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Table 3 Goodness-of-fit indices of the structural equation model (n = 830)

From: Depression, post-traumatic stress, anxiety, and fear of COVID-19 in the general population and health-care workers: prevalence, relationship, and explicative model in Peru

   X2 df CFI TLI RMSEA [90% CI] SRMR R2
Both groups
(n = 830)
Model Aa 3389.7 692 0.940 0.945 0.068 [0.066–0.071] 0.056
Model B 4821.9 1069 0.923 0.928 0.065 [0.063–0.067] 0.065 0.613
Model C 4741.9 1068 0.924 0.930 0.064 [0.062–0.066] 0.063 0.682
Model Da 4120.2 1068 0.937 0.942 0.059 [0.057–0.061] 0.056 0.739
Model E 4114.4 1067 0.937 0.942 0.059 [0.057–0.061] 0.055 0.748
General population
(n = 640)
Model A 2674.9 692 0.946 0.951 0.067 [0.064–0.070] 0.058
Model B 3716.9 1069 0.933 0.938 0.062 [0.060–0.064] 0.065 0.627
Model C 3672.3 1068 0.934 0.939 0.062 [0.060–0.064] 0.064 0.689
Model D 3262.0 1068 0.945 0.949 0.057 [0.054–0.059] 0.057 0.750
Model E 3262.5 1067 0.945 0.949 0.057 [0.055–0.059] 0.057 0.759
Health-care workers (n = 190) Model A 1196.5 692 0.956 0.960 0.062 [0.056–0.068] 0.070
Model B 1859.8 1069 0.936 0.941 0.062 [0.057–0.067] 0.089 0.555
Model C 1807.4 1068 0.940 0.945 0.060 [0.055–0.065] 0.086 0.705
Model D 1664.6 1068 0.952 0.955 0.054 [0.049–0.059] 0.078 0.716
Model E 1662.7 1067 0.952 0.955 0.054 [0.049–0.059] 0.078 0.723
  1. X2 chi-square, df degree of freedom, CFI comparative fit index, TLI Tucker-Lewis Index, RMSEA root mean square error of approximation, SRMR standardized root mean square, R2 coefficient of determination. aThese are the models presented in Fig. 2