Table 3 Uni- and multivariate analysis of factors predicting using logistic regression
| Â | Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|---|
|  | Survival (n = 52) | Non-survival (n = 12) | P-value | Odds ratio | 95% CI | P-value |
Patient factors | ||||||
 Age (years)a | 72 (46–101) | 74 (60–87) | 0.8029 |  |  |  |
 Sex, male/female, n (%) | 18 (34.6) / 34 (65.3) | 7 (58.3) / 5 (41.6) | 0.1290 |  |  |  |
 BMI (kg/m2)a | 21.6 (13.5–36.0) | 20.4 (15.2–25.6) | 0.2563 |  |  |  |
 Comorbidities, n (%) | 36 (69.2) | 11 (91.6) | 0.1127 |  |  |  |
 Hypertension | 25 (48.0) | 8 (66.6) |  |  |  |  |
 Heart disease | 19 (36.5) | 5 (41.6) |  |  |  |  |
 Diabetes mellitus | 8 (15.3) | 2 (16.6) |  |  |  |  |
 Cerebrovascular disease | 6 (11.5) | 4 (33.3) |  |  |  |  |
 Collagen disease | 5 (9.6) | 0 (0) |  |  |  |  |
 Renal disease | 5 (9.6) | 4 (33.3) |  |  |  |  |
 Lung disease | 4 (7.6) | 2 (16.6) |  |  |  |  |
 Mental disease | 1 (1.9) | 2 (16.6) |  |  |  |  |
Perioperative factors | ||||||
 White blood cells (/μl)a | 8550 (900–50,900) | 3450 (1200–40,600) | 0.3311 |  |  |  |
 C-reactive protein (mg/dl)a | 4.6 (0.01–40.9) | 13.3 (0.1–32.2) | 0.3620 |  |  |  |
 Platelets (×104/μl)a | 22.4 (9.6–75.4) | 15.3 (3.9–32.2) | 0.0040* | 0.898 | 0.771–1.012 | 0.0831 |
 Albumin (mg/dl)a | 3.0 (1.6–4.7) | 2.4 (1.7–3.6) | 0.0082* | 0.495 | 0.179–33.052 | 0.5716 |
 APACHE II scorea | 10 (2–22) | 17 (5–21) | 0.0007* | 1.114 | 0.864–1.466 | 0.6986 |
 SOFA scorea | 3 (0–10) | 9 (5–14) | 0.0001* | 1.908 | 1.235–3.681 | 0.0020* |
 Interval from onset to surgery (h)a | 10 (3–140) | 8 (2–200) | 0.1961 |  |  |  |
Intraoperative factors | ||||||
 Primary disease, n (%) |  |  | 0.0764 |  |  |  |
 Diverticulosis | 23 (44.2) | 3 (25.0) |  |  |  |  |
 Iatrogenic | 11 (21.1) | 2 (16.6) |  |  |  |  |
 Cancer | 11 (21.1) | 1 (8.3) |  |  |  |  |
 Fecal impaction | 4 (7.6) | 4 (33.3) |  |  |  |  |
 Ischemic | 3 (5.7) | 2 (16.6) |  |  |  |  |
 Site of perforation, n (%) |  |  | 0.3245 |  |  |  |
 Sigmoid | 32 (61.5) | 4 (33.3) |  |  |  |  |
 Rectum | 8 (15.3) | 2 (16.6) |  |  |  |  |
 Descending | 5 (9.6) | 3 (25.0) |  |  |  |  |
 Ascending | 5 (9.6) | 1 (8.3) |  |  |  |  |
 Transverse | 1 (1.9) | 1 (8.3) |  |  |  |  |
 Cecum | 1 (1.9) | 1 (8.3) |  |  |  |  |
 Operative time (min)a | 148 (30–287) | 136 (82–336) | 0.7660 |  |  |  |
 Blood loss (ml)a | 215 (5–4100) | 500 (5–3130) | 0.3160 |  |  |  |
 Transfusion, n (%) | 17 (32.6) | 7 (58.3) | 0.0982 |  |  |  |
 Surgical procedure, n (%) |  |  | 0.4791 |  |  |  |
 Hartmann’s | 27 (51.9) | 6 (50.0) |  |  |  |  |
 Colostomy | 9 (17.3) | 1 (8.3) |  |  |  |  |
 Resection with colostomy | 4 (7.6) | 1 (8.3) |  |  |  |  |
 Simple closure with colostomy | 4 (7.6) | 1 (8.3) |  |  |  |  |
 Resection with ileostomy | 3 (5.7) | 3 (25.0) |  |  |  |  |
 Resection | 3 (5.77) | 0 (0) |  |  |  |  |
 Simple closure with ileostomy | 2 (3.8) | 0 (0) |  |  |  |  |
Body composition variable | ||||||
 Low PMI, n (%) | 21 (40.38) | 9 (75.0) | 0.0303* | 13.478 | 1.342–332.690 | 0.0252* |
 Low VATI, n (%) | 19 (36.54) | 7 (58.33) | 0.1658 |  |  |  |
 Low SATI, n (%) | 10 (19.23) | 5 (41.67) | 0.0982 |  |  |  |
 Low VSR, n (%) | 45 (86.54) | 7 (58.33) | 0.0240* | 3.5075 | 0.190–83.333 | 0.3925 |
 Low PMA, n (%) | 15 (28.85) | 5 (41.67) | 0.3878 |  |  |  |