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J Geriatr Psychiatry Neurol. 2013 Mar;26(1):41-50. doi: 10.1177/0891988713476369. Epub 2013 Mar 1.

Does self-rated health predict dementia?

Author information

1
Section of Geriatrics, University of Manitoba, Winnipeg, Manitoba, Canada. pstjohn@hsc.mb.ca

Abstract

OBJECTIVES:

1. To determine if Self-Rated Health (SRH) predicts dementia over a five period in cognitively intact older adults, and in older adults with Cognitive Impairment, No Dementia (CIND); and 2. To determine if different methods of eliciting SRH (age-referenced (AR) versus unreferenced) yield similar results.

DESIGN:

Prospective cohort.

POPULATION:

1468 cognitively intact adults and 94 older adults with CIND aged 65+ living in the community, followed over five years.

MEASURES:

Age, gender, education, subjective memory loss, depressive symptoms, functional status, cognition, SRH and AR-SRH were all measured; dementia was diagnosed on clinical examination. Those with abnormal cognition not meeting criteria for dementia were diagnosed with CIND.

RESULTS:

In those who were cognitively intact at time 1, and had good SRH: 69.4% were intact; 6.0% had CIND; 6.9% had dementia, and 17.7% had died at time 2, while in those with poor SRH: 44.9% were intact, 11.1% had CIND, 9.1% had dementia, and 34.8% had died (p<0.001, chi-square test). In multinomial regression models SRH predicted dementia and death. In those with CIND at time 1 and good SRH: 2.3% were intact: 18.6% had CIND; 34.9% had dementia and 44.2% had died at time 2, while in those with poor SRH: 4.8% were intact, 31.0% had CIND, 19.0% had dementia, and 43.6% had died (p=0.30, chi-square test). In multinomial regression models, this was not significant. AR-SRH analyses were similar.

CONCLUSIONS:

In cognitively intact older adults SRH predicts dementia. In older adults with CIND, SRH does not predict dementia.

PMID:
23456753
DOI:
10.1177/0891988713476369
[Indexed for MEDLINE]

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