Epidemiological factors related to hospitalization due to influenza in children below 6 months of age
European Journal of Pediatrics Sep 01, 2017
Bustamante J, et al. – This report highlighted the epidemiological factors associated with hospital admissions due to influenza in infants younger than 6 months. The specialists suggested the importance of increasing influenza immunization among household contacts of infants below 6 months in order to prevent their influenza admission.
- This study was conducted in a tertiary hospital in Spain.
- This study included infants under 6 months of age without comorbidities who were admitted due to influenza between October 2010 and March 2015.
- Controls were healthy infants younger than 6 months who were hospitalized due to non–respiratory illness or non–infectious diseases (urinary tract infection was included as controls).
- From medical records and phone interviews, data were gathered.
- In total, 88 cases and 122 controls were enrolled.
- From univariate analysis, differences were found in relation to maternal age (43.1 ± 4.95 vs 32 ± 5.3), paternal age (37 ± 6.4 vs 34.5 ± 6.1), having siblings (79 vs 24%), siblings below 4 years old (54 vs 15%), and having vaccinated grandparents (18 vs 39%) (p < 0.05).
- After logistic regression, having vaccinated grandparents was an independent protective factor (OR 0.22 [CI95%; 0.05Â0.91]), while having siblings was a risk factor (OR 15.8 [CI95% 3.15Â79.5]).
- Vaccination during pregnancy was highly uncommon (3.5 vs 8.3%;p = 0.3).
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