{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,9]],"date-time":"2025-09-09T22:12:37Z","timestamp":1757455957304},"reference-count":26,"publisher":"FapUNIFESP (SciELO)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Einstein (S\u00e3o Paulo)"],"abstract":"<jats:p>ABSTRACT  Objective To evaluate the psychometric properties of the seven theoretical models proposed in the literature for European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30), when applied to a sample of Brazilian cancer patients.  Methods Content and construct validity (factorial, convergent, discriminant) were estimated. Confirmatory factor analysis was performed. Convergent validity was analyzed using the average variance extracted. Discriminant validity was analyzed using correlational analysis. Internal consistency and composite reliability were used to assess the reliability of instrument.  Results A total of 1,020 cancer patients participated. The mean age was 53.3\u00b113.0 years, and 62% were female. All models showed adequate factorial validity for the study sample. Convergent and discriminant validities and the reliability were compromised in all of the models for all of the single items referring to symptoms, as well as for the \u201cphysical function\u201d and \u201ccognitive function\u201d factors.  Conclusion All theoretical models assessed in this study presented adequate factorial validity when applied to Brazilian cancer patients. The choice of the best model for use in research and\/or clinical protocols should be centered on the purpose and underlying theory of each model.<\/jats:p>","DOI":"10.1590\/s1679-45082018ao4132","type":"journal-article","created":{"date-parts":[[2018,5,5]],"date-time":"2018-05-05T19:15:18Z","timestamp":1525547718000},"source":"Crossref","is-referenced-by-count":10,"title":["European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30: factorial models to Brazilian cancer patients"],"prefix":"10.1590","volume":"16","author":[{"given":"Juliana Alvares Duarte Bonini","family":"Campos","sequence":"first","affiliation":[{"name":"Universidade Estadual Paulista,  Brazil"}]},{"given":"Maria Cl\u00e1udia Bernardes","family":"Spexoto","sequence":"additional","affiliation":[{"name":"Universidade Estadual Paulista,  Brazil"}]},{"given":"Wanderson Roberto da","family":"Silva","sequence":"additional","affiliation":[{"name":"Universidade Estadual Paulista,  Brazil"}]},{"given":"Sergio Vicente","family":"Serrano","sequence":"additional","affiliation":[{"name":"Hospital de C\u00e2ncer de Barretos,  Brazil"}]},{"given":"Jo\u00e3o","family":"Mar\u00f4co","sequence":"additional","affiliation":[{"name":"Instituto Universit\u00e1rio de Ci\u00eancias Psicol\u00f3gicas, Sociais e da Vida,  Portugal"}]}],"member":"530","published-online":{"date-parts":[[2018,5,7]]},"reference":[{"issue":"3","key":"ref1","doi-asserted-by":"crossref","first-page":"570","DOI":"10.1200\/JCO.1993.11.3.570","article-title":"The Functional Assessment of Cancer Therapy scale: development and validation of the general measure","volume":"11","author":"Cella DF","year":"1993","journal-title":"J Clin Oncol."},{"issue":"4","key":"ref2","doi-asserted-by":"crossref","first-page":"725","DOI":"10.1007\/s11136-005-3975-4","article-title":"Putting Wilson and Cleary to the test: analysis of a HRQOL conceptual model using structural equation modeling","volume":"15","author":"Sousa KH","year":"2006","journal-title":"Qual Life Res."},{"issue":"1","key":"ref3","first-page":"59","article-title":"Linking clinical variables with health-related quality of life","volume":"273","author":"Wilson IB","year":"1995","journal-title":"A conceptual model of patient outcomes. 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