{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T23:06:43Z","timestamp":1791241603861,"version":"4.1.0"},"reference-count":17,"publisher":"Korean Society of Epidemiology","license":[{"start":{"date-parts":[[2022,1,10]],"date-time":"2022-01-10T00:00:00Z","timestamp":1641772800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"Samsung Medical Center","award":["SMO1220351"],"award-info":[{"award-number":["SMO1220351"]}]}],"content-domain":{"domain":["e-epih.org"],"crossmark-restriction":true},"short-container-title":["Epidemiol Health"],"abstract":"<jats:p>OBJECTIVES: Hyperphagia is a highly stressful, life-threatening feature of Prader-Willi syndrome (PWS). It is important to assess this complex behavior accurately over time. This study aimed to develop and validate the Pediatric-Youth Hyperphagia Assessment for Prader-Willi syndrome (PYHAP) as a tool targeting children and adolescents.METHODS: After an extensive literature review and qualitative interviews, the final version of the PYHAP with 14 questions in 3 domains (verbal [5], behavior [4], and social [5]) was developed and tested at Samsung Medical Center in Seoul, Korea from July 2018 to September 2019. Exploratory factor analysis and confirmatory factor analysis (CFA) were performed to confirm construct validity. The correlations between the PYHAP and the Korean Children\u2019s Eating Behavior Questionnaire (K-CEBQ) were calculated to evaluate convergent and discriminant validity. Criterion validity and the validity of the response categories were also tested.RESULTS: Cronbach\u2019s alpha coefficient of the PYHAP was 0.91. The fit indices for CFA were good (comparative fit index, 0.87; standardized root mean squared residual, 0.08). The domains of the PYHAP were closely correlated with the relevant domains of the K-CEBQ. The accuracy of the PYHAP score for predicting uncontrolled hyperphagia was good (area under the curve, 0.75; 95% confidence interval, 0.65 to 0.85).CONCLUSIONS: The PYHAP was confirmed to be a reliable and valid tool to evaluate hyperphagia in children and adolescents with PWS via caregivers\u2019 assessments. It is recommended to use the PYHAP to communicate with parents or caregivers about patients\u2019 hyperphagia or to monitor and manage extreme behaviors in children with PWS.<\/jats:p>","DOI":"10.4178\/epih.e2022014","type":"journal-article","created":{"date-parts":[[2022,1,13]],"date-time":"2022-01-13T05:00:53Z","timestamp":1642050053000},"page":"e2022014","update-policy":"https:\/\/doi.org\/10.4178\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Development and validation of the Pediatric-Youth Hyperphagia Assessment for Prader-Willi syndrome"],"prefix":"10.4178","volume":"44","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2913-059X","authenticated-orcid":true,"given":"Sung 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