Depressive disorders after 20 months in elderly stroke patients: a case-control study

Area of Science:

• Neurology
• Psychiatry
• Geriatrics

Background:

• Poststroke depression is a frequent complication with varying reported frequencies.
• It is linked to increased mortality and poorer rehabilitation outcomes.
• Limited research exists on depression in elderly stroke survivors, especially with population-based controls.

Purpose of the Study:

• To investigate the risk of depression in elderly stroke survivors 1.5 years post-stroke.
• To compare this risk against a matched population-based control group.

Main Methods:

• A study involving 149 elderly stroke survivors and 745 age/sex-matched general population controls.
• Utilized semistructured psychiatric examinations and cognitive assessments.
• Diagnoses followed DSM-III-R criteria; statistical analyses included t tests, chi-squared tests, and Mantel-Haenszel odds ratios.

Main Results:

• Depression occurred in 34% of stroke survivors versus 13% in controls, an odds ratio of 3.4 (95% CI, 2.3–5.0).
• The increased risk was observed across genders and age groups.
• No association was found between depression risk and the side of stroke symptoms.

Conclusions:

• Depression is a common and significant issue following stroke in the elderly.
• Early identification of poststroke depression is vital as it is treatable.
• Addressing depression can positively impact rehabilitation and mortality rates.