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Data were collected in nine centres using consecutive sampling. All patients were screened for eligibility. Inclusion criteria: \u226518\u2009years, mentally fit to give consent, diagnosed with an incurable, potentially life-threatening illness, read, write and understand Portuguese. Translation and back translation with independent native speakers blind to the original measure created a Portuguese version, which was culturally adapted using cognitive interviews. For psychometric testing, the COSMIN checklist was followed. Reliability and content validity were assessed for patient and staff versions. Construct and criterion validity were tested for patient version.<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Results<\/jats:title>\n<jats:p>1703 individuals were screened between July 1st 2015 and February 2016, 135 (7.9%) were included. Mean age was 66.8\u2009years (SD 12.7), 58 (43%) were female. Most patients (109; 80.7%) had a cancer diagnosis. Cronbach\u2019s alpha showed good internal consistency, 0.657 for patient, 0.705 for staff versions. Intraclass correlation coefficient testing reproducibility revealed very good reliability, 0.794\u20130.950 for patient and 0.456\u20130.925 for staff versions. There was good content validity and significant results for construct validity. Physical symptoms were better detected by females. IPOS could discriminate: practical issues in different places of care, based on cancer diagnosis, physical and emotional symptoms based on life expectancy both for patient and professional dimensions, physical and emotional symptoms based on phase of illness, for professional dimensions, and physical symptoms from the patients\u2019 viewpoint.<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Conclusions<\/jats:title>\n<jats:p>The Portuguese IPOS is a reliable and valid measure.<\/jats:p>\n<\/jats:sec>","DOI":"10.1186\/s12904-020-00685-z","type":"journal-article","created":{"date-parts":[[2020,11,24]],"date-time":"2020-11-24T19:04:39Z","timestamp":1606244679000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":27,"title":["Validation and cultural adaptation of the Integrated Palliative care Outcome Scale (IPOS) for the Portuguese population"],"prefix":"10.1186","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1655-7391","authenticated-orcid":false,"given":"B\u00e1rbara","family":"Antunes","sequence":"first","affiliation":[]},{"given":"Pedro Lopes","family":"Ferreira","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2020,11,24]]},"reference":[{"issue":"8","key":"685_CR1","doi-asserted-by":"publisher","first-page":"1045","DOI":"10.1177\/0269216319854264","volume":"33","author":"FE Murtagh","year":"2019","unstructured":"Murtagh FE, Ramsenthaler C, Firth A, Groeneveld EI, Lovell N, Simon ST, et al. 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Jo\u00e3o \u2013 Entidade P\u00fablica Empresarial (no reference number); Comiss\u00e3o de \u00c9tica para a Sa\u00fade Administra\u00e7\u00e3o Regional de Sa\u00fade Centro - 77\/2015; Comiss\u00e3o de \u00c9tica para a Sa\u00fade de Lisboa e Vale do Tejo \u2013 6801\/CES\/2015; Comiss\u00e3o de \u00c9tica do Centro Hospitalar de Vila Nova de Gaia\/Espinho \u2013 275\/2015; Conselho de Investiga\u00e7\u00e3o e da Comiss\u00e3o de \u00c9tica do Instituto Portugu\u00eas de Oncologia de Lisboa Francisco Gentil, Entidade P\u00fablica Empresarial \u2013 UIC\/967 n\u00b0 89\/2015; Comiss\u00e3o de \u00c9tica Instituto S. Jo\u00e3o de Deus \u2013 CEISJD03_15; Comiss\u00e3o de \u00c9tica do Centro Acad\u00e9mico de Medicina de Lisboa \u2013 51\/15; Comiss\u00e3o de \u00c9tica da Unidade Local de Sa\u00fade do Nordeste Entidade P\u00fablica Empresarial \u2013 p\u00b0, CE.Informed written (signed) consent was obtained from all participants (patients and healthcare professionals).","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no competing interests.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"178"}}