Comparison of two depression measures for predicting stroke outcomes

Area of Science:

• Neurology
• Psychiatry
• Public Health

Background:

• The impact of a lifetime history of depression on ischemic stroke outcomes remains under-explored.
• Understanding depression's role is vital for improving post-stroke patient care and recovery.

Purpose of the Study:

• To compare the predictive power of current depressive symptoms versus lifetime depression history on stroke outcomes.
• To evaluate the combined predictive value of both depression measures for quality of life and functional status post-stroke.

Main Methods:

• A cohort of 460 ischemic stroke patients was assessed for current depression using the CESD and lifetime depression history.
• Functional status (mRS) and quality of life (SSQOL) were measured at 3 and 12 months post-stroke.
• Statistical analysis adjusted for key demographic and clinical variables.

Main Results:

• Over half of the stroke survivors (52.2%) reported depression by at least one measure.
• Both current depressive symptoms and lifetime depression history independently predicted poor functional outcomes and quality of life at 3 and 12 months.
• Combining both depression measures yielded stronger predictions of adverse outcomes than either measure alone.

Conclusions:

• Depression, whether current or historical, is a significant and independent predictor of poor outcomes following ischemic stroke.
• Future stroke outcome studies should incorporate assessments of both current depressive symptoms and lifetime depression history.
• These findings underscore the importance of comprehensive depression screening in stroke patients to anticipate and manage long-term recovery.