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Predictor variables were tested against outcome at the 4th visit. The predictor variables were: overweight or obese, leg pain, and not better at 2nd visit.
| Number of predictor variables present in the patient | OR (95% CI) in relation to not being definitely improved at the 4th visit* |
| 0 (index) | 1 |
| 1 | 1.8 (1.1–2.9) |
| 2 | 3.4 (2.1–5.6) |
| 3 | 10.2 (5.8–18.1) |
* The Hosmer-Lemeshow test for goodness-of-fit revealed that this model had a perfect (100%) fit.
