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. Author manuscript; available in PMC: 2020 Aug 1.
Published in final edited form as: Am J Surg. 2018 Nov 28;218(2):266–270. doi: 10.1016/j.amjsurg.2018.11.018

Table 4:

Predictors of missed bowel injury. Factors that were statistically significant on univariable analysis were entered into the multivariable regression model.

Model Univariable regression Multivariable regression
 Factors OR 95% CI p OR 95% CI p
Preoperative model
 Prior abdominal inflammation 5.16 2.02–13.20 0.001 5.07 1.95–13.21 0.001
 CT free fluid, no solid organ injury 2.40 1.12–5.14 0.024 2.35 1.06–5.19 0.035
Preoperative/intraoperative model
 Prior abdominal inflammation 5.16 2.02–13.20 0.001 3.74 1.37–10.18 0.010
 CT free fluid, no solid organ injury 2.40 1.12–5.14 0.024 2.31 1.03–5.19 0.043
 Presence of adhesive disease 6.35 2.29–17.61 <0.001 4.46 1.52–13.13 0.007

OR: odds ratio, CI: confidence interval, SBP: systolic blood pressure. Area under the receiver operating characteristic curve for the preoperative multivariate model was 0.70 (95% CI 0.60– 0.80), p <0.001. Area under the receiver operating characteristic curve for the preoperative/intraoperative multivariate model was 0.74 (95% CI 0.64–0.84), p <0.001.