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Background: It is unclear whether age may influence the clinical expression of Infectious mononucleosis (IM), and therefore constitute a risk factor for hospitalization. The aim of the study was to verify the clinical profile of patients hospitalized for this cause varies substantially with age. Patients and methods: This is a retrospective case-control study, based on the collection of secondary data from 217 cases of IM admitted to a referral hospital between 1995-2008. We performed a comparative analysis of clinical profile by age. Results: The frequency of patients by age groups were 24 (23, 10.5%). The age range was from 0.2 to 78 years with a mean of 5 ± 2 years, 17 ± 4 and 33 ± 11 years, respectively. A typical or usual clinical profile (pharyngitis, fever and lymphadenopathy), was more common in children and adolescents than in adults: 77%, 76%, and 34.6% respectively (p 10 times normal), and total bilirubin in the blood were elevated more frequently in adults than in adolescents: 13.6% vs. 4.9%, P |
