Patients, No. (%) | ||||
---|---|---|---|---|
Unplanned Reoperation | p value | |||
Variables | Total (N = 296) | No (N = 267) | Yes (N = 29) | |
Gender, male, n (%) | 177 (59.8) | 161 (60.3) | 16 (55.2) | 0.74 a |
Birth weight (kg), median (IQR) | 2.9 (2.2, 3.3) | 2.9 (2.2, 3.3) | 2.8 (2.0, 3.1) | 0.30 b |
Very low birth weight (< 1.5 kg) | 24 (8.1) | 20 (7.5) | 4 (13.8) | 0.27 c |
Weight at surgery (kg), median (IQR) | 2.9 (2.2, 3.3) | 2.9 (2.2, 3.3) | 2.9 (2.4, 3.2) | 0.85 b |
Gestational age (days), median (IQR) | 266.0 (245.0, 274.0) | 266.0 (245.0, 274.0) | 258.0 (244.0, 274.0) | 0.49 b |
Gestational weeks (< 37), n (%) | 127 (10.0) | 112 (8.2) | 15 (17.2) | 0.42 a |
Gestational weeks (37 ≥), n (%) | 169 (90.0) | 155 (91.8) | 14 (82.8) | |
Age at the surgery (days), median (IQR) | 6.0 (4.0, 12.0) | 6.0 (4.0, 11.0) | 6.0 (4.0, 16.0) | 0.25 b |
ASA | 0.91 c | |||
I | 1 (0.3) | 1 (0.4) | 0 (0.0) | |
II | 83 (28.0) | 76 (28.5) | 7 (24.1) | |
III | 191 (64.5) | 171 (64.0) | 20 (69.0) | |
IV | 21 (7.1) | 18 (7.1) | 2 (6.9) | |
Preoperative hemoglobin (g/dl), mean ± SD | 147.2 ± 45.3 | 147.5 ± 45.8 | 144.0 ± 41.2 | 0.90 b |
Preoperative blood transfusion, n (%) | 46 (15.5) | 38 (14.2) | 8 (27.6) | 0.11 a |