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Factors Associated With Abdominal Pain in Patients With Active and Quiescent Ulcerative Colitis: A Multicohort Study
Tom van Gils1, Hans Törnblom1, Jóhann P Hreinsson1
1Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Background:
Abdominal pain can be an overlooked symptom in patients with ulcerative colitis (UC).
Aims:
The aim of this study was to investigate the prevalence and factors associated with abdominal pain in active and quiescent UC.
Methods:
Three study cohorts of adult UC patients were used. Cross-sectional cohorts I and II included 130 (46 active) and 288 (156 active) patients. Longitudinal cohort III included 83 patients with active disease at diagnosis that reached deep remission during follow-up. The Gastrointestinal Symptom Rating Scale was used to assess abdominal pain and other validated questionnaires to assess psychological distress, fatigue and quality of life (QoL).
Results:
In the two cross-sectional cohorts, 63% and 58% of the active vs. 54% and 33% of the quiescent UC patients reported abdominal pain (both p ≤ 0.02). In the longitudinal cohort, 71% had abdominal pain at diagnosis vs. 46% when in remission (p < 0.001). In multivariable models, symptoms of anxiety were associated with higher abdominal pain levels in both cross-sectional cohorts (OR 1.75 [IQR 1.11-2.76] and OR 1.99 [1.45-2.73]), whereas in cohort II, active disease (OR 2.68 [1.61-4.45]) and female sex (OR 2.03 [1.21-3.41]) were also associated with pain. QoL was negatively correlated with higher levels of abdominal pain, both in active and quiescent disease.
Conclusions:
Abdominal pain in UC is prevalent and associated with lower QoL in both active and quiescent disease. Associated factors are active disease, female sex and psychological symptoms, especially anxiety. We suggest considering a holistic approach when treating UC patients with abdominal pain.
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