Predictors of depression 12 months after cardiac hospitalization: the Identifying Depression as a Comorbid Condition

Geoff Schrader1, Frida Cheok, Ann-Louise Hordacre

  • 1Department of Psychiatry, University of Adelaide, Queen Elizabeth Hospital, Woodville, South Australia, Australia. geoffrey.schrader@adelaide.edu.au

Insights

Depression after cardiac hospitalization can be predicted by three factors: prior emotional health issues, current smoking, and depression during the hospital stay. Many patients experience persistent depression for up to a year.

Area of Science:

  • Cardiology
  • Psychiatry
  • Public Health

Background:

  • Cardiac hospitalization presents a significant risk for developing or exacerbating depression.
  • Understanding predictors of post-cardiac depression is crucial for timely intervention.
  • The natural history of depression following cardiac events requires further elucidation.

Purpose of the Study:

  • To identify clinical and demographic characteristics predicting depression 12 months post-cardiac hospitalization.
  • To investigate the longitudinal course of depressive symptoms in cardiac patients.

Main Methods:

  • A cohort of 785 patients was monitored for depressive symptoms using the Center for Epidemiological Studies Depression Scale at baseline, 3, and 12 months.
  • Multinomial regression analysis was employed to identify predictors of 12-month depression from baseline variables.

Main Results:

  • Depression during the index cardiac admission, a history of emotional health problems, and current smoking were significant predictors of moderate to severe depression at 12 months.
  • Over half (51%) of patients depressed during hospitalization remained depressed at both 3 and 12 months.
  • Persistence of depression was more pronounced in patients with moderate to severe depressive symptoms during hospitalization.

Conclusions:

  • Three readily identifiable factors at hospitalization can predict 12-month depression risk in cardiac patients, aiding treatment decisions.
  • A substantial proportion of cardiac patients experience persistent depressive symptoms up to one year post-hospitalization.
  • Early identification and intervention for depression in cardiac patients are warranted.
Abstract

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