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Fractional polynomial models for effect of cumulative duration of bisphosphonate use on the risk of atypical femur fracture
| Model | Deviance D | P | Step | Comparison | Deviance difference | p-value |
|---|---|---|---|---|---|---|
| FP2 | 895.453 | −0.5, 1 | 1 | FP2 versus null | 20.656 | 0.0004 (4 d.f.) |
| FP1 | 898.156 | 2 | 2 | FP2 versus linear | 4.712 | 0.1941 (3 d.f.) |
| Linear | 900.165 | 1 | 3 | FP2 versus FP1 | 2.703 | 0.2589 (2 d.f.) |
| Null | 916.109 |
