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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).

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

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
  1. 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.