Multivariable analysis of total hospital costs for patients with hip fracture
| Predictor | Index hospitalisation cost (¥) | T value (df=27 198) | P value | |
| Parameter estimate | 95% CI | |||
| Final | ||||
| Intercept | 28 450 | (27 732 to 29 168) | 77.646 | 0.000 |
| Diagnosis | ||||
| Femoral neck fracture | −12 818 | (−13 640 to –11 995) | −30.559 | 0.000 |
| Intertrochanteric fracture | Reference | Reference | Reference | Reference |
| Length of hospital stay | 1648 | (1620 to 1676) | 115.479 | 0.000 |
| Age groups (years) | ||||
| 60–69 | 3279 | (2387 to 4172) | 7.202 | 0.000 |
| ≥80 | Reference | Reference | Reference | Reference |
| Treatments | ||||
| Hip replacement | 19 225 | (18 415 to 20 035) | 46.535 | 0.000 |
| Internal fixation | Reference | Reference | Reference | Reference |
| Income levels | ||||
| Middle-income | −793 | (−1577 to –9) | −1.984 | 0.047 |
| Low-income | −6490 | (−7462 to –5517) | −13.081 | 0.000 |
| High-income | Reference | Reference | Reference | Reference |