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Predictors of improvement in 6MWD (N = 137)
| Predictors | Odds ratio | Wald | p | Nagelkerke R 2 | Model Chi2 | p | |
|---|---|---|---|---|---|---|---|
| Model 1 | FEV1%pred | 1.01 | 1.36 | .24 | 2% | 1.6 | .67 |
| Necessity | 0.95 | 0.10 | .75 | ||||
| Concerns | 0.98 | 0.02 | .88 | ||||
| Model 2 | FEV1%pred | 1.01 | 1.58 | .21 | 10% | 10.5 | .06 |
| Necessity | 0.91 | 0.30 | .58 | ||||
| Concerns | 0.95 | 0.17 | .68 | ||||
| FEV1%pred × necessity | 0.98 | 3.02 | .08 | ||||
| FEV1%pred × concerns | 0.98 | 5.44 | .02 |
FEV 1 forced expiratory volume in 1 s
