Table 3.

Confirmatory factor analysis (CFA) results of baseline and final Spanish CSAT instruments

Phase	Subscales	Items	Chi/df	CFI	RMSEA	SRMR	AIC
Baseline	1	35	2.31	0.685	0.088	0.080	10529.6
Final	7	35	1.76	0.825	0.067	0.067	10147.1

Total n=169; CFA model fit with robust maximum-likelihood. Vuong’s test of model distinguishability demonstrated that the final seven domain model was a significantly better fit to the data than the baseline single domain model (Likelihood ratio=424.5, p<0.001).

CFI, Comparative Fit Index; CSAT, Clinical Sustainability Assessment Tool; RMSEA, root mean square error of approximation; SRMR, standardised root mean square residual.