| Nos. | Hazard ratio | 95% CI | p value |
---|---|---|---|---|
All ARDS patients | ||||
 Full multivariate modela | 355 | 0.421 | 0.21, 0.85 | 0.0160 |
Sensitivity analysis | ||||
 ARDS patients defined by Berlin definition | 168 | 0.43 | 0.21, 0.88 | 0.0208 |
 Initiated ≤ 2 days after hospital admission versus no corticosteroids (reference) | 262 | 0.37 | 0.18, 0.76 | 0.0072 |
 Full multivariate model, ARDS onset as baselineb | 335 | 0.48 | 0.24, 0.97 | 0.0399 |
 Initiated ≤ 2 days after ARDS onset versus no corticosteroids, ARDS onset as baselineb (reference) | 279 | 0.45 | 0.22, 0.92 | 0.0275 |