Is obesity an independent risk factor for coronary heart disease? Can scientific weight loss reduce the incidence rate?
Epidemiological Survey of Obesity and Coronary Heart Disease: Obesity is not only closely associated with coronary heart disease as an independent risk factor, but it also increases susceptibility to the disease by affecting other risk factors such as blood pressure and blood lipids.
1. As an Independent Risk Factor: Data from US life insurance and epidemiology indicate that obesity tends to increase the incidence of coronary heart disease. The Framingham study showed that obese individuals are twice as likely to develop heart failure and cerebral infarction as the general population. Univariate analysis shows a strong correlation between obesity and vascular disease. For both men and women, the incidence of cardiovascular disease gradually increases with relative weight gain.
Even without meeting the obesity criteria, weight gain increases the risk of cardiovascular disease. For every 1 kg increase in weight, the incidence of cardiovascular disease increases by 3.1%. For both men and women, weight gain after age 25 is independently positively correlated with the risk of cardiovascular disease.
2. Obesity Increases Other Risk Factors for Coronary Heart Disease
Obesity is a significant determinant of blood lipids and lipoproteins in adults. Studies have shown a positive correlation between obesity and LDL (lower lipid levels) and a negative correlation with HDL (higher lipid levels), especially HDL (higher cholesterol). The relationship between fat accumulation in obese individuals and the incidence of coronary heart disease is not fully understood. A possible explanation is that obese individuals consume excessive calories, leading to increased serum cholesterol and elevated blood pressure, which exacerbates atherosclerosis. These factors, combined with the independent effect of obesity itself, significantly increase the risk of coronary heart disease in obese individuals.
Research has found that the increased prevalence of obesity-mediated cardiovascular disease begins in childhood. It is emphasized that starting weight loss in early childhood to reduce hyperlipidemia and hyperlipoproteinemia occurring in childhood is of great significance for the prevention of coronary heart disease.
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