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Short-term postoperative outcomes for obese versus non-obese inflammatory bowel disease patients undergoing bowel resection: a propensity score matched analysis.
International Journal of Colorectal Disease 2024 January 10
PURPOSE: Up to 40% of patients with inflammatory bowel disease (IBD) are obese. Obesity is a well-known risk factor for increased perioperative morbidity, but this risk has never been quantified in IBD patients undergoing abdominal surgery using the United States National Inpatient Sample (NIS) database. This study aims to compare postoperative morbidity between obese and non-obese patients undergoing bowel resection for IBD using recent NIS data.
METHODS: Adult patients who underwent bowel resection for IBD from 2015 to 2019 were identified in the NIS using ICD-10-CM coding. Patients were stratified into obese (BMI > 30 kg/m2 ) and non-obese groups, then propensity score matched (PSM) for demographic, operative, and hospital characteristics. The primary outcome was postoperative in-hospital morbidity. Secondary outcomes included postoperative in-hospital mortality, system-specific postoperative complications, total admission healthcare costs, and length of stay (LOS). Univariable and multivariable regressions were utilized.
RESULTS: Overall, 6601 non-obese patients and 671 obese patients were identified. The PSM cohort included 659 patients per group. Obese patients had significantly increased odds of experiencing postoperative in-hospital morbidity (aOR 1.50, 95% CI 1.10-2.03, p = 0.010) compared to non-obese patients. Specifically, obese patients experienced increased gastrointestinal complications (aOR 1.49, 95% CI 1.00-2.24, p = 0.050), and genitourinary complications (aOR 1.71, 95% CI 1.12-2.61, p = 0.013). There were no differences in total admission healthcare costs (MD - $2256.32, 95% CI - 19,144.54-14,631.9, p = 0.79) or LOS (MD 0.16 days, 95% CI - 0.93-1.27, p = 0.77).
CONCLUSIONS: Obese IBD patients are at greater risk of postoperative in-hospital morbidity than non-obese IBD patients. This supports targeted preoperative weight loss protocols for IBD patients to optimize surgical outcomes.
METHODS: Adult patients who underwent bowel resection for IBD from 2015 to 2019 were identified in the NIS using ICD-10-CM coding. Patients were stratified into obese (BMI > 30 kg/m2 ) and non-obese groups, then propensity score matched (PSM) for demographic, operative, and hospital characteristics. The primary outcome was postoperative in-hospital morbidity. Secondary outcomes included postoperative in-hospital mortality, system-specific postoperative complications, total admission healthcare costs, and length of stay (LOS). Univariable and multivariable regressions were utilized.
RESULTS: Overall, 6601 non-obese patients and 671 obese patients were identified. The PSM cohort included 659 patients per group. Obese patients had significantly increased odds of experiencing postoperative in-hospital morbidity (aOR 1.50, 95% CI 1.10-2.03, p = 0.010) compared to non-obese patients. Specifically, obese patients experienced increased gastrointestinal complications (aOR 1.49, 95% CI 1.00-2.24, p = 0.050), and genitourinary complications (aOR 1.71, 95% CI 1.12-2.61, p = 0.013). There were no differences in total admission healthcare costs (MD - $2256.32, 95% CI - 19,144.54-14,631.9, p = 0.79) or LOS (MD 0.16 days, 95% CI - 0.93-1.27, p = 0.77).
CONCLUSIONS: Obese IBD patients are at greater risk of postoperative in-hospital morbidity than non-obese IBD patients. This supports targeted preoperative weight loss protocols for IBD patients to optimize surgical outcomes.
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