Table 2.

Univariate linear regression analysis of association between postintervention total mean score and sociodemographic variables

Sociodemographic variables	B (regression coefficient)	SE	t	P	95% CI for B
					Lower	Upper
Urban	−25.643	5.958	4.30	<0.001*	13.91	37.37
13-16 years	−7.434	4.242	1.75	0.081	0.91	15.78
Class	−3.367	2.597	1.29	0.196	1.74	8.48
Educational status of mother above high school	2.142	2.158	0.99	0.322	2.10	6.39
Educational status of father above high school	0.446	1.544	0.28	0.773	2.59	3.48

CI=Confidence interval, SE=Standard error