Statistical analysis
REGRESSION, INTESTINAL OBSTRUCTION, COMPLICATIONS, COMPLICATION
Univariate analyses were performed on the individual complication types (intestinal obstruction, AL, etc.) and on the overall complication rate. Fisher's exact or chi-squared test was used to compare the treatments, depending on the number of observations. Complications as a whole (CCI) were compared between treatments by linear regression with bootstrapped standard errors.Patient characteristics were summarized as frequencies and proportions (for categorical variables), as the mean values  ± standard deviations for normally distributed continuous variables and as medians with quartiles and minimum and maximum values for nonnormally distributed continuous variables. Categorical characteristics were compared using Fisher's exact test, and continuous characteristics were compared with the Wilcoxon rank-sum test. The DET scores and GIQLI questionnaire were compared by mixed-effects linear regression, considering the repeated measurements from the same patient by a random intercept. A 