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Point-of-Care Testing Improves Lead Screening Rates at 1- and 2-Year Well Visits
Benjamin Carnahan1, Eric W Schaefer2, Benjamin N Fogel3
1Department of Family Medicine, University of Pittsburgh, Pittsburgh, PA.
Insights
Point-of-care (POC) lead screening significantly boosted blood lead level screening rates in children during well visits. This method proved more effective than provider education alone in primary care settings.
Area of Science:
- Pediatric Health
- Public Health Interventions
- Clinical Diagnostics
Background:
- Elevated blood lead levels in children pose significant health risks.
- Screening rates for blood lead levels in children often fall short of public health recommendations.
- Primary care settings are crucial for early detection and intervention.
Purpose of the Study:
- To enhance blood lead level screening rates in children at 12- and 24-month well visits.
- To evaluate the impact of provider education and point-of-care (POC) lead screening implementation.
- To assess screening improvements in primary care offices serving high-prevalence areas.
Main Methods:
- Provider education on screening guidelines and local lead prevalence.
- Implementation of a point-of-care (POC) lead screening program at one primary care site.
- Analysis of screening rates using electronic medical records and interrupted time series with logistic regression.
Main Results:
- Provider education resulted in a small but significant monthly increase in screening rates.
- Point-of-care (POC) testing led to a substantial immediate and continued increase in screening.
- The site implementing POC testing saw significant improvements in blood lead level screening.
Conclusions:
- Point-of-care (POC) lead screening substantially increases screening rates for children's blood lead levels.
- POC testing is a valuable tool for improving pediatric well-visit screenings.
- The POC approach may be beneficial in diverse primary care settings to enhance lead screening coverage.
Objective:
To increase blood lead level screening rates in children at 12- and 24-month well visits through provider education and the implementation of a point-of-care (POC) lead screening program in 4 primary care practice offices located in and neighbored by counties with ≥5% prevalence of blood lead levels ≥5 μg/dL.
Study Design:
Baseline data were collected July 2017 to June 2018. All providers received education on screening recommendations and local prevalence of elevated blood lead levels in July 2018. POC testing began June 2019 at 1 of the 4 practice sites. Screening rates were measured by electronic medical record abstraction. Rates were plotted monthly on statistical process control charts during implementation and analyzed using logistic regression under an interrupted time series approach for program evaluation.
Results:
There was a small but significant increase in screening following provider education (OR 1.04 per month, 95% CI 1.02-1.07). POC testing was associated with a substantial immediate increase (OR 4.17, 95% CI 2.45-7.09) and a substantial continued increase (OR 1.34 per month, 95% CI 1.17-1.54) in screening at the site that implemented POC.
Conclusions:
POC testing substantially increases blood lead level screening rates at 12- and 24-month well visits and may be beneficial in other primary care settings.
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