Table 2 Univariate analyses of mortality and morbidity following resection surgery, marginal matched, and caliper matched groups. Multivariable analyses of mortality and morbidity after resection surgery, all subjects. stratified by age
Variables | Marginal matched groups | Caliper matched groups | Multivariable analyses — all subjects | ||||||
|---|---|---|---|---|---|---|---|---|---|
|  |  < 70 years (n = 1471) |  ≥ 70 years (n = 1578) | MPD (95% CI), p-value | Effect size |  < 70 years (n = 1236) |  ≥ 70 years (n = 1236) | MPD (95% CI), p-value | Effect size | OR (95% CI), p-value |
90-day mortality | |||||||||
 Yes | 20 (1.4) | 50 (3.2) | 1.8 (0.7–2.9), 0.0011 | 0.12 | 15 (2.1) | 33 (2.7) | 1.5 (0.3–2.6), 0.012 | 0.11 | 2.12 (1.26–3.58), 0.005 |
Surgical complications | |||||||||
 Yes | 255 (17.3) | 228 (14.4) |  − 2.9 (− 5.6–( −)0.2), 0.033 | 0.08 | 215 (17.4) | 167 (13.5) |  − 3.9 (− 6.8–( −)1.0), 0.009 | 0.11 | 0.84 (0.69–1.03), 0.096 |
Complications requiring treatment | |||||||||
 Yes | 518 (35.4) | 538 (34.3) |  − 1.1 (− 4.6–2.3), P 0.54 | 0.02 | 418 (34.0) | 420 (34.2) | 0.1 (− 3.7–4.0), 0.98 | 0.00 | 0.98 (0.84–1.15), 0.81 |
ICU care | |||||||||
 Yes | 73 (5.0) | 91 (5.8) | 0.8 (− 0.9–2.5), P 0.38 | 0.04 | 54 (4.4) | 56 (4.6) | 0.1 (− 1.6–1.9), 0.94 | 0.01 | 1.01 (0.73–1.39), 0.97 |
Reoperation | |||||||||
 Yes | 129 (8.8) | 125 (8.0) | 0.9 (− 2.9–1.2), P 0.42 | 0.03 | 110 (9.0) | 98 (8.0) |  − 1.0 (− 3.3–1.3), 0.41 | 0.04 | 0.95 (0.73–1.23), 0.68 |
Readmission | |||||||||
 Yes | 156 (10.7) | 137 (8.7) |  − 1.9 (− 4.1–0.2) P 0.081 | 0.07 | 124 (10.1) | 109 (8.9) |  − 1.2 (− 3.6–1.2), 0.33 | 0.04 | 0.81 (0.63–1.03), 0.08 |
1-year mortality | |||||||||
 Yes | 68 (4.6) | 136 (8.6) | 4.0 (2.2–5.8), P < 0.001 | 0.16 | 55 (4.4) | 96 (7.8) | 3.3 (1.4–5.3), 0.0007 | 0.14 | 1.89 (1.38–2.60), < 0.0001 |