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Hospital Variations and Temporal Trends in Procalcitonin Use for Patients With Bronchiolitis
Kathryn Bakkum1,2, Jonathan Pelletier3,2, Prabi Rajbhandari1,4,2
1Divisions of Hospital Medicine.
Insights
Procalcitonin (PCT) testing for bronchiolitis increased 14-fold from 2016 to 2022. However, this rise in PCT use did not correlate with reduced antibiotic prescriptions in pediatric patients.
Area of Science:
- Pediatric infectious diseases
- Clinical diagnostics
- Healthcare economics
Background:
- Bronchiolitis hospitalizations incur significant costs exceeding $700 million annually in the US.
- Procalcitonin (PCT) testing is gaining traction in pediatrics, showing potential for reducing antibiotic use in various conditions.
- The study investigates the utilization trends of PCT in pediatric bronchiolitis cases.
Purpose of the Study:
- To assess the trends in Procalcitonin (PCT) testing for bronchiolitis in infants.
- To determine if increased PCT utilization correlates with changes in antibiotic prescribing or hospitalization rates.
- To hypothesize an annual increase in PCT testing for bronchiolitis.
Main Methods:
- A multicenter, retrospective cross-sectional study was conducted using the Pediatric Health Information Systems database.
- Infants aged 2-23 months diagnosed with bronchiolitis between 2016 and 2022 were analyzed.
- Statistical analyses, including chi-squared and Wilcoxon rank-sum tests, were used to compare encounters with and without PCT testing, alongside Spearman's rho for trend analysis.
Main Results:
- Over 366,000 bronchiolitis encounters were reviewed, with PCT testing performed in 1.5% of cases.
- PCT usage surged over 14-fold from 2016 (0.2%) to 2022 (2.8%), with significant year-over-year increases.
- Hospital-level PCT use did not show a significant association with admission rates (P = .42) or antibiotic administration (P = .06).
Conclusions:
- Procalcitonin (PCT) testing for bronchiolitis saw a substantial 14-fold increase between 2016 and 2022.
- The rise in PCT testing was not linked to a decrease in antimicrobial prescriptions for bronchiolitis.
- Further research is required to establish the diagnostic value and clinical utility of PCT in managing pediatric bronchiolitis.
Background And Objective:
The financial burden of bronchiolitis-related hospitalizations in the United States surpasses $700 million annually. Procalcitonin (PCT) has garnered recent interest in pediatrics and has demonstrated the potential to decrease antibiotic usage in other illnesses. This study assessed PCT utilization trends in bronchiolitis, hypothesizing an annual increase in PCT testing.
Methods:
We conducted a multicenter, retrospective cross-sectional study utilizing the Pediatric Health Information Systems database. Infants aged 2 to 23 months presenting with bronchiolitis from January 1, 2016, to December 31, 2022, were included. Encounters with and without PCT testing were compared using χ2 testing and Wilcoxon rank-sum testing as appropriate. Temporal trends in PCT testing and correlations with hospital-level proportions of PCT use, antibiotic administration, and admission proportion were assessed using Spearman's ρ.
Results:
There were 366 643 bronchiolitis encounters among 307 949 distinct patients across 38 hospitals during the study period. Of those, 1.5% (5517 of 366 643) had PCT testing performed. PCT usage increased more than 14-fold between 2016 and 2022 (0.2% in 2016 vs 2.8% in 2022, ρ > 0.99, P < .001). PCT use ranged from 0.01% to 8.29% across hospitals. The hospital-level proportion of PCT testing was not associated with admissions (ρ = 0.13, P = .42) or antibiotic use (ρ = 0.31, P = .06).
Conclusions:
PCT testing in patients with bronchiolitis increased 14-fold between 2016 and 2022 and was not associated with decreased antimicrobial prescriptions. Further studies are needed to determine the diagnostic yield of PCT in bronchiolitis.
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