Table 2.
Demographic analysis of patient groups
| Parameter | All patients | Group 1 (≤4 days) | Group 2 (>4 days) | p value |
|---|---|---|---|---|
| Number of patients, n (%) | 143 | 75 (52.4 %) | 68 (47.6 %) | – |
| Females, n (%) | 68 (47.6 %) | 39 (52 %) | 29 (42.6 %) | 0.26 |
| Males, n (%) | 75 (52.4 %) | 36 (48 %) | 39 (57.4 %) | |
| Mean age, years ± SD | 66.8 ± 12.6 | 65.9 ± 12.9 | 67.3 ± 12.3 | 0.35 |
| BMI, kg/m2 ± SD | 25.9 ± 4.9 | 26.5 ± 5.3 | 25.2 ± 4.5 | 0.24 |
| ASA 1, n (%) | 5 (3.5 %) | 4 (5.3 %) | 1 (1.5 %) | 0.14 |
| ASA 2, n (%) | 87 (60.9 %) | 44 (58.7 %) | 43 (63.2 %) | |
| ASA 3, n (%) | 47 (32.8 %) | 23 (30.7 %) | 24 (35.3 %) | |
| ASA 4, n (%) | 4 (2.8 %) | 4 (5.3 %) | 0 (0 %) | |
| Any comorbidity, n (%) | 109 (76.2 %) | 54 (72.0 %) | 55 (80.9 %) | 0.21 |
| Cardiovascular, n (%) | 52 (36.4 %) | 25 (33.3 %) | 27 (39.7 %) | 0.92 |
| Hypertension, n (%) | 74 (51.7 %) | 39 (52.0 %) | 35 (51.5 %) | 0.95 |
| Diabetes, n (%) | 28 (19.6 %) | 15 (20 %) | 13 (19.1 %) | 0.89 |
| Pulmonary, n (%) | 21 (14.7 %) | 9 (12.0 %) | 12 (17.6 %) | 0.34 |
| Renal, n (%) | 12 (8.4 %) | 7 (9.3 %) | 5 (7.4 %) | 0.67 |
| Liver, n (%) | 5 (3.5 %) | 1 (1.3 %) | 4 (5.9 %) | 0.14 |
| Distance from the place of residence <50 km, n (%) | 103 (72 %) | 52 (69.3 %) | 51 (75.0 %) | 0.33 |
| Distance from the place of residence >50 km, n (%) | 40 (28 %) | 23 (30.1 %) | 17 (25.0 %) | |
| Colonic resection, n (%) | 100 (69.9 %) | 56 (74.7 %) | 44 (64.7 %) | 0.19 |
| TME, n (%) | 43 (30.1 %) | 19 (25.3 %) | 24 (35.3 %) | 0.50 |
| AJCC Stage I, n (%) | 45 (31.5 %) | 27 (36 %) | 18 (26.5 %) | |
| AJCC Stage II, n (%) | 49 (34.2 %) | 26 (34.7 %) | 23 (33.8 %) | |
| AJCC Stage III, n (%) | 34 (23.8 %) | 16 (21.3 %) | 18 (26.5 %) | |
| AJCC Stage IV, n (%) | 15 (10.5 %) | 6 (8 %) | 9 (13.2 %) | |
| Mean length of hospital stay, days (range) | 5.5 (2–40) | 2.9 (2–4) | 8.4 (5–40) | – |
| Median length of hospital stay, days (IQR) | 4 (3–7) | 3 (2–3) | 7 (5–8) | – |
| Mean operative time, min ± SD | 185.1 ± 62.2 | 185.4 ± 51.3 | 184.8 ± 73.8 | 0.49 |
| Mean intraoperative blood loss, ml ± SD | 90.2 ± 79.5 | 84.3 ± 74.1 | 97 ± 86.1 | 0.36 |
| Conversion, n (%) | 3 (2.1 %) | 0 | 3 (4.4 %) | – |
AJCC American Joint Committee on Cancer, ASA American Society of Anaesthesiologists, SD standard deviation, IQR interquartile range