Table 1. Demographic and Perioperative Characteristics of 1892 Patients .
| Characteristic | No. (%) | P value | |
|---|---|---|---|
| Surgical service management (n = 872) | Geriatric comanagement (n = 1020) | ||
| Age, mean (SD) y | 80 (4) | 81 (4) | <.001 |
| Men | 450 (51.6) | 488 (47.8) | .11 |
| Length of stay, median (IQR), d | 4 (2-7) | 5 (3-8) | <.001 |
| Operative time, mean (SD), min | 138 (112) | 203 (146) | <.001 |
| ASA score >3a | 818 (93.8) | 963 (94.4) | .62b |
| Preoperative albumin level, mean (SD) g/dLa | 3.9 (0.5) | 4.0 (0.4) | <.001b |
| Estimated blood loss, mean (SD), mL a | 138 (309) | 200 (298) | <.001b |
| MSK-FI scorea | |||
| 0 | 104 (11.9) | 111 (10.9) | .32b |
| 1 | 227 (26.0) | 294 (28.8) | |
| 2 | 213 (24.4) | 278 (27.3) | |
| 3 | 156 (17.9) | 168 (16.5) | |
| 4 | 98 (11.2) | 95 (9.3) | |
| ≥5 | 74 (8.5) | 74 (7.3) | |
| Procedure typec | |||
| Colorectal | 137 (15.7) | 448 (43.9) | <.001 |
| Gastric and mixed tumor | 92 (10.6) | 82 (8.0) | .07 |
| Gynecology | 45 (5.2) | 264 (25.9) | <.001 |
| Head and neck | 147 (16.9) | 314 (30.8) | <.001 |
| Urology | 78 (8.9) | 180 (17.6) | <.001 |
| Plastic | 47 (5.4) | 118 (11.6) | <.001 |
| Hepatobiliary-pancreatic | 55 (6.3) | 183 (17.9) | <.001 |
| Thoracic | 309 (35.4) | 150 (14.7) | <.001 |
| Other procedures | 109 (12.5) | 159 (15.6) | .06 |
Abbreviations: ASA, American Society of Anesthesiologists; IQR, interquartile range; MSK-FI, Memorial Sloan Kettering Frailty Index.
SI conversion factor: To convert albumin to grams per liter, multiply by 10.
a
Data for characteristics with incomplete data are shown combined across 20 imputations using Rubin’s method.
b
P values assessing the association between geriatric comanagement and characteristics with incomplete data were assessed using univariable logistic regression and combined across 20 imputations using Rubin method.
c
Percentages do not sum up to 100, as patients underwent multiple procedures under different types.