Abstract:
Objective To estimate the incidence of all-cause otitis media (OM) in children under 5 years old (under-5) in Suzhou city, Jiangsu province.
Methods From the Health Information System (HIS) of Soochow University Affiliated Children′s Hospital (SCH), we extracted outpatient visit and hospitalization records of local under-5 children (born from 2017 to the end of 2020) during the period from January 2017 through June 2021 for a retrospective cohort analysis. The children with the diagnosis of all-cause otitis media were followed up for the estimation of overall and age specific all-cause otitis media incidence among the children.
Results Among the 507 678 children followed-up during the 4-year period, 9 378 otitis media incidents of 7 903 children were identified, including 8 979 outpatient incidents and 399 hospitalizations. The overall incidence rate of otitis media was 6.37/1 000 person-years and the incidence rate was 6.10/1 000 person-years for outpatient children and 0.27/1 000 person-years for inpatient children, respectively. The incidence rate of otitis media was higher among the children aged 3 – 4.5 years and the highest incidence rate of 24.59/1 000 person-years was observed in the children aged 4 – 4.5 years. Higher otitis media incidence rate of 21.45/1 000 person-years was also observed for the children with allergic rhinitis and recurrent acute upper respiratory infections.
Conclusion The incidence rate of all-cause otitis media was low and influenced by age and other diseases among under-5 children in Suzhou city.
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