RESUMEN
Objective To assess the prevalence of constipation and functional faecal retention among a group of school children in Gampaha district of Sri Lanka. Method This is a cross sectional survey. A validated, self-administered questionnaire was distributed to randomly selected children, aged 10- 16 years, in a semi-urban school in Gampaha District of Sri Lanka. Constipation was defined using Rome III criteria and Paris Consensus on Childhood Constipation Terminology (PACCT). Functional faecal retention was diagnosed using Rome II criteria. Results A total of 441 questionnaires were distributed and 429 (97.3%) responded (53.1% males, mean age 12.4 years, SD 1.5 years). According to Rome III criteria and PACCT, 46 (10.7%) had constipation. Prevalence of constipation was higher in males (14.5%) compared to females (6.5%) [OR 2.45, 95% CI 1.19-5.1, p=0.012]. Twenty three (5.4%) had functional faecal retention. Conclusions Chronic constipation is a significant problem, affecting approximately 10% of children in a semi-urban school in Gampaha district. It is commoner among males. Both Rome III criteria and PACCT are effective in diagnosing childhood constipation in epidemiological studies.