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Depression among the oldest old: the Umeå 85+ study
Ellinor Bergdahl1, Janna M C Gustavsson, Kristina Kallin
1Department of Community Medicine and Rehabilitation, Geriatric Medicine, Umeå University, Umeå, Sweden. elrbel00@student.umu.se
International Psychogeriatrics
|September 28, 2005
Summary
Depression is common in the oldest old, with higher rates in those aged 90 and 95. This condition is linked to poor well-being and increased mortality, highlighting the need for better assessment and treatment.
Area of Science:
- Geriatric Medicine
- Psychiatry
- Epidemiology
Background:
- Depression is a significant health concern in older populations.
- The prevalence and associated factors of depression among the oldest old (85+ years) require further investigation.
Purpose of the Study:
- To determine the prevalence of depression in individuals aged 85, 90, and 95 years and older.
- To identify factors associated with depression in this demographic.
Main Methods:
- A cross-sectional, population-based study was conducted in Umeå, Sweden, involving 242 participants aged 85+.
- Data collection included structured interviews, medical chart reviews, and assessments using validated scales (Geriatric Depression Scale-15, Montgomery-Asberg Depression Rating Scale, Mini-mental State Examination, Barthel ADL Index, Mini Nutritional Assessment, Philadelphia Geriatric Center Morale Scale).
Main Results:
- The prevalence of depression was significantly higher in 90- and 95-year-olds (34.1%, 32.3%) compared to 85-year-olds (16.8%).
- Depression was independently associated with institutional living and the number of medications used.
- Individuals with depression experienced poorer well-being and had a higher 1-year mortality rate.
Conclusions:
- Depression is prevalent, often underdiagnosed, and inadequately treated among the oldest old.
- Effective assessment and treatment strategies are crucial to improve well-being and reduce mortality in this population.