Table 2 Parameter estimates, ICC, and MOR for models 1 and 2
Case-mix variabless | OR (95% CI) | |
|---|---|---|
Model 1 (Case-mix only) | Model 2 (Case-mix + hospital) | |
Female sex | 1.16 (1.13 to 1.19) | 1.16 (1.13 to 1.19) |
Agea | 1.03 (1.03 to 1.03) | 1.03 (1.03 to 1.03) |
English as primary language | 1.07 (1.01 to 1.12) | 1.07 (1.02 to 1.12) |
Emergency department triage (“Urgent” or worse) | 2.25 (2.12 to 2.40) | 2.25 (2.12 to 2.40) |
LBP without neurological signs and symptoms | 1.23 (1.13 to 1.35) | 1.23 (1.13 to 1.35) |
Arrival at ED via ambulance | 4.37 (3.95 to 4.83) | 4.37 (3.94 to 4.83) |
Presentation during working hours | 1.14 (1.09 to 1.19) | 1.14 (1.09 to 1.19) |
Hospital peer-group | ||
Principal referral (ref) | - | - |
Major | - | 0.58 (0.39 to 0.86) |
District | - | 0.25 (0.20 to 0.32) |
Community | - | 0.40 (0.30 to 0.52) |
Multi-purpose | - | 0.35 (0.26 to 0.46) |
Sub-acute | - | 0.35 (0.49 to 2.57) |
Ungrouped | - | 0.19 (0.08 to 0.46) |
Intercept | 0.05 | 0.12 |
Variance of random intercept | 0.55 | 0.39 |
ICC (95% CI) | 0.14 (0.12 to 0.17) | 0.10 (0.08 to 0.13) |
MOR | 2.03 | 1.81 |