Prognosis of Acute Otitis Media. Factors Associated with the Development of Recurrent Acute Otitis Media

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Abstract
Clinical factors associated with the development of recurrent acute otitis media (RAOM) (23 recurrences during 6 months' follow-up period) after acute otitis media (AOM) were analysed in 121 children aged 3 months to 7 years (median 2 years 6 months). After AOM, 19 (16%) children had primary recurrence (pre-treatment signs and symptoms firstly improved or cured, but worsened or recurred within 30 days' post-treatment) and 33 (27%) developed RAOM during 6 months' follow-up period. It seemed that children <2 years of age (p = 0.04), children with bilateral disease (p = 0.007), strong infection status (p = 0.05), primary clinical failure (p = 0.04) and development of primary recurrence after AOM (p = 0.001) were significantly related to the development of RAOM in univariate analysis, but only children <2 years of age (OR 1.5, 95% Cl 1.0–5.7, p = 0.04) and the development of primary recurrence (OR 5.1, 95% Cl 1.8–14.1, p = 0.002) related to the development of RAOM in multivariate analysis. None of the bacteria cultured from middle ear effusion were related to the development of RAOM.

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