Screening for childhood lead poisoning: a cost-minimization analysis

Area of Science:

• Environmental Health
• Public Health Policy
• Pediatric Medicine

Background:

• Childhood lead poisoning is a significant public health concern.
• Effective screening strategies are crucial for early detection and intervention.
• Current screening methods vary in cost and efficiency.

Purpose of the Study:

• To compare the cost-effectiveness of three distinct screening strategies for childhood lead poisoning.
• To identify the most economical approach for large-scale lead screening programs.
• To inform public health policy regarding lead poisoning prevention.

Main Methods:

• Decision analysis modeling was employed to evaluate screening costs.
• Three strategies were compared: venipuncture, capillary sampling with confirmation, and risk-stratified sampling.
• Cost parameters were analyzed under baseline conditions and varying cost ratios.

Main Results:

• Venipuncture screening cost $22 per child, stratification $25, and capillary $27 under baseline conditions.
• Venipuncture remained the least expensive strategy unless its cost exceeded three times that of capillary sampling.
• A national program using venipuncture would cost $352 million annually, compared to $432 million for capillary screening.

Conclusions:

• Single venipuncture screening is the most cost-effective strategy for childhood lead poisoning.
• The economic advantage of venipuncture is substantial, even with potential increases in its cost.
• These findings support the implementation of venipuncture-based screening for national lead poisoning prevention efforts.