Related Experiment Video
Updated: Dec 17, 2025

Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses
Published on: August 30, 2018
Gradual decline in outpatient antibiotic prescriptions in paediatrics: A data warehouse-based 11-year cohort study
Leslie Grammatico-Guillon1,2, S Reza Jafarzadeh3, Emeline Laurent2,4
1Medical School and School of Public Health, Boston University, Boston, MA, USA.
Insights
Antibiotic prescriptions in children decreased by over 5% annually from 2007-2017. This decline was observed across common antibiotic classes and was more pronounced in children with comorbid conditions, highlighting effective antimicrobial stewardship.
Area of Science:
- Pediatric primary care
- Antimicrobial stewardship
- Public health surveillance
Background:
- Antibiotic (AB) resistance is a growing global concern.
- Understanding trends in pediatric antibiotic prescribing is crucial for effective antimicrobial stewardship.
- Primary care settings are significant contributors to overall antibiotic use.
Purpose of the Study:
- To describe trends in antibiotic prescriptions in children in primary care over an 11-year period.
- To analyze the evolution of pediatric outpatient antibiotic prescriptions using time-series analyses.
- To assess the impact of comorbid conditions on antibiotic prescribing patterns in children.
Main Methods:
- Retrospective cohort study utilizing a large data warehouse (Massachusetts Health Disparities Repository).
- Analysis of outpatient antibiotic prescriptions from 2007 to 2017.
- Time-series analyses, including annual percent change (APC), were used to assess prescription trends.
Main Results:
- Approximately 25,000 children were included, with 31,248 antibiotic prescriptions recorded.
- Younger children received more antibiotic prescriptions.
- Overall antibiotic prescriptions decreased by an average of 5.34% annually (APC = -5.34%).
- Penicillins (46%) and macrolides (28%) were the most frequently prescribed antibiotic classes.
- Children with comorbid conditions received significantly more antibiotics (30.3 vs 21.0 AB/100 child-years).
- Antibiotic prescribing declined more substantially in children with comorbid conditions.
Conclusions:
- Outpatient antibiotic prescribing in pediatrics demonstrated a gradual and consistent decline over the study period.
- Persistent prescription differences were noted across age groups, conditions, and indications.
- Routine care data warehouses facilitate automated surveillance, offering cost-effective tools for antimicrobial stewardship programs.
Aim:
To describe trends in antibiotic (AB) prescriptions in children in primary care over 11 years, using a large data warehouse.
Methods:
A retrospective cohort study assessed outpatient AB prescriptions 2007-2017, using the Massachusetts Health Disparities Repository. The evolution of paediatric outpatient AB prescriptions was assessed using time-series analyses through annual per cent change (APC) for the population and for children with or without comorbid condition.
Results:
About 25 000 children were followed in primary care with 31 248 AB prescriptions reported in the data warehouse. The youngest children had more AB prescriptions. Penicillins were prescribed most frequently (46%), then macrolides (28%). One third of children had comorbid conditions, receiving significantly more antibiotics (30.3 vs 21.0 AB/100 child-years, relative risk: 1.43, 95% CI: 1.40, 1.46). Overall AB prescription decreased over the period (APC = -5.34%, 95% CI: -7.10, -3.54), with similar trends for penicillins (APC = -5.49; 95% CI: -8.27, -2.62) and macrolides (APC = -6.46; 95% CI: -8.37, -4.58); antibiotic prescribing declined more in children with comorbid conditions.
Conclusion:
Outpatient AB prescribing decline was gradual and consistent in paediatrics over the period. Prescription differences persisted between age groups, conditions and indication. The availability of routine care data through data warehouse fosters the surveillance automation, providing inexpensive fast tools to design appropriate antimicrobial stewardship.
More Related Videos
Related Concept Videos
Pharmacokinetics in Pediatric Patients: Drug Excretion
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
Pharmacokinetics in Pediatric Patients: Drug Metabolism
Drug Dosing: Infants and Children
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion
Pharmacokinetics in Pediatric Patients: Drug Distribution

