• Farina Hodiamont, Helena Hock, Clare Ellis-Smith, Catherine Evans, Susanne de Wolf-Linder, Saskia Jünger, Janine Diehl-Schmid, Isabel Burner-Fritsch, and Claudia Bausewein.
• Department of Palliative Medicine, LMU University Hospital, LMU Munich, Munich, Germany.
• Palliat Med. 2021 May 1; 35 (5): 962-971.

BackgroundDementia is a life-limiting disease with high symptom burden. The Integrated Palliative Care Outcome Scale for Dementia (IPOS-Dem) is the first comprehensive person-centered measure to identify and measure palliative care needs of people with dementia. However, such a measure is missing in the German health care system.AimTo develop a culturally adapted German version of the IPOS-Dem and determine its content validity as a foundation for comprehensive psychometric testing.DesignCognitive interview study with intermittent analysis and questionnaire adaptation. Interview guide and coding frame followed thematic analysis according to Willis complemented by Tourangeau's model of cognitive aspects of survey methodology: comprehension, retrieval, judgment, response.ParticipantsPurposive sample with professionals (n = 29) and family carers (n = 6) of people with advanced dementia in seven nursing homes and person's own home care in four interview rounds (n = 11; 10; 7; 7).ResultsIPOS-Dem was regarded as comprehensive and accessible. Cultural adaption pertained to issues of comprehension and judgment. Comprehension challenges referred to the person-centered concept of "being affected by" used in the POS-measures. Judgment problems related to persons with limited communication causing challenges in assessment.ConclusionMost issues of cultural adaptation could be addressed by questionnaire modifications. However, interviews unveiled fundamental challenges for using proxy reported person-centered assessments. Continuous training on how to use the instrument is imperative to integrate the person-centered approach of palliative care into nursing homes as a key provider of generalist palliative care for people with dementia. The refined version is ready for psychometric testing.

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