Table 4 Associations between statin use and the outcome in the crude analysis, multivariable analysis, and propensity-score analyses
Analysis | Delirium (%) | p | 30-day mortality (%) | p |
|---|---|---|---|---|
No. of events/no. of patients at risk (%) | ||||
No statin use | 237/1241 (19.1) | 269 (21.7) | ||
Statin use | 199/1484 (13.4) | 223 (15) | ||
Crude analysis-hazard ratio (95% CI) | 0.66 (0.53–0.81) | < 0.001 | 0.64 (0.53–0.78) | < 0.001 |
Multivariable analysis-hazard ratio (95% CI) | 0.67 (0.52–0.85) | 0.001 | 0.67 (0.52–0.85) | 0.001 |
With matching | 0.7 (0.54–0.9) | 0.006 | 0.76 (0.6–0.97) | 0.028 |
With inverse probability weighting | 0.69 (0.56–0.85) | < 0.001 | 0.7 (0.57–0.85) | < 0.001 |
Adjusted for propensity score | 0.7 (0.56–0.88) | 0.002 | 0.73 (0.59–0.9) | 0.003 |