Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/90758
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dc.creatorCamolas, J
dc.creatorFerreira, A
dc.creatorMannucci, E
dc.creatorMascarenhas, M
dc.creatorCarvalho, M
dc.creatorMoreira, Pedro
dc.creatordo Carmo, I
dc.creatorSantos, O
dc.date.accessioned2022-09-08T08:10:48Z-
dc.date.available2022-09-08T08:10:48Z-
dc.date.issued2016
dc.identifier.issn1124-4909
dc.identifier.othersigarra:140863
dc.identifier.urihttps://hdl.handle.net/10216/90758-
dc.description.abstractSeveral health-related quality-of-life (HRQoL) dimensions are affected by obesity. Our goal was to characterize the psychometric properties of the ORWELL-R, a new obesity-related quality-of-life instrument for assessing the "individual experience of overweightness". This psychometric assessment included two different samples: one multicenter clinical sample, used for assessing internal consistency, construct validity and temporal reliability; and a community sample (collected through a cross-sectional mailing survey design), used for additional construct validity assessment and model fit confirmation. Overall, 946 persons participated (188 from the clinical sample; 758 from community sample). An alpha coefficient of 0.925 (clinical sample) and 0.934 (community sample) was found. Three subscales were identified (53.2 % of variance): Body environment experience (alpha = 0.875), Illness perception and distress (alpha = 0.864), Physical symptoms (alpha = 0.674). Adequate test-retest reliability has been confirmed (ICC: 0.78 for the overall score). ORWELL-R scores were worse in the clinical sample. Worst HRQoL, as measured by higher ORWELL-R scores, was associated with BMI increases. ORWELL-R scores were associated with IWQOL-Lite and lower scores in happiness. ORWELL-R shows good internal consistency and adequate test-retest reliability. Good construct validity was also observed (for convergent and discriminant validity) and confirmed through confirmatory factor analysis (in both clinical and community samples). Presented data sustain ORWELL-R as a reliable and useful instrument to assess obesity-related QoL, in both research and clinical contexts.
dc.language.isoeng
dc.rightsrestrictedAccess
dc.subjectCiências da Saúde, Ciências médicas e da saúde
dc.subjectHealth sciences, Medical and Health sciences
dc.titleAssessing quality of life in severe obesity: development and psychometric properties of the ORWELL-R
dc.typeArtigo em Revista Científica Internacional
dc.contributor.uportoFaculdade de Ciências da Nutrição e Alimentação
dc.identifier.doi10.1007/s40519-015-0222-z
dc.identifier.authenticusP-00K-GJY
dc.subject.fosCiências médicas e da saúde
dc.subject.fosMedical and Health sciences
Appears in Collections:FCNAUP - Artigo em Revista Científica Internacional

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