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J Cardiopulm Rehabil Prev. 2013 May-Jun;33(3):160-7. doi: 10.1097/HCR.0b013e318283927f.

Predicting mortality 12 years after an acute cardiac event: comparison between inhospital and 2-month assessment of depressive symptoms in women.

Author information

1
Heart Research Centre and Department of Psychiatry, University of Melbourne, Melbourne, Victoria, Australia. barbara.murphy@heartresearchcentre.org

Abstract

PURPOSE:

Research demonstrates that depression at the time of a cardiac event predicts early mortality. However, the best time for depression screening is unknown. We investigated the prognostic importance of inhospital and 2-month depressive symptoms in predicting 12-year mortality in female cardiac patients.

METHODS:

A consecutive series of 170 women admitted to hospital after acute myocardial infarction or for coronary artery bypass graft surgery completed the Hospital Anxiety and Depression Scale inhospital and 2 months later. Hospital Anxiety and Depression Scale's depression subscale scores of 4 to 7 were classified as "mild" depressive symptoms and 8+ as "moderate/severe" depressive symptoms. Mortality was tracked through the Australian National Death Index and other sources.

RESULTS:

: One hundred sixty-three (96%) of the 170 women were successfully tracked after 12 years. Of these women, 136 (83%) completed the depression subscale of the Hospital Anxiety and Depression Scale at both assessments and were included in the analyses. Over 12 years, 45 (33%) women died. Using logistic regression and controlling for age, disease severity, and diabetes, mild inhospital depression predicted mortality (P = .02), whereas moderate/severe inhospital depression did not (P = .14). At 2 months, moderate/severe depression predicted mortality (P = .05), whereas mild depression did not (P = .09). Half the patients (49%) changed depression class by the 2-month assessment. The death rate was highest (64%) in those whose mild inhospital depressive symptoms increased to moderate/severe and lowest (14%) in those whose moderate/severe inhospital symptoms remitted.

CONCLUSIONS:

Mild inhospital depression and moderate/severe 2-month depression were predictive of 12-year deaths. The findings suggest a prognostic benefit in undertaking repeat depression screening 2 months after an acute cardiac event.

PMID:
23478324
DOI:
10.1097/HCR.0b013e318283927f
[Indexed for MEDLINE]

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