Table 3.
Absolute and relative risks associated with prophylactic anticoagulation in the first 24 hours of hospital admission with coronavirus disease 2019
| Outcomes | No of patients | No of events | Unweighted | IPT weighted | ||
|---|---|---|---|---|---|---|
| Hazard ratio (95% CI) | Cumulative incidence (95% CI) | Hazard ratio (95% CI) | ||||
| 30 day mortality: | ||||||
| Prophylactic anticoagulation | 3627 | 513 | 0.85 (0.69 to 1.05) | 14.3 (13.1 to 15.5) | 0.73 (0.66 to 0.81) | |
| No anticoagulation | 670 | 109 | Ref | 18.7 (15.1 to 22.9) | Ref | |
| Inpatient mortality: | ||||||
| Prophylactic anticoagulation | 3627 | 418 | 0.82 (0.66 to 1.03) | 11.7 (10.7 to 12.8) | 0.69 (0.61 to 0.77) | |
| No anticoagulation | 670 | 92 | Ref | 16.4 (13.0 to 20.5) | Ref | |
| Initiating therapeutic anticoagulation: | ||||||
| Prophylactic anticoagulation | 3627 | 573 | 1.14 (0.91 to 1.42) | 15.6 (14.4 to 16.8) | 0.81 (0.73 to 0.90) | |
| No anticoagulation | 670 | 92 | Ref | 18.8 (15.2 to 23.1) | Ref | |
IPT=inverse probability of treatment.