# of items | Multilevel confirmatory factor analysis fit indices | |||||||

χ² | df | χ²/df | CFI | RMSEA | Within-site SRMR | Between-site SRMR | ||

Hospital | 13 | 639.87* | 122 | 5.24 | 0.98 | 0.03 | 0.03 | 0.05 |

Medical office | 13 | 456.50* | 119 | 3.84 | 0.96 | 0.04 | 0.04 | 0.10 |

*χ² is significant at p<0.05. χ²/df <5.00, CFI ≥0.95, RMSEA <0.08 and SRMR <0.06 indicate good model fit.

CFI, comparative fit index; RMSEA, root mean square error of approximation; SRMR, standardised root mean squared residual.