The presence of a depressive episode predicts lower return to work rate after myocardial infarction

Context

No studies have evaluated whether the presence of a depressive episode is associated with an increased risk of not returning to work following myocardial infarction (MI).

Objectives

To examine the prospective associations between depressive episode and anxiety disorders with return to work (RTW) after MI at 3 and 12 months based on International Classification of Diseases, 10th Revision.

Design

Prospective cohort study.

Setting

Four hospitals in the North of The Netherlands.

Participants

From a sample of patients hospitalized for MI (n= 487), we selected those who had a paid job at the time of the MI (N= 200).

Main exposure measures

Presence of a depressive episode and presence of any anxiety disorder during the first 3 months post-MI.

Main outcome measures

RTW at 12 months post-MI.

Results

Of the patients with work prior to MI, 75% had returned to work at 12 months. The presence of a depressive episode during the first 3 months (prevalence: 19.4%) was a significant predictor of no RTW at 12 months post-MI, also after controlling for confounders [odds ratio (OR) 3.48; 95% confidence interval (CI): 1.45–8.37]. The presence of an anxiety disorder (prevalence: 11.9%) had a borderline significant association with no RTW as well. This association remained after controlling for confounders (OR 2.90; 95% CI: 1.00–6.38) but diminished when controlling for depression.

Conclusions

The presence of a depressive episode was associated with an increased risk of no RTW in MI patients. The association between anxiety and risk of no RTW could in part be explained by the presence of depression. Further studies may address the possibility of countering the effect of depression by effective treatment.