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Health-adjusted neuropsychological test norms based on 463 older Swedish car drivers
Stockholms universitet, Samhällsvetenskapliga fakulteten, Psykologiska institutionen, Biologisk psykologi. Karolinska Institutet, Sweden.
Rekke forfattare: 42016 (engelsk)Inngår i: Scandinavian Journal of Psychology, ISSN 0036-5564, E-ISSN 1467-9450, Vol. 57, nr 2, s. 93-107Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

There is a need for improved normative information in particular for older persons. The present study provides neuropsychological test norms on seven cognitive tests used in a sample representing the general older driving population, when uncontrolled and controlled for physical health. A group of 463 healthy Swedish car drivers, aged 65 to 84 years, participated in a medical and neuropsychological examination. The latter included tests of visual scanning, mental shifting, visual spatial function, memory, reaction time, selective attention, and simultaneous capacity. Hierarchical regression analyses demonstrated that, when uncontrolled for health, old age was associated with significant impairment on all seven tests. Education was associated with a significant advantage for all tests except most reaction time subtests. Women outperformed men on selective attention. Controlling for health did not consistently change the associations with education, but generally weakened those with age, indicating rises in normative scores of up to 0.36 SD (residual). In terms of variance explained, impaired health predicted on average 2.5%, age 2.9%, education 2.1% and gender 0.1%. It was concluded (1)that individual regression-based predictions of expected values have the advantage of allowing control for the impact of health on normative scores in addition to the adjustment for various demographic and performance-related variables and (2) that health-adjusted norms have the potential to classify functional status more accurately, to the extent that these norms diverge from norms uncontrolled for physical health.

sted, utgiver, år, opplag, sider
2016. Vol. 57, nr 2, s. 93-107
Emneord [en]
Cognitive aging, fitness to drive, normal adults, normative data, physical health, regression-based norms
HSV kategori
Identifikatorer
URN: urn:nbn:se:su:diva-129612DOI: 10.1111/sjop.12273ISI: 000372356600001PubMedID: 26946452OAI: oai:DiVA.org:su-129612DiVA, id: diva2:923502
Tilgjengelig fra: 2016-04-26 Laget: 2016-04-26 Sist oppdatert: 2017-11-30bibliografisk kontrollert

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