|  |  | Model 1 |  | Model 2 |  | Model 3 |  | Model 4 |  |
---|---|---|---|---|---|---|---|---|---|---|
 | No. (%) of MS | P | OR (95% CI) | P | OR (95% CI) | P | OR (95% CI) | P | OR (95% CI) | P |
PA | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Inactive | 19 (31.7) | 0.023 | 1.0 (reference) |  | 1.0 (reference) |  | 1.0 (reference) |  | 1.0 (reference) |  |
 Active | 21 (16.9) |  | 0.44 (0.21–0.90) | 0.024 | 0.42 (0.18–0.97) | 0.041 | 0.42 (0.18–0.98) | 0.044 | 0.47 (0.20–1.13) | 0.090 |
 Nagelkerke R2 |  |  | 0.043 |  | 0.348 |  | 0.348 |  | 0.403 |  |
CRF | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Unfit | 26 (43.3) | 0.000 | 1.0 (reference) |  | 1.0 (reference) |  | 1.0 (reference) |  | 1.0 (reference) |  |
 Fit | 14 (11.3) |  | 0.16 (0.07–0.34) | 0.000 | 0.31 (0.13–0.73) | 0.008 | 0.31 (0.13–0.74) | 0.008 | 0.31 (0.13–0.76) | 0.010 |
 Nagelkerke R2 |  |  | 0.192 |  | 0.367 |  | 0.367 |  | 0.367 |  |