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Arch Gen Psychiatry. 2002 Jan;59(1):53-9.

Psychotic symptoms and paranoid ideation in a nondemented population-based sample of the very old.

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  • 1Göteborg University, Institute of Clinical Neuroscience, Psychiatry Section, Sahlgrenska University Hospital/S, SE 413 45 Göteborg, Sweden. svante.ostling@neuro.gu.se

Abstract

BACKGROUND:

Psychotic symptoms are reported to be uncommon in the elderly, and may be underrated in traditional epidemiological studies.

METHODS:

Psychotic symptoms, physical disorders, disability in daily life, and sensory impairments were assessed using results of psychiatric and physical examinations, key-informant interviews, and medical record reviews in a representative sample of nondemented individuals aged 85 years living in the community or in institutions in Göteborg, Sweden (n = 347). The sample was observed for 3 years regarding psychotic symptoms, mortality, and incident dementia.

RESULTS:

The prevalence of any psychotic symptom was 10.1% (95% confidence interval [CI], 7.1%-13.7%); hallucinations, 6.9% (95% CI, 4.5%-10.1%); and delusions, 5.5% (95% CI, 3.3%-8.4%). The prevalence of paranoid ideation was 6.9% (95% CI, 4.5%-10.1%). Stepwise logistic regression analyses showed that hallucinations were associated with major depressive syndrome (odds ratio [OR], 3.9; 95% CI, 1.3-11.9), disability in daily life (OR, 5.2; 95% CI, 1.8-14.9), and visual deficits (OR, 3.4; 95% CI, 1.0-11.1). Delusions were associated with disability in daily life (OR, 4.9; 95% CI, 1.8-13.3). Paranoid ideation was associated with visual deficits (OR, 3.6; 95% CI, 1.2-10.5) and myocardial infarction (OR, 4.6; 95% CI, 1.7-12.6). Hallucinations (OR, 3.1; 95% CI, 1.4-6.8), delusions (OR, 2.9; 95% CI, 1.2-6.9), and paranoid ideation (OR, 2.7; 95% CI, 1.2-6.2) were each related to increased incidence of dementia from 85 to 88 years of age. Hallucinations and paranoid ideation were associated with increased 3-year mortality in women but not in men.

CONCLUSIONS:

We found a higher prevalence of psychotic symptoms and paranoid ideation in the elderly than previously reported, and these symptoms were associated with a poor prognosis.

PMID:
11779282
[PubMed - indexed for MEDLINE]
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