Table 2.

Goodness-of-Fit Indices for the Sinonasal Outcome Test (SNOT-22) Questionnaire (n = 275) by Model

Variables	Model 0	Model 1	Model 2	Model 3	Model 4	Model 5
X2	433.36*	N/S	N/S	195.83	200.05	137.03
df	209	N/S	N/S	199	203	199
X2/df	2.073	N/S	N/S	0.984	0.985	0.688
CFI	0.966	N/S	N/S	1.000	1.000	1.000
TLI	0.962	N/S	N/S	1.001	1.001	1.011
RMSEA	0.063	N/S	N/S	0.000	0.000	0.000
SRMR	0.100	N/S	N/S	0.066	0.067	0.056

Notes: Model 0 is a 1-general-factor model. Model 1 was proposed by DeConde et al in 2014. Model 2 was proposed by Sedaghat et al in 2015. Model 3 was proposed by Crump et al in 2016. Model 4 was proposed by Feng et al in 2017. Model 5 was proposed by Khan et al in 2021. *p <0.05.

Abbreviations: CFI, comparative fit index; RMSEA, root mean square error of approximation; SRMR, standardized root mean square residual; TLI, Tucker-Lewis Index; N/S, The model did not have a solution.