Inappropriate Testing of Streptococcal Pharyngitis in Children Aged Below 3 Years: Application of Statistical Process...

Area of Science:

• Pediatric Medicine
• Infectious Diseases
• Quality Improvement

Background:

• Group A Streptococcus (GAS) testing in children under 3 years is often overused without clear indications.
• Inappropriate testing contributes to unnecessary antibiotic use and healthcare costs.
• Establishing clear guidelines and improving provider adherence are crucial for antibiotic stewardship.

Purpose of the Study:

• To implement and evaluate interventions aimed at increasing the appropriate ordering of Group A strep tests in patients under 3 years old.
• To improve provider adherence to clinical guidelines for GAS testing in young children.

Main Methods:

• A quality improvement project involving educational interventions, electronic medical record order modifications, and provider feedback.
• Retrospective and prospective data collection from 1163 patient visits.
• Utilization of proportional control charts to monitor provider testing behaviors and assess intervention impact.

Main Results:

• The percentage of appropriately ordered Group A strep tests increased significantly, from 13.7% to 37.8%.
• Proportional control charts demonstrated sustained improvement in appropriate testing over time.
• The interventions proved effective in modifying provider behavior regarding GAS testing.

Conclusions:

• The implemented interventions successfully enhanced appropriate Group A strep testing in young children, supporting antibiotic stewardship.
• These strategies are transferable to other areas of low-value diagnostic testing.
• Further research is needed on parental factors and specific intervention efficacy.