Personality as independent predictor of long-term mortality in patients with coronary heart disease
- PMID: 8618481
- DOI: 10.1016/s0140-6736(96)90007-0
Personality as independent predictor of long-term mortality in patients with coronary heart disease
Abstract
Background: Emotional distress has been related to mortality in patients with coronary heart disease (CHD), but little is known about the role of personality in long-term prognosis. We postulated that type-D personality (the tendency to suppress emotional distress) was a predictor of long-term mortality in CHD, independently of established biomedical risk factors.
Methods: We studied 268 men and 35 women with angiographically documented CHD, aged 31-79 years, who were taking part in an outpatient rehabilitation programme. All patients completed personality questionnaire at entry to the programme. We contacted them 6-10 years later (mean 7-9) to find out survival status. The main endpoint was death from all causes.
Findings: At follow-up, 38 patients had died; there were 24 cardiac deaths. The rate of death was higher for type-D patients than for those without type-D (23 [27%]/85 vs 15 [7%]/218; p < 0.00001). The association between type-D personality and mortality was still evident more than 5 years after the coronary event and was found in both men and women. Mortality was also associated with impaired left ventricular function, three-vessel disease, low exercise tolerance, and the lack of thrombolytic therapy after myocardial infarction. When we controlled for these biomedical predictors in multiple logistic regression analysis, the impact of type-D remained significant (odds ratio 4.1 [95% CI 1.9-8.8]; p = 0.0004). In this group of CHD patients, type-D was an independent predictor of both cardiac and non-cardiac mortality. Social alienation and depression were also related to mortality, but did not add to the predictive power of type-D.
Interpretation: We found that type-D personality was a significant predictor of long-term mortality in patients with established CHD, independently of biomedical risk factors. Personality traits should be taken into account in the association between emotional distress and mortality in CHD.
Comment in
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Negative emotions and coronary heart disease: getting to the heart of the matter.Lancet. 1996 Feb 17;347(8999):414-5. doi: 10.1016/s0140-6736(96)90004-5. Lancet. 1996. PMID: 8618478 No abstract available.
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