ArticleHuman vaccines & immunotherapeutics2022
Evaluating the impact of universal varicella vaccination among preschool-aged children in Qingdao, China: An interrupted time-series analysis.
Article in Human vaccines & immunotherapeutics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- The effect of mumps vaccine on the incidence of mumps in Hefei: An interrupted time-series analysis.Human vaccines & immunotherapeutics · 2025Article
- High coverage with delayed doses: Cross-sectional study of parental acceptance and uptake of varicella vaccination in children aged 4-12 years in Chaoyang District, Beijing.Human vaccines & immunotherapeutics · 2025Article
- The impact of the implementation of the two-dose varicella vaccine immunization strategy in Quzhou: A retrospective birth cohort study.Human vaccines & immunotherapeutics · 2024Article
- Impact of implementing a free varicella vaccination policy on incidence in Wuxi City, China: an interrupted time series analysis.Epidemiology and infection · 2023Article
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5 authors.
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Abstract
Varicella is a contagious disease of children. Qingdao administrated free one-dose and free two-dose universal varicella vaccination schedules in 2013 and 2016 for preschool children. The effectiveness of the vaccination was analyzed in this study. Monthly varicella incidence data of 1-6 years old children during 2007-2020 were obtained from the Qingdao Infectious Disease Reporting Information Management System. We applied Interrupted time series and segmented regression analyses to assess changes in varicella incidence at the beginning of each month and average monthly changes during the vaccination. The vaccination was associated with a reduction of 32.7% in varicella morbidity on average during the 8-year intervention, there is a statistically significant difference between the voluntary period and free vaccination period (χ
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