Cholesterol: should we screen all children or change the diet of all children

Area of Science:

• Cardiology
• Pediatrics
• Public Health

Background:

• Hypercholesterolaemia (high cholesterol) is a significant risk factor for coronary heart disease (CHD).
• Childhood hypercholesterolaemia can persist into adulthood, tracking with adult levels.
• Dietary interventions can lower plasma cholesterol and mitigate atherosclerosis development.

Purpose of the Study:

• To evaluate the justification for widespread childhood cholesterol screening.
• To assess the efficacy and implications of targeted screening for familial hypercholesterolaemia.
• To recommend appropriate dietary strategies for managing cholesterol in children.

Main Methods:

• Review of existing data on childhood cholesterol tracking into adulthood.
• Analysis of the risks and benefits of universal versus targeted screening approaches.
• Consideration of management, follow-up, and socio-economic factors of screening.
• Evaluation of dietary interventions for cholesterol reduction in children.

Main Results:

• Childhood cholesterol levels track into adulthood (r ≈ 0.6), but this alone doesn't justify universal screening.
• Targeted screening in families with familial hypercholesterolaemia is recommended, despite identifying only half of affected children.
• Dietary changes to lower plasma cholesterol are beneficial for the general population, including children over 2 years.
• Dietary modification does not require pre-screening and should be monitored for effects on growth and health.

Conclusions:

• Universal screening for childhood hypercholesterolaemia is not currently justified due to insufficient evidence on management implications.
• Targeted screening for familial hypercholesterolaemia in high-risk families is warranted.
• Population-wide dietary modification is a recommended strategy to manage cholesterol in children, with careful monitoring of health outcomes.