Table 3.
Beta coefficients and P-values for baseline variables used in multivariate model identifying predictors of weight and fat-free mass loss over study period
| Beta coefficient | P-value | |
|---|---|---|
| Predictors of weight loss over study period (R2=0.11, P=0.11) | ||
| FEV1 % predicted | −0.04 | 0.70 |
| Exacerbation frequency over previous 12 months | 0.21 | 0.07 |
| Sputum neutrophil % | −0.02 | 0.90 |
| Serum C reactive protein | 0.09 | 0.43 |
| Smoking status | 0.22 | 0.05 |
| Predictors of fat-free mass loss over study period (R2=0.07, P=0.25) | ||
| FEV1 % predicted | 0.08 | 0.46 |
| Exacerbation frequency over previous 12 months | 0.16 | 0.17 |
| Sputum neutrophil % | 0.00 | 1.00 |
| Serum C reactive protein | 0.20 | 0.08 |
| Smoking status | 0.14 | 0.89 |
Abbreviation: FEV1, forced expiratory volume in 1 second.