http://www.neurology.org/content/early/2014/05/28/WNL.0000000000000528
- Elisa Neuvonen,
- Minna Rusanen, MD, PhD,
- Alina Solomon, MD, PhD,
- Tiia Ngandu, MD, PhD,
- Tiina Laatikainen, MD, PhD,
- Hilkka Soininen, MD, PhD,
- Miia Kivipelto, MD, PhD and
- Anna-Maija Tolppanen, PhD
- Correspondence to Dr. Tolppanen: anna-maija.tolppanen@uef.fi
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10.1212/WNL.0000000000000528Neurology
- Abstract
- Full Text (PDF)
- Also available:
- Data Supplement
Abstract
Objective: We investigated the association between late-life cynical distrust and incident dementia and mortality (mean follow-up times
of 8.4 and 10.4 years, respectively) in the Cardiovascular Risk Factors, Aging and Dementia Study.
Methods: Cynical
distrust was measured based on the Cook-Medley Scale and categorized
into tertiles. Cognitive status was evaluated
with a 3-step protocol including screening,
clinical phase, and differential diagnostic phase. Dementia was
diagnosed according
to DSM-IV criteria. Complete data on
exposure, outcome, and confounders were available from 622 persons (46
dementia cases) for the
dementia analyses and from 1,146 persons (361
deaths) for the mortality analyses. Age, sex, systolic blood pressure,
total
cholesterol, fasting glucose, body mass index,
socioeconomic background, smoking, alcohol use, self-reported health,
and APOE genotype were considered as confounders.
Results: Cynical
distrust was not associated with dementia in the crude analyses, but
those with the highest level of cynical distrust
had higher risk of dementia after adjusting for
confounders (relative risk 3.13; 95% confidence interval [CI]
1.15–8.55).
Higher cynical distrust was associated with
higher mortality in the crude analyses (hazard ratio 1.40; 95% CI
1.05–1.87) but
the association was explained by confounders
(adjusted hazard ratio 1.19; 95% CI 0.86–1.61).
Conclusions: Higher
cynical distrust in late life was associated with higher mortality, but
this association was explained by socioeconomic
position, lifestyle, and health status.
Association between cynical distrust and incident dementia became
evident when confounders
were considered. This novel finding suggests
that both psychosocial and lifestyle-related risk factors may be
modifiable targets
for interventions. We acknowledge the need for
larger replication studies.
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