Background: Many factors impact nutritional status in inflammatory bowel disease (IBD). We undertook this study to evaluate the potential role that abdominal pain has on weight loss and dietary behavior in IBD. Methods: This is a retrospective cohort study utilizing data from an IBD registry at our institution between January 1, 2015 and August 31, 2018. Pain scores and nutritional outcomes were derived from validated questionnaires while key associated clinical data were derived from the medical record. Results: Three hundred and three patients (154 females; 206 Crohn's disease) were included in this study. Ninety-six patients (31.7%) had experienced a 6-lb or greater weight loss in the prior month. On multivariate analysis, abdominal pain and anxious/depressed state were independently associated with weight loss, while female gender and NSAID use were inversely associated with weight loss (P < 0.05). IBD patients with abdominal pain also reported significantly poorer dietary behavior than those without this symptom. Conclusions: Abdominal pain is more likely to result in negative dietary outcomes and independently associated with weight loss in IBD. IBD providers should screen for malnutrition when patients report abdominal pain.
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