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Published on: September 11, 2018
Screening for childhood lead poisoning: a cost-minimization analysis
D E Glotzer1, H Bauchner, K A Freedberg
1Department of Pediatrics, Boston City Hospital, MA 02118.
Insights
Venipuncture is the most cost-effective strategy for childhood lead poisoning screening. This method remains cheapest unless venipuncture costs triple that of capillary sampling, highlighting its economic advantage for national programs.
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.
Abstract:
Decision analysis was used to compare the costs of three screening strategies for childhood lead poisoning: (1) venipuncture; (2) capillary sample with venipuncture confirmation if the blood lead level is elevated; (3) stratification by risk, with venipuncture for high-risk children and capillary sample for low-risk children. Under baseline conditions, the cost of screening by the venipuncture, stratification, and capillary strategies is $22, $25, and $27, respectively. Venipuncture remains the least expensive strategy unless the cost of venipuncture is more than three times that of capillary sampling. The annual cost of a national lead screening program that uses a single venipuncture sample would be $352 million. Initial screening with a capillary sample would cost $432 million, 23% more than venipuncture.
