The Association between Cholesterol and Mortality

Authors

  • Wenjie Sun

Abstract

Objective: To investigate the association between total cholesterol and mortality and examined whether the association varied by health status in elderly Chinese
Methods: The multivariable Cox regression was used to examine the adjusted total cholesterol with all-cause mortality by health status in a population-based cohort study. Confounders including age, sex, education, ever drinking alcohol, ever smoking, monthly personal expenditure, housing, and body mass index (BMI)
Results: Cholesterol was significantly positive associated with the CHD mortality (HR= 1.12, 95%CI 1.04-1.21), but negative associated with all-cause (HR=0.91 95%CI 0.89-0.94) and non-CVD mortality, such as cancer and respiratory disease mortality. The association of total cholesterol with all-cause mortality varied by baseline health status (5 categories) (P=0.01). Higher cholesterol is associated with significant decreased all-cause mortality in unhealthy but not health people.
Conclusions: The cholesterol-death association was positive for coronary heart disease but not other cardiovascular diseases, and inverse for cancer, respiratory diseases in both sexes. It appeared to benefit mainly older people in poor health. The harmful effect of cholesterol on mortality may have been overestimated in elderly people because of reverse causality. Lower TC might not an independent risk factor for increased mortality,

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Published

2025-12-10

Issue

Section

Medical