[Table/Fig-4]:

Regression coefficients of factors affecting happiness among the study participants.

Model	Un-standardized coefficient		Standardized coefficient	t	p-value
	B	Std. Error	Beta
Constant	0.989	0.346		2.849	0.005
Informal social participation	0.048	0.009	0.193	5.574	<0.001
Income	0.216	0.040	0.188	5.463	<0.001
Formal social participation	0.033	0.007	0.162	4.744	<0.001
Marital status	0.257	0.062	0.135	4.125	<0.001
Educational grade	0.111	0.024	0.154	4.552	<0.001
Gender	0.218	0.061	0.115	3.548	<0.001
Happy parents	0.306	0.086	0.118	3.537	<0.001
Employment status	0.225	0.087	0.087	2.604	0.009