Table 2.
Risk bins across time horizons incidence rates.
| Time (days) | Quantile (risk bin) | IR ±SE | IRR (95%CI) | IRR p-value | Log rank | Log rank p-value |
|---|---|---|---|---|---|---|
| 30 | 1 | 299.51 ± 122.27 | Reference | |||
| 2 | 818.03 ± 204.51 | 2.73 (1.07, 6.98) | 0.036 | 4.79 | 0.029 | |
| 3 | 654.93 ± 181.65 | 2.19 (0.83, 5.75) | 0.113 | 2.65 | 0.104 | |
| 4 | 2,817.26 ± 394.5 | 9.41 (4.04, 21.92) | < 0.001 | 40.24 | < 0.001 | |
| 90 | 1 | 465.73 ± 89.63 | Reference | |||
| 2 | 628.94 ± 106.31 | 1.35 (0.82, 2.23) | 0.241 | 1.39 | 0.238 | |
| 3 | 973.8 ± 133.76 | 2.09 (1.32, 3.32) | 0.002 | 10.36 | 0.001 | |
| 4 | 2,474.68 ± 234.89 | 5.31 (3.49, 8.09) | < 0.001 | 76.10 | < 0.001 | |
| 180 | 1 | 449.21 ± 64.17 | Reference | |||
| 2 | 626.32 ± 77.69 | 1.39 (0.96, 2.02) | 0.079 | 2.79 | 0.095 | |
| 3 | 891.95 ± 95.63 | 1.99 (1.4, 2.82) | < 0.001 | 14.57 | < 0.001 | |
| 4 | 2,130.82 ± 171.15 | 4.74 (3.44, 6.54) | < 0.001 | 101.22 | < 0.001 | |
| 365 | 1 | 480.94 ± 49.34 | Reference | |||
| 2 | 510.57 ± 52.38 | 1.06 (0.8, 1.41) | 0.680 | 0.12 | 0.733 | |
| 3 | 789.63 ± 68.73 | 1.64 (1.26, 2.14) | < 0.001 | 13.13 | < 0.001 | |
| 4 | 1,721.2 ± 125.2 | 3.58 (2.8, 4.58) | < 0.001 | 99.50 | < 0.001 |
Risk bins stratified based on the Cox proportional hazards regression model. Incidence rates (IR) ± standard error (SE); Incidence rate ratios (IRR) (95% confidence interval); Reference group (risk bin 1) compared to 2, 3, and 4 risk bins within each time horizon.