Acute otitis media, antimicrobial prescriptions, and medical expenses among children in the United States during 2011–2016
INTRODUCTION: We analyzed outpatient visits, incidence, antimicrobial prescriptions, and medical expenditures for acute otitis media (AOM) in the United States during 2011-2016. METHODS: Data sources included the National Disease and Therapeutic Index (NDTI™) projections by IQVIA (for AOM cases), The Medical Expenditure Panel Survey (for medical expenditures) and the US Census (for population estimates). Analyses focused on children aged ≤9 years between 2011 and 2016. We used the 2014 medical expenditure estimate per otitis media episode ($520) as proxy for all years. RESULTS: In 2011, there were an estimated 11.5 million AOM episodes in children aged 0-9 years in the US with AOM incidence rates (IR) of 476, 204, and 284 episodes per 1000 children aged 0-2, 3-9, and 0-9 years, respectively. All subsequent years had lower IRs, and by 2016, IR was 25.1% lower than in 2011 in children 0-9 years. In addition, there were estimates of 10.8 million and 9.2 million fewer cumulative AOM episodes and antimicrobial prescriptions for AOM nationwide between 2012 and 2016, compared to annual 2011 estimates, representing a ∼$5.6 billion decrease in direct medical expenditures. The average number of antibiotic prescriptions per AOM visit remained stable with 0.89 and 0.86 prescriptions per visit in 2011 and 2016, respectively. CONCLUSIONS: AOM incidence, antimicrobial prescriptions, and associated medical expenses decreased substantially between 2011 and 2016 in the United States. Antimicrobial prescribing practices remain unchanged. Additional studies are warranted to assess causality.