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Objective: To assess the effect of individual compared to clinic-level feedback on guideline-concordant care for 3 acute respiratory tract infections (ARTIs) among family medicine clinicians caring for pediatric patients. Design: Cluster randomized controlled trial with a 22-month baseline, 26-month intervention period, and 12-month postintervention period. Setting and participants: In total, 26 family medicine practices (39 clinics) caring for pediatric patients in Virginia, North Carolina, and South Carolina were selected based upon performance on guideline-concordance for 3 ARTIs, stratified by practice size. These were randomly allocated to a control group (17 clinics in 13 practices) or to an intervention group (22 clinics in 13 practices). Interventions: All clinicians received an education session and baseline then monthly clinic-level rates for guideline-concordant antibiotic prescribing for ARTIs: upper respiratory tract infection (URI), acute bacterial sinusitis (ABS), and acute otitis media (AOM). For the intervention group only, individual clinician performance was provided. Results: Both intervention and control groups demonstrated improvement from baseline, but the intervention group had significantly greater improvement compared with the control group: URI (odds ratio [OR], 1.62; 95% confidence interval [CI], 1.37–1.92; P < 0.01); ABS (OR, 1.45; 95% CI, 1.11–1.88; P < 0.01); and AOM (OR, 1.59; 95% CI, 1.24–2.03; P < 0.01). The intervention group also showed significantly greater reduction in broad-spectrum antibiotic prescribing percentage (BSAP%): odds ratio 0.80, 95% CI 0.74-0.87, P < 0.01. During the postintervention year, gains were maintained in the intervention group for each ARTI and for URI and AOM in the control group. Conclusions: Monthly individual peer feedback is superior to clinic-level only feedback in family medicine clinics for 3 pediatric ARTIs and for BSAP% reduction. Trial registration: ClinicalTrials.gov identifier: NCT04588376, Improving Antibiotic Prescribing for Pediatric Respiratory Infection by Family Physicians with Peer Comparison.

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