Antidepressant use and stroke or mortality risk in the elderly

Area of Science:

• Geriatric Medicine
• Pharmacology
• Epidemiology

Background:

• Evidence on antidepressant risks for stroke and mortality is inconsistent.
• The elderly population has the highest exposure to antidepressants.
• This study addresses the need to quantify risks in this vulnerable group.

Purpose of the Study:

• To evaluate the association between antidepressant use and risks of stroke and mortality in individuals aged 65 and older.
• To analyze these risks across different patterns of antidepressant exposure: current, recent, and past use.

Main Methods:

• A cohort study included over 1 million individuals aged 65+ from Catalonia (2010-2015).
• Antidepressant exposure was categorized into current, recent, past users, and non-users (controls).
• Cox regression analysis, adjusted for risk factors, assessed the combined risk of stroke or death.

Main Results:

• Antidepressant use was associated with higher risks of stroke or death for current (HR 1.04), recent (HR 3.34), and past users (HR 2.06).
• Current antidepressant use showed increased stroke risk (HR 1.56) but decreased mortality risk (HR 0.93).
• Recent and past use were linked to significantly increased risks for both stroke and mortality.

Conclusions:

• Antidepressant use in the elderly may elevate stroke risk.
• Potential risks associated with antidepressant use in older adults warrant careful consideration.