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The Institutional Review Board of the Muhimbili University of Health and Allied Sciences approved this study. Permission to conduct the study was also obtained from Temeke Municipality council and local government committees. Written informed consent was sought from all participants before recruitment into the study. Confidentiality of participant information was guaranteed at all times.Permission to use Rome IV adult questionnaire for functional gastrointestinal disorders was requested from the Rome Foundation that approved its use and we obtained a signed agreement.Patients who tested positive for functional constipation based on the Rome IV criteria and those presenting with alarm symptoms were referred to healthcare centers for further clinical evaluation and treatment.","order":1,"name":"Ethics","label":"Ethics approval and consent to participate","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable.","order":2,"name":"Ethics","label":"Consent for publication","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no competing interests.","order":3,"name":"Ethics","label":"Competing interests","group":{"name":"EthicsHeading","label":"Declarations"}}],"article-number":"660"}}