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Updated: Aug 8, 2026
04:33
Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder
Published on: April 26, 2024
Cognitive impairment and depression outcomes in the IMPACT study
David C Steffens1, Mark Snowden, Ming-Yu Fan
1Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC 27710, USA. steff001@mc.duke.edu
Summary
Cognitive impairment does not affect acute treatment response in geriatric depression. However, cognitive decline during treatment is linked to worse long-term depression outcomes, requiring careful monitoring.
Area of Science:
- Geriatric psychiatry
- Neuroscience
- Clinical psychology
Background:
- Cognitive impairment's impact on geriatric depression treatment response remains unclear.
- Long-term outcomes for older adults with depression and cognitive decline during treatment are poorly understood.
Purpose of the Study:
- To investigate the effects of baseline cognitive impairment on acute and long-term depression treatment response in older adults.
- To examine the long-term outcomes of depression in older individuals experiencing cognitive decline during treatment.
Main Methods:
- Utilized data from 1,684 participants in the IMPACT trial with two-year follow-up.
- Employed the Six-Item Cognitive Screener for cognitive assessment and HSCL-20/depression-free days for depression measures.
- Applied linear regression and repeated-measures analyses to determine outcomes.
Main Results:
- Active intervention improved depression outcomes at one year irrespective of baseline cognitive impairment.
- Cognitive impairment at baseline did not significantly alter treatment outcomes within groups.
- Two-year cognitive decline correlated with poorer 24-month depression outcomes.
Conclusions:
- Older adults with depression and cognitive impairment can achieve significant improvement with appropriate management.
- Ongoing cognitive decline in older depressed adults signals higher risk for poor outcomes, necessitating vigilant monitoring.
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