Abstract
Rotavirus is a major burden on the Spanish Healthcare System. Rotarix® and RotaTeq® were simultaneously commercialized in Spain by February, 2007. The objective is to analyze the incidence and seasonality of rotavirus hospitalizations (RH) in Castile-La Mancha (CLM), following the first 3 y of commercialization. A cross-sectional study of the hospital discharge registry's Minimum Basic Data Set (MBDS) in CLM between 2003 and 2009 was performed. We used the Poisson regression model to quantify the percentage of change in the rotavirus incidence rate (IR) for 2007–09 vs. 2003–05, adjusting for age, sex, and province. To analyze changes between epidemic seasons the chi-square test was used. The median IR in 2003–09 was 224.71 per 105 [interquartile range (IQR): 185.24–274.70], which represents 60% of hospital admissions due to infectious acute gastroenteritis. The median rate in 2007–09 decreased [incidence rate ratio (IRR): 0.86, 95% CI: 0.78–0.96], significantly in Toledo (IRR: 0.54, 95% CI: 0.39–0.75). An incipient decline at the beginning of the last cold season was observed, preceded by a significant decrease of 68% in the autumn season of 2009. Despite its limited coverage, the rotavirus vaccine may have contributed to decrease RH in CLM.
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