Outcome of pediatric inflammatory bowel disease in Asian children: a multinational 1-year follow-up study

Background: Epidemiological data on pediatric inflam matory bowel disease (PIBD) have been reported in Asian countries. However, shortterm followup data, especially in Southeast Asian countries, are limited. Purpose: Analyze and compare the baseline and 1 year followup (1FU) data for PIBD in Asian children. Methods: The multinational network included patients with PIBD (aged <19 years) in 5 Asian countries (Malaysia, Philippines, Singapore, Sri Lanka, and Thailand). The diagnosis of PIBD requires gastrointestinal endoscopy. The patients' demographics, clinical information, disease re lated outcomes, and treatment data at 1FU were collected. Results: In 1995-2021, 368 patients were enrolled (Crohn disease [CD], 56.8%; ulcerative colitis [UC], 38%; and inflammatory bowel disease [IBD]unclassified, 5.2%). At 1FU, symptoms including diarrhea, bloody stools, and nausea/vomiting subsided in <3%, while abdominal pain persisted in 10.5% of patients with CD and 7.1% of patients with UC. Assessment endoscopy was performed at 1FU in 38% of CD and 31% of UC cases, of which 21% and 23% showed mucosal healing, respectively. Oral prednisolone was administered to 55.3% of patients at diagnosis and 26.8% at 1FU, while infliximab was administered to 2.5% and 7.2% of patients at diagnosis and 1FU, respectively. Independent factors of 1 year clinical remission for CD were oral prednisolone (odds ratio [OR], 0.20; 95% con fidence interval [CI], 0.06-0.68), antibiotic use (OR, 0.09; 95% CI, 0.01-0.54), and immunomodulator use (OR, 5.26; 95% CI, 1.52-18.22). A history of weight loss at diagnosis was the only independent risk factor of an IBD flare by 1FU (OR, 2.01; 95% CI, 1.12-3.63). Conclusion: The proportion of children with PIBD and abdominal pain at 1FU remained high. The rates of repeat endoscopy and infliximab use were suboptimal with high rates of systemic corticosteroid use. Quality improvement based on the aforementioned predictors may enhance PIBD care in this geographic region or similar settings.