Validity and reliability of the Chinese version of the Patient-Reported Outcomes Measurement Information System adult profile-57 (PROMIS-57)

Table 6 Model fit indices of confirmatory factor analysis for each PROMIS-57 domain

Domain	χ²	df	CFI	TLI	RMSEA	SRMR
Physical function	67.88	28	0.953	0.961	0.042	0.027
Anxiety	51.89	20	0.969	0.957	0.039	0.024
Depression	71.17	31	0.954	0.953	0.056	0.031
Fatigue	49.02	20	0.992	0.989	0.047	0.021
Sleep disturbance	85.03	28	0.979	0.986	0.046	0.019
Ability to participate in social roles and activities	46.05	20	0.971	0.959	0.049	0.033
Pain interference	58.34	25	0.988	0.983	0.052	0.014

CFI comparative fit index, TLI Tucker-Lewis Index, RMSEA root mean square error of approximation, SRMR standard root mean square residual

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