From: Adjusting for multiple prognostic factors in the analysis of randomised trials
Variable | Proportion of patients with covariate | Regression parameter |
---|---|---|
Main effects | ||
Pleural effusion >30% | 67 | −25.4 |
Purulence | 49 | 1.8 |
Hospital infection | 13 | −7.0 |
Interaction | ||
Pleural effusion X purulence | 29 | 3.5 |
Pleural effusion X hospital infection | 7 | 24.4 |
Purulence X hospital infection | 6 | −1.6 |