Table 1.
Patient characteristics
| All patients (N = 109) | No antibiotics (N = 57) | Antibiotic treatment (N = 52)a | P value | |
|---|---|---|---|---|
| Patient demographics | ||||
| Age, mean (SD) | 53 (11) | 52 (11) | 55 (12) | 0.137c |
| Female gender, N (%) | 36 (33%) | 22 (39%) | 14 (27%) | 0.196d |
| ASA classification | 0.403e | |||
| ASA I | 65 (60%) | 37 (65%) | 28 (54%) | |
| ASA II | 38 (35%) | 18 (32%) | 20 (38%) | |
| ASA III | 6 (5%) | 2 (4%) | 4 (8%) | |
| BMI kg/m2, mean (SD) | 27.6 (4.6) | 26.6 (3.6) | 28.9 (5.4) | 0.026c |
| History of diverticulitis, N (%) | 10 (9%) | 6 (10%) | 4 (9%) | 0.496d |
| Clinical status | ||||
| Temperature °C, mean (SD) | 37.6 (0.8) | 37.5 (0.8) | 37.7 (0.8) | 0.118c |
| Laboratory findings | ||||
| CRP (mg/L), median (IQR)b | 124 (76–199) | 115 (73–179) | 142 (90–218) | 0.1064 |
| Leucocytes (10^9/L), mean (SD)b | 14.8 (4.1) | 14.7 (3.6) | 14.9 (4.6) | 0.803c |
| CT findings | ||||
| Volume of pericolic air (CC), median IQR | 1.5 (1.0–2.5) | 1.5 (1.0–2.0) | 2.0 (1.5–3.0) | 0.019f |
| Intraperitoneal fluid, N (%) | 12 (11%) | 9 (16%) | 3 (6%) | 0.096d |
SD standard deviation, IQR inter quartile range, ASA American Society of Anesthesiologists, BMI body mass index, CRP C-reactive protein, WBC white blood cell
aWithin 24 h after presentation
bAt presentation
cIndependent T test
dChi2 test
eFisher’s exact test
fMann-Whitney U test