Table 3. Confirmatory factor analysis, average variance extracted, and composite reliability of the refined model fitted to different groups.

Model		Confirmatory factor analysis						AVE		CR
	n	χ2 (df)	χ2/df	CFI	TLI	SRMR	RMSEA (95%CI)	PCS-12	MCS-12	PCS-12	MCS-12
Refined (baseline) model	200	48.5 (30)	1.61	0.970	0.954	0.044	0.056 (0.023–0.086)	0.37	0.39	0.69	0.79
Younger adult (18–44 years)	84	42.9 (30)	1.43	0.950	0.926	0.059	0.072 (0.000–0.118)	0.36	0.41	0.69	0.80
Adult (> 45 years)	116	43.9 (30)	1.46	0.958	0.938	0.053	0.064 (0.007–0.102)	0.36	0.38	0.68	0.78
Men	123	37.0 (30)	1.23	0.981	0.972	0.050	0.044 (0.000–0.085)	0.36	0.42	0.69	0.81
Women	77	42.5 (33)	1.28	0.956	0.940	0.061	0.062 (0.000–0.110)	0.37	0.41	0.69	0.80
Urban	80	32.9 (32)	1.02	0.996	0.994	0.057	0.019 (0.000–0.086)	0.38	0.39	0.70	0.79
Rural	120	42.3 (30)	1.40	0.968	0.953	0.050	0.059 (0.000–0.097)	0.33	0.44	0.66	0.83

χ2, chi-square; df, degrees of freedom; CFI, comparative fit index; TLI, Tucker-Lewis index; SRMR, standardized root mean square residual; RMSEA, root mean square error of approximation; CI, confidence intervals; AVE, average variance extracted; CR, composite reliability; PCS-12, physical component summary; MCS-12, mental component summary