Marginal risks, risk differences and odds ratios for timing alternatives
| Measure | Timing alternatives, estimate (95% CI) | |||
|---|---|---|---|---|
| Day of admission | Inpatient day 2 | Inpatient day 3 | After 3 days | |
| Risk per 1000 surgeries* | 43.3 (40.9 to 45.6) | 42.6 (41.0 to 44.3) | 49.0 (46.5 to 51.6) | 54.2 (50.8 to 57.7) |
| Risk difference per 1000 surgeries | Reference | −0.6 (−3.5 to 2.2) | 5.8 (2.3 to 9.2) | 10.9 (6.8 to 15.1) |
| Odds ratio | 1.00 | 0.98 (0.92 to 1.05) | 1.14 (1.05 to 1.23) | 1.27 (1.16 to 1.38) |
Note: CI = confidence interval.
↵* For each timing alternative, the population-average risk of in-hospital death was estimated by weighting observations with the inverse propensity score of surgical timing within the strata that were defined according to confounders selected from a causal diagram; see Supplemental Table 2 (Appendix 2).