Related Experiment Videos
[Prospective study of mortality among women and its relation to the main risk factors]
Insights
Cardiovascular disease mortality in women is predicted by elevated LDL cholesterol and triglycerides, not hypertension. Low body weight offers protection, while low cholesterol may indicate cancer risk.
Area of Science:
- Cardiovascular epidemiology
- Public health research
- Risk factor analysis
Context:
- Prospective study of females aged 20-69 in Leningrad district.
- Investigated predictors of cardiovascular disease (CVD) mortality.
- Assessed the role of basic CVD risk factors.
Purpose:
- To evaluate key risk factors for cardiovascular disease (CVD) mortality in females.
- To identify significant predictors of death from CVD in the studied population.
Summary:
- Arterial hypertension was not a significant CVD mortality risk factor in females.
- Elevated low-density lipoprotein (LDL) cholesterol (risk ratio 3.6) was the primary predictor, followed by triglycerides (1.88) and total cholesterol (1.7).
- Low body weight acted as a protective factor; low cholesterol levels were not associated with existing tumors but showed increased cancer mortality over time.
Impact:
- Findings highlight specific lipid fractions as critical CVD risk factors in women.
- Suggests a complex, U-shaped relationship between total cholesterol and CVD mortality.
- Identifies low body weight as a protective factor, warranting further investigation.
Abstract:
The data obtained in the prospective study of females aged 20-69 years in one of the Leningrad districts made in possible to assess the role of basic risk factors of cardiovascular diseases (CCV) as predictors of death. For females, arterial hypertension was not found to be a significant risk factor for CCV mortality. Among lipid fractions, elevated levels of low density lipoprotein (LDL) cholesterol was demonstrated to hold the lead (the risk ratio, 3.6), high levels of triglycerides occupied the second place (the risk ratio, 1.88, and the content of total cholesterol occupied the third place (the risk ratio, 1.7). Low body weight was the major protective factor in females. Following 5 years of the primary survey, the cumulative cancer mortality continued to increase in individuals having low cholesterol levels, which opposes the supposition that low cholesterol concentrations are a marker of an existing tumor process. The CCV mortality-total cholesterol level relationship was demonstrated to be prone to u-dependence, i.e. a deviation from average cholesterol levels towards the both directions is an unfavorable factor and requires that a clinicist be more careful.