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Psychosom Med. 1999 Jan-Feb;61(1):26-37.

Gender, depression, and one-year prognosis after myocardial infarction.

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1
Research Center, Montreal Heart Institute, Quebec, Canada. frsm@icm.umontreal.ca

Abstract

OBJECTIVE:

The purpose of this study was to assess gender differences in the impact of depression on 1-year cardiac mortality in patients hospitalized for an acute myocardial infarction (MI).

METHODS:

Secondary analysis was performed on data from two studies that used the Beck Depression Inventory (BDI) to assess depression symptoms during hospitalization: a prospective study of post-MI risk and a randomized trial of psychosocial intervention (control group only). The sample included 896 patients (283 women) who survived to discharge and received usual posthospital care. Multivariate logistic regression analysis was used to assess the risk of 1-year cardiac mortality associated with baseline BDI scores.

RESULTS:

There were 290 patients (133 women) with BDI scores > or =10 (at least mild to moderate symptoms of depression); 8.3% of the depressed women died of cardiac causes in contrast to 2.7% of the nondepressed. For depressed men, the rate of cardiac death was 7.0% in contrast to 2.4% of the nondepressed. Increased BDI scores were significantly related to cardiac mortality for both genders [the odds ratio for women was 3.29 (95% confidence interval (CI) = 1.02-10.59); for men, the odds ratio was 3.05 (95% CI = 1.29-7.17)]. Control for other multivariate predictors of mortality in the data set (age, Killip class, the interactions of gender by non-Q wave MI, gender by left ventricular ejection fraction, and gender by smoking) did not change the impact of the BDI for either gender.

CONCLUSIONS:

Depression in hospital after MI is a significant predictor of 1-year cardiac mortality for women as well as for men, and its impact is largely independent of other post-MI risks.

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PMID:
10024065
[Indexed for MEDLINE]
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