Table 1.
Baseline characteristics
| n (%) or mean (SD) | Relaparotomy (n = 131) | Primary laparotomy (n = 50) | p value* |
|---|---|---|---|
| Sex | |||
| Female | 53 (40.5%) | 21 (42.0%) | 0.984 |
| Male | 78 (59.5%) | 29 (58.0%) | |
| Age (years) | 60.1 (16.8) | 65.1 (15.5) | 0.076 |
| BMI (kg/m2) | 24.4 (3.9) | 25.2 (4.4) | 0.245 |
| Charlson comorbidity index | 2.5 (1.7) | 2.7 (1.9) | 0.440 |
| ASA ≥ 3 | 56 (42.7%) | 18 (36.0%) | 0.511 |
| Suspected malignancy as indication | 104 (79.4%) | 44 (88.0%) | 0.260 |
| Malign histology | 81 (61.8%) | 38 (76.0%) | 0.105 |
| Former radiotherapy | 5 (3.8%) | 1 (2.0%) | 0.884 |
| Former chemotherapy | 49 (37.4%) | 9 (18.0%) | 0.020 |
| Symptoms before surgery | |||
| Abdominal pain | 23 (17.6%) | 13 (26.0%) | 0.287 |
| Nausea | 16 (12.2%) | 16 (32.0%) | 0.003 |
| Emesis | 12 (9.2%) | 11 (22.0%) | 0.038 |
| Obstruction | 14 (10.7%) | 12 (24.0%) | 0.041 |
| Infertility | 0 (0.0%) | 0 (0.0%) | |
| Other | 9 (6.9%) | 9 (18.0%) | 0.050 |
| Malign histology in previous operation | 97 (74.0%) | n/a | n/a |
| Days since last operation | 1064.5 (1822.1) | n/a | n/a |
Differences with P values < 0.05 were deemed statistically significant and these P values are presented in bold
*Categorical variables: chi-square test; continuous variables: Student’s t test
ASA, American Society of Anesthesiologists; n/a, not applicable; BMI, body mass index