Table 4.

Logistic models testing for interaction terms

Modelling the association with overweight/obesity					Modelling the association with underweight
Testing for interaction between female gender and having a child aged <11 years at home
	β	p value	OR	95% CI	β	p value	OR	95% CI
Intercept	-1.27	<0.01			-0.44	0.33
Female gender (=Var 1)	0.62	0.16	1.86	0.79, 4.40	-0.91	0.16	0.40	0.11, 1.43
Current smoker (=Var 2)	0.70	<0.01	2.02	1.51, 2.70	-0.79	<0.01	0.45	0.30, 0.69
Child (<11 years) in the household (=Var 3)	-0.73	<0.01	0.48	0.29, 0.78	0.21	0.35	1.23	0.79, 1.92
Interaction Var 1 * Var 3	0.70	0.02	2.01	1.12, 3.62	0.37	0.36	1.45	0.66, 3.18
Testing for interaction between female gender being aged 45-<55 years
	β	p value	OR	95% CI	β	p value	OR	95% CI
Intercept	-1.10	0.51			0.03	0.75
Female gender (=Var 1)	0.71	0.57	2.04	0.67, 6.25	-0.06	0.14	0.40	0.11, 1.43
Current smoker (=Var 2)	0.72	0.15	2.06	1.53, 2.77	-0.77	<0.01	0.45	0.30, 0.69
Age 45-<55 years (=Var 3)	-0.73	0.26	0.48	0.29, 0.81	-0.10	0.72	1.23	0.79, 1.92
Interaction Var 1 * Var 3	0.54	0.32	1.71	0.91, 3.22	-0.20	0.66	1.45	0.66, 3.18
Testing for interaction between female gender and urban residence
	β	p value	OR	95% CI	β	p value	OR	95% CI
Intercept	-0.89	0.05			-0.15	0.75
Female gender (=Var 1)	1.56	<0.01	4.75	1.84, 12.28	1.05	0.15	2.85	0.69, 11.69
Current smoker (=Var 2)	0.61	<0.01	1.83	1.36, 2.47	-0.85	<0.01	0.43	0.28, 0.65
Urban residence (=Var 3)	-0.86	<0.01	0.42	0.26, 0.69	0.07	0.78	1.07	0.67, 1.69
Interaction Var 1 * Var 3	0.14	0.65	1.15	0.64, 2.06	-0.85	.042	0.43	0.19, 0.97

OR=Odds ratio;

CI=Confidence interval;

Var=Variable;

*Association between Variable 1 and Variable 3