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http://dx.doi.org/10.14776/kjpid.2014.21.3.181

The Epidemiological Trend of Rotavirus Gastroenteritis in Children in a Single Center from 2004 to 2012: A Retrospective Study  

Lee, Hae Sung (Department of Pediatrics, KEPCO Medical Foundation KEPCO Medical Center)
Kim, Dong Yeon (Department of Pediatrics, KEPCO Medical Foundation KEPCO Medical Center)
Kim, Jung Are (Department of Pediatrics, KEPCO Medical Foundation KEPCO Medical Center)
Choi, Soo-Han (Department of Pediatrics, KEPCO Medical Foundation KEPCO Medical Center)
Publication Information
Pediatric Infection and Vaccine / v.21, no.3, 2014 , pp. 181-190 More about this Journal
Abstract
Purpose: This study was performed to investigate the epidemiological trend of rotavirus acute gastroenteritis (RV-AGE) in children. Methods: A retrospective review was performed in patients (1 month to 18 years of age) with acute gastroenteritis at KEPCO Medical Center from September 2004 to August 2013. Comparative analyses were performed based on periods: pre-vaccine (2004-2006) and post-vaccine (2008-2012) in all patients; 2004-2006 (period A), 2007-2009 (period B) and 2010-2012 (period C) in patients under 5 years of age. Results: Proportion of RV-AGE decreased from 25.0% (337/1,346) in pre-vaccine period to 20.8% (459/2,210) in post-vaccine period (rate ratio (RR), 0.83 [95% CI, 0.73-0.93]; P=0.0029). The median age of patients with RV-AGE in post-vaccine period (2.6 years) was significantly (P<0.0001) higher than that in pre-vaccine period (1.6 years). In patients hospitalized with AGE, proportion of RV-AGE was significantly reduced in patients 6 to 23 months old (RR, 0.62 [95% CI, 0.51-0.75]; P<0.0001). Significant decline in proportion of RV-AGE was observed in patients under 5 years of age: period A, 26.9% (308/1,144); period B, 22.7% (295/1,299); period C, 20.6% (186/902) (P =0.0007). After the introduction of rotavirus vaccine, a significant decreasing trend of RV-AGE proportion was observed in patients 6 to 11 months old (P =0.0018) and 12 to 23 months old (P =0.0152). Conclusion: Decrease in RV-AGE proportion and increase in age of patients with RV-AGE were observed after the introduction of rotavirus vaccine in this single center study. Continued and systematic surveillance is needed to assess the impact of rotavirus vaccine.
Keywords
Rotavirus Infections; Rotavirus Vaccines; Epidemiology; Child;
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