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Blood Lead Testing and Follow-up Testing Among Children Hospitalized for Lead Poisoning
Yeh-Hsin Chen1, Zhen-Qiang Ma1, Krista P Davis1
1Bureau of Epidemiology.
Insights
Severe childhood lead poisoning incurs significant costs. Many hospitalized children lacked adequate blood lead testing and follow-up, highlighting a need for improved lead poisoning prevention strategies.
Area of Science:
- Pediatric Health
- Environmental Health
- Public Health Policy
Background:
- Childhood lead poisoning poses serious health risks and economic burdens in the US.
- Hospitalization for lead poisoning affects young children, particularly those from disadvantaged socioeconomic backgrounds.
- Effective lead exposure prevention requires timely diagnosis and appropriate medical interventions.
Purpose of the Study:
- To characterize sociodemographic and hospitalization patterns of children hospitalized for lead poisoning.
- To evaluate the prevalence of pre-hospitalization blood lead testing and follow-up among these children.
- To identify disparities in testing and follow-up care.
Main Methods:
- Utilized Pennsylvania hospital discharge data (2015-2021) linked with lead surveillance data.
- Analyzed demographic, hospitalization, and lead testing information for children aged 0-5 years with lead poisoning diagnoses.
- Examined hospitalization rates, length of stay, charges, and testing/follow-up proportions.
Main Results:
- 93 children were hospitalized for lead poisoning, with substantial inpatient costs ($6 million).
- Hospitalized children were predominantly male (69.9%), young (67.7% aged 0-2 years), and covered by Medicaid (88.2%).
- A significant proportion lacked pre-hospitalization lead testing (20.4%) or appropriate follow-up (65.6%).
Conclusions:
- Severe childhood lead poisoning represents a considerable public health and economic challenge, disproportionately affecting children with Medicaid.
- Gaps in blood lead testing and follow-up care before hospitalization indicate critical areas for intervention.
- Enhancing lead testing and follow-up protocols is crucial for preventing severe childhood lead poisoning.
Background And Objectives:
US children experience lead poisoning, which has detrimental health effects and significant individual and societal costs. This study aimed to describe the sociodemographic and hospitalization characteristics of children hospitalized for lead poisoning and assess the proportion of inpatients who received blood lead testing and appropriate follow-up testing before hospitalization.
Methods:
2015-2021 hospital discharge data were linked to lead surveillance data for Pennsylvania children aged 0 to 5 years. Demographics, hospitalization characteristics, and lead testing data from children with a primary diagnosis code of lead poisoning were used. The number of hospitalizations, associated hospital length of stay and charges, and the proportion of inpatients who received lead testing and follow-up testing after identification of high blood lead levels before hospitalization were analyzed by selected characteristics.
Results:
During the study period, there were 93 children hospitalized for lead poisoning, incurring 443 inpatient days and approximately 6 million dollars in inpatient charges. Of these inpatients, 69.9% were males, 36.6% were non-Hispanic Black, 67.7% were aged 0 to 2 years, 14% had repeated admissions, and 88.2% of admissions were paid by Medicaid. In addition, 20.4% did not have lead testing, and 34.4% had appropriate follow-up testing before hospitalization. Non-Hispanic whites and children with developmental, behavioral, and emotional disorders had relatively low proportions of having appropriate follow-up testing.
Conclusions:
Severe childhood lead poisoning is a significant health and economic burden, especially among children with Medicaid. Further improvements in blood lead testing and follow-up testing can help prevent childhood lead poisoning.
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