Structural ambiguity of the Chinese version of the hospital anxiety and depression scale in patients with coronary heart disease

Table 2 Factor structure of the HADS determined by testing the fit of models derived from factor analysis. All χ² analyses were statistically significant at p < 0.01 (χ² degrees of freedom in parentheses).

Model	WLSMVχ ²	CFI	TLI	RMSEA
Zigmond and Snaith (1983)	65.61 (33)	0.95	0.97	0.08
Moorey et al. (1991)	57.79 (32)	0.96	0.97	0.07
Caci et al. (2003) model 1	71.04 (32)	0.94	0.96	0.09
Caci et al. (2003) model 2^#	73.92 (29)	0.93	0.95	1.00
Dunbar et al. (2000)	60.19 (33)	0.96	0.97	0.07
Friedman et al. (2001)	62.99 (32)	0.95	0.97	0.08
Razavi et al. (1990)	137.54 (30)	0.84	0.89	0.15

Note: Bold indicates best model fit as a function of model fit index criterion. Abbreviations: Weighted least-square with mean and variance correction (WLSMV); Comparative fit index (CFI); Tucker-Lewis Index (TLI); Root mean squared error of approximation (RMSEA). ^# Three-factor model 2 excludes item 10.