3.0182	0.8222
North East * rural	0.7067	0.5449	2.0273	0.6968	5.8985	0.1956