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.