Table 2. Model Fit Parameters From the Confirmatory Factor Analysis.

Model	Model specification	Robust χ2	df	CFI	TLI	RMSEA (95% CI)	SRMR	Change, χ2
M1: 1 Factor	Single factor	1831.21	594	0.928	0.924	0.055 (0.052-0.058)	0.077	NA
M2: 2 Factors	MBI and HADS	1451.28	593	0.955	0.952	0.044 (0.041-0.046)	0.067	379.93
M3: 2 factors	EE + DP + HADS, and PA	1583.33	593	0.95	0.946	0.046 (0.043-0.049)	0.065	247.88
M4: 3 factors	EE + DP, PA, and HADS	1108.08	591	0.982	0.981	0.028 (0.024-0.031)	0.051	343.2
M5: 3 factors	EE + DP + Dep, PA, and Anx	1496.97	591	0.956	0.954	0.043 (0.040-0.046)	0.062	86.36
M6: 3 factors	EE + DP + Anx, PA, and Dep	1463.02	591	0.958	0.955	0.042 (0.039-0.045)	0.062	120.31
M7: 3 factors	MBI, Anx, and Dep	1435.86	591	0.956	0.953	0.043 (0.040-0.046)	0.066	395.35
M8: 4 factors	EE + DP, PA, Anx, and Dep	1076.05	588	0.984	0.983	0.026 (0.022-0.029)	0.05	32.03
M9: 4 factors	EE, DP, PA, and HADS	1025.27	588	0.987	0.987	0.023 (0.019-0.027)	0.048	82.81
M10: 5 factors	EE, DP, PA, Anx, Dep	991.52	584	0.99	0.989	0.021 (0.017-0.025)	0.047	33.75

Abbreviations: Anx, anxiety; Dep, depression; DP, depersonalization; CFI, comparative fit index; EE, emotional exhaustion; HADS, Hospital Anxiety and Depression Scale; MBI, Maslach Burnout Inventory; NA, not applicable; PA, personal accomplishment; RMSEA, root mean square error of approximation; SRMR, standardized root mean residual; TLI, Tucker-Lewis index.