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Investigating medical decision-making capacity in patients with cognitive impairment using a protocol based on linguistic features
Stockholm University, Faculty of Social Sciences, Department of Psychology.
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2013 (English)In: Scandinavian Journal of Psychology, ISSN 0036-5564, E-ISSN 1467-9450, Vol. 54, no 5, 386-392 p.Article in journal (Refereed) Published
Abstract [en]

A critical question is whether cognitively impaired patients have the competence for autonomous decisions regarding participation in clinical trials. The present study aimed to investigate medical decision-making capacity by use of a Swedish linguistic instrument for medical decision-making (LIMD) in hypothetical clinical trials in patients with Alzheimer's disease (AD) and mild cognitive impairment (MCI). Three comparable groups (age, education) participated in the study: AD (n=20; MMSE: 24.1 +/- 3.3) and MCI (n=22; MMSE: 26.7 +/- 2.4) patients and healthy controls (n=37; MMSE: 29.1 +/- 1.0). Medical decision-making capacity was operationalized as answers to questions regarding participation in three hypothetical clinical trials. Answers were scored regarding comprehension, evaluation and intelligibility of decisions, and a total LIMD score was used as the measure of medical decision-making ability. Groups differed significantly in LIMD with AD patients performing worst and MCI poorer than the control group. A strong association was found between all LIMD scores and diagnosis which supported the assertion that LIMD as it is designed is a one-dimensional instrument of medical decision-making capacity (MDMC). The results indicate that a fundamental communicative ability has an impact on the competence for autonomous decisions in cognitive impairment.

Place, publisher, year, edition, pages
2013. Vol. 54, no 5, 386-392 p.
Keyword [en]
Medical decision-making, Swedish protocol, cognitive impairment, communication
National Category
Psychology
Identifiers
URN: urn:nbn:se:su:diva-94729DOI: 10.1111/sjop.12068ISI: 000323927800006OAI: oai:DiVA.org:su-94729DiVA: diva2:655140
Note

AuthorCount:5;

Available from: 2013-10-10 Created: 2013-10-09 Last updated: 2017-12-06Bibliographically approved

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CiteExportLink to record
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