The change of prevalence and recurrence of acute otitis media in Korea

Acute otitis media (AOM) is the most common infectious disease in infants and children. However, there have been few studies on the recent prevalence and trends of pediatric AOM in Korea. This study aimed to evaluate the prevalence and trends of pediatric AOM in Korea. The data for patients with AOM in 2012, 2015, and 2017 were extracted from the Health Insurance Review and Assessment Service's Big Database. The prevalence rate, recurrence rate, and data on gender, region, month, and medical facilities of AOM were evaluated. The prevalence rate (per 1000 persons) decreased from 152.7 in 2012 to 137.4 in 2017. The recurrence rate declined from 34.0% in 2012 to 28.2% in 2015. In 2015, the recurrence rate of 0–2 years group decreased significantly. In 2017, the prevalence of AOM of 3–6 years group decreased the most. The prevalence is higher in urban areas and recurrence rate is higher in rural areas. But those are no significant difference. AOM is more common in male, mainly in winter and spring. The prevalence and recurrence rate of pediatric AOM in Korea are gradually decreasing. The decrease of prevalence resulted from declination in AOM recurrence of 0–2 years group in 2015 and AOM occurrence of 3–6 years group in 2017.