Key result
Type D personality is linked to a ~4-fold higher risk of MI.
Why the study?
The incidence of myocardial infarction is increasing in India, particularly among youth in Kerala, but studies assessing the association between psychological factors and MI are scarce in India.
Is Type D personality associated with an increased risk of myocardial infarction in adults?
Case-Control (n=300)
No
Is Type D personality associated with an increased risk of myocardial infarction in adults?
Odds Ratio: 4.14 (95% CI 2.19–8.85)
Absolute Event Rate: 50.7% vs 33.3%
p-value: p=0.001
Type D personality is significantly associated with a more than four-fold increased odds of myocardial infarction, highlighting the importance of psychosocial risk factors in cardiovascular disease.
BACKGROUND: Coronary heart disease (CHD) is an impending global pandemic in developed countries as well as developing countries and economies in transition, such as India. A significant increase in the incidence of myocardial infarction (MI), one of the most common types of CHD, is being reported in India, and the incidence and severity of the disease are more among the youth in Kerala. Studies assessing the association between psychological factors and MI are few in India. METHODS: We adopted a case-control study design. A total of 150 cases (with MI) and 150 controls (without MI and matched for age and gender) from a tertiary care hospital in Trivandrum, Kerala, India, were selected using convenient sampling method, between September 2016 and August 2017. RESULTS: As compared to 33.3% of the controls, 50.7% of patients with MI had type D personality characteristics. Multivariate logistic regression analysis after adjusting for the confounders indicated a positive and statistically significant association between type D personality and MI: OR = 4.14, 95% CI = 2.19-8.85, P = 0.003. CONCLUSION: Type D personality is associated with MI.
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Manoj et al. (2020) conducted a case-control in Myocardial Infarction (n=300). Type D personality vs. Non-type D personality was evaluated on Myocardial infarction (OR 4.14, 95% CI 2.19-8.85, p=0.001). Type D personality was associated with a significantly increased risk of myocardial infarction after adjusting for confounding factors (OR 4.14).
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