Table 1.
Patient characteristics by treatment facility. Data are presented as median (quartiles) or frequency (%).
| Characteristic | JRSC (N=13,957) | Main hospital (N=4591) | p value |
|---|---|---|---|
| Male | 2513 (18%) | 1681 (37%) | <0.0001 |
| Age at surgery | 56 (46, 65) | 59 (47, 68) | <0.0001 |
| Age 65 and older | 3427 (25%) | 1481 (32%) | |
| Age 75 and older | 736 (5.3%) | 421 (9.2%) | |
| BMI category | <0.0001 | ||
| Underweight (< 18.5) | 197 (1.4%) | 58 (1.3%) | |
| Normal (18.5–25) | 5095 (37%) | 1371 (30%) | |
| Overweight (25–30) | 4523 (32%) | 1546 (34%) | |
| Obese | |||
| 30–35 | 2589 (19%) | 903 (20%) | |
| 35–40 | 1018 (7.3%) | 424 (9.2%) | |
| 40–45 | 368 (2.6%) | 173 (3.8%) | |
| 45–50 | 121 (0.9%) | 61 (1.3%) | |
| > 50 | 46 (0.3%) | 55 (1.2%) | |
| ASA score | <0.0001 | ||
| 1 | 447 (3.2%) | 106 (2.3%) | |
| 2 | 8117 (58%) | 1777 (39%) | |
| 3 | 5393 (39%) | 2708 (59%) | |
| Type of anesthesia | <0.0001 | ||
| General | 9115 (65%) | 3934 (86%) | |
| MAC | 4842 (35%) | 657 (14%) | |
| Robotic-assisted procedure | <0.0001 | ||
| No | 11,595 (83%) | 3686 (80%) | |
| Yes | 2362 (17%) | 905 (20%) | |
| Surgical service | <0.0001 | ||
| Breast | 7531 (54%) | 282 (6.1%) | |
| Dental | 8 (< 0.1%) | 11 (0.2%) | |
| Gastric mixed tumor | 252 (1.8%) | 231 (5.0%) | |
| Gynecology | 2002 (14%) | 1253 (27%) | |
| Head and neck | 995 (7.1%) | 1350 (29%) | |
| Plastics | 1225 (8.8%) | 449 (10%) | |
| Urology | 1944 (14%) | 1015 (22%) | |