A Prediction Model for Recognizing Strangulated Small Bowel Obstruction

Table 3

Univariate analysis for comparison of 172 patients with small bowel obstruction who underwent conservative treatment with 76 who had surgery for SSBO.

Variables	Regression coefficient	Odds ratio (95% CI)	value
Sex, females (versus males)	−0.045	0.956 (0.536–1.706)	0.879
Prior abdominal procedures	0.525	1.691 (0.923–3.098)	0.089
Vomiting	0.571	1.771 (0.958–3.273)	0.068
Temperature ≥ 38.0°C	1.346	3.844 (1.501–9.840)	0.005
Heart rate (bpm) ≥ 100	0.404	1.497 (0.750–2.990)	0.252
Peritoneal irritation sign	3.526	34.000 (11.434–101.106)	<0.001
WBC (×10^9/L) > 10.0	1.519	4.569 (2.411–8.658)	<0.001
CT: small bowel dilatation ≥ 4 mm	0.359	1.432 (0.783–2.619)	0.244
CT: thick-walled small bowel ≥ 3 mm	2.787	16.238 (6.709–39.303)	<0.001
CT: small bowel air fluid level	−1.000	0.368 (0.199–0.682)	0.01
CT: ascites	3.198	24.489 (12.100–49.561)	<0.001
CT: volvulus	0.987	2.684 (1.326–5.432)	0.006

CI: confidence interval; WBC: white blood cell; CT: computed tomography.