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An overall quality of life scoring (QOL<jats:sub>24<\/jats:sub>\u2014all facets) is also proposed in this article as novelty. The correlation level between QOL<jats:sub>24<\/jats:sub> and the instrument\u2019s general facet was also investigated.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>This was a cross-sectional study with a sample of 351 elderly citizens (46.4% males and 53.6% females) randomly selected from the official dataset of the Local Health Unit of Baixo Alentejo. All the data were collected by health professionals at the participants\u2019 homes following the structured interview methodology and using the WHOQOL-BREF(PT) instrument. Three different structural equation models were developed: (i)\u00a0a first-order confirmatory factor analysis, to assess the instrument\u2019s psychometric properties; (ii)\u00a0a hierarchical second-order confirmatory factor analysis model, to allow determining the QOL<jats:sub>24<\/jats:sub> scoring; and (iii)\u00a0a more generic structural equation model, to investigate the correlation level between QOL<jats:sub>24<\/jats:sub> and the instrument\u2019s general facet.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>The WHOQOL-BREF(PT) showed an \u201calmost very good\u201d goodness of fit (comparative fit index of 0.949 and Tucker-Lewis index of 0.943), an adequate internal consistency (Cronbach\u2019s alpha: from 0.64 to 0.90; composite reliability: from 0.59 to 0.88) and tolerable convergent validity (average variance extracted: from 0.374 to 0.614). However, discriminant validity was not reached because strong correlations between the first-order factors (four QOL domains) were obtained, together with low values of the average variance extracted. The scoring of QOL domains and QOL<jats:sub>24<\/jats:sub>, determined as weighted averages (proposed in this article as novelty) were significantly different than those determined as unweighted averages. The standardized correlation coefficient between QOL<jats:sub>24<\/jats:sub> and the instrument\u2019s general facet was of 0.89 (statistically highly significant).<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>The WHOQOL-BREF(PT) is a psychometrically sound instrument to assess the QOL of the considered population sample. However, the QOL domains were found strongly intertwined. More studies are necessary to validate the weighted average scoring strategy of QOL domains and QOL<jats:sub>24<\/jats:sub>. Concurrent validity between QOL<jats:sub>24<\/jats:sub> and the instrument\u2019s general facet was considered as \u201cstrong\u201d.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12955-021-01783-z","type":"journal-article","created":{"date-parts":[[2021,5,17]],"date-time":"2021-05-17T12:03:48Z","timestamp":1621253028000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":50,"title":["Psychometric properties of the WHOQOL-BREF(PT) in a sample of elderly citizens"],"prefix":"10.1186","volume":"19","author":[{"given":"Margarida","family":"Goes","sequence":"first","affiliation":[]},{"given":"Manuel","family":"Lopes","sequence":"additional","affiliation":[]},{"given":"Jo\u00e3o","family":"Mar\u00f4co","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8687-4291","authenticated-orcid":false,"given":"Henrique","family":"Oliveira","sequence":"additional","affiliation":[]},{"given":"C\u00e9sar","family":"Fonseca","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2021,5,17]]},"reference":[{"key":"1783_CR1","doi-asserted-by":"publisher","first-page":"1859","DOI":"10.1016\/S0140-6736(18)32335-3","volume":"392","author":"H Kyu","year":"2018","unstructured":"Kyu H, Abate D, Abate K, Abay S, et al. 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