Regression of variables between MRC grades: odds ratios, 95% confidence intervals and level of significance
| Outcome variable | Explanatory variable | Odds ratio (95% CI) | p value |
|---|---|---|---|
| MRC3 vs MRC 4 | Shuttle | 0.33 (0.001 to 0.613) | <0.02 |
| SGRQ total | 1.09 (1.06 to 1.39) | <0.008 | |
| HAD depression | 1.42 (1.37 to 1.95) | <0.03 | |
| MRC 4 vs MRC 5 | Shuttle | 0.11 (0.02 to 0.6) | <0.01 |
| Age | 1.13 (1.02 to 1.24) | <0.02 |