Table 1.
Baseline Characteristics of Patients Undergoing Abdominal Surgery for Malignancy or Inflammatory Bowel Disease (n = 1,043)
| Variable | Pre-intervention | Post-intervention | p Value |
|---|---|---|---|
| n (%) | 800 (77) | 243 (23) | |
| Age, y, median (range) | 59.9 (50.3–69.2) | 58.6 (49.1–68.4) | 0.40 |
| Female, n (%) | 403 (50) | 119 (49) | 0.70 |
| White, n (%) | 728 (94) | 222 (95) | 0.59 |
| Procedure, n (%) | |||
| Colectomy | 435 (54) | 127 (52) | 0.56 |
| Hepatectomy | 119 (15) | 37 (15) | 0.89 |
| Pancreatectomy | 87 (11) | 30 (12) | 0.52 |
| Indication, n (%) | |||
| Malignancy | 739 (92) | 224 (92) | 0.92 |
| Inflammatory bowel disease | 61 (8) | 19 (8) | 0.92 |
| Comorbidities, n (%) | |||
| Diabetes mellitus | 91 (11) | 30 (12) | 0.68 |
| Smoking | 84 (11) | 36 (15) | 0.06 |
| Dyspnea | 62 (8) | 14 (6) | 0.30 |
| COPD | 15 (2) | 4 (2) | 0.99 |
| Hypertension | 324 (41) | 104 (43) | 0.52 |
| Disseminated malignancy | 162 (20) | 70 (29) | <0.01 |
| Chronic steroids | 53 (7) | 23 (9) | 0.13 |
| Weight loss | 52 (7) | 19 (8) | 0.47 |
| Bleeding disorder | 26 (3) | 13 (5) | 0.13 |
| BMI, kg/m2, median (range) | 26.9 (23.5–30.9) | 27.5 (23.8–32.4) | 0.24 |
| ASA classification, n (%) | <0.01 | ||
| I | 6 (1) | 2 (1) | |
| II | 367 (46) | 69 (28) | |
| III | 424 (53) | 172 (71) | |
| IV | 3 (0.4) | 0 (0) | |
| Operative duration, min, median (range) | 175 (120–258) | 173 (125–248) | 0.88 |
| Thrombocytopenia, n (%) | 54 (7) | 17 (7) | 0.87 |
| Thrombocytosis, n (%) | 29 (4) | 11 (5) | 0.51 |
| Albumin <3.0 g/dL, n (%) | 11 (2) | 1 (1) | 0.32 |
| International normalized ratio >1.5 U, n (%) | 1 (1) | 1 (1) | 0.40 |
ASA, American Society of Anesthesiologists Physical Status Classification.