Table 1. Patient Characteristics.
| Characteristic | No. (%) | P Value | |
|---|---|---|---|
| Study Patients (n = 113) | Historical Controls (n = 113) | ||
| Age, mean (SD), y | 66.3 (9.8) | 67.8 (10.1) | .29 |
| Women | 35 (40.2) | 34 (39.1) | .88 |
| Height, mean (SD), cm | 173.4 (10.0) | 172.1 (9.7) | .32 |
| Weight, mean (SD), kg | 77.6 (14.8) | 79.2 (15.2) | .48 |
| BMI, mean (SD) | 25.8 (4.0) | 26.8 (4.5) | .14 |
| ASA class | |||
| I | 18 (15.9) | 18 (15.9) | .95 |
| II | 65 (57.5) | 66 (58.4) | |
| III | 28 (24.8) | 27 (23.9) | |
| IV | 2 (1.8) | 1 (0.9) | |
| Missing | 0 | 1 (0.9) | |
| Charlson Comorbidity Index | |||
| None (0) | 35 (40.2) | 41 (47.7) | .72 |
| Low (1-2) | 42 (48.3) | 35 (40.7) | |
| Moderate (3-4) | 7 (8.0) | 6 (7.0) | |
| High (≥5) | 3 (3.4) | 4 (4.7) | |
| Diabetes | 18 (15.9) | 16 (14.2) | .85 |
| Hypertension | 48 (42.5) | 52 (46.0) | .69 |
| History of | |||
| Cardiac disease | 22 (19.5) | 31 (27.4) | .21 |
| Pulmonary disease | 24 (21.2) | 17 (15.0) | .30 |
| Renal disease | 9 (8.0) | 8 (7.1) | >.99 |
| Prior abdominal and/or pelvic surgery | 28 (24.8) | 37 (32.7) | .24 |
| Metastatic disease | 4 (3.5) | 5 (4.4) | .90 |
Abbreviations: ASA, American Society of Anesthesiologists; BMI, body mass index (calculated as weight in kilograms divided by height in meters squared).