ArticleHuman vaccines & immunotherapeutics2021
Effectiveness of one-dose versus two-dose varicella vaccine in children in Qingdao, China: a matched case-control study.
Article in Human vaccines & immunotherapeutics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
18 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.
- Varicella Vaccine Effectiveness and Duration of Protection: A Systematic Review and Meta-Analysis.Journal of Korean medical science · 2025Pooled it
- Impact of the two-dose varicella vaccination recommendation program and surveillance optimization on epidemiological trends in a megacity in China.Human vaccines & immunotherapeutics · 2026Article
- The effect of mumps vaccine on the incidence of mumps in Hefei: An interrupted time-series analysis.Human vaccines & immunotherapeutics · 2025Article
- Analysis and comparison of chickenpox outbreaks in two schools at different educational stages: a mixed retrospective observational study.BMC infectious diseases · 2025Observational
- Article
- Effectiveness of a 2-dose varicella vaccination program in Changzhou, China, during the transitional period (2017-2022): a registry-based case-cohort study.BMC public health · 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
- Varicella vaccine effectiveness evaluation in Wuxi, China: A retrospective cohort study.Epidemiology and infection · 2024Article
- An analysis of risk factors for visceral disseminated varicella in children.Frontiers in pediatrics · 2024Article
- Effectiveness of two-dose vs. one-dose varicella vaccine in children in Shanghai, China: a prospective cohort study.Frontiers in public health · 2024Article
- Seroprevalence rates in children aged 3-6 years after implementing a two-dose varicella vaccination: A observational study.Human vaccines & immunotherapeutics · 2023Observational
- Real-World Effectiveness of the Varicella Vaccine among Children and Adolescents in Qatar: A Case-Control Study.Vaccines · 2023Article
- Analysis on the epidemiological characteristics of varicella and breakthrough case from 2014 to 2022 in Qingyang City.Human vaccines & immunotherapeutics · 2023Article
- Assessing vaccine effectiveness for varicella in Wuxi, China: a time-series analysis.Annals of medicine · 2023Article
- Evaluating the impact of universal varicella vaccination among preschool-aged children in Qingdao, China: An interrupted time-series analysis.Human vaccines & immunotherapeutics · 2022Article
- Epidemiological Characteristics of Varicella under Different Immunisation Strategies in Suzhou Prefecture, Jiangsu Province.Vaccines · 2022Article
- Vaccine Coverage and Effectiveness in a School-Based Varicella Outbreak in Jinan Prefecture, Shandong Province.Vaccines · 2022Article
- Long-term vaccine efficacy of a 2-dose varicella vaccine in China from 2011 to 2021: A retrospective observational study.Frontiers in public health · 2022Observational
Corrections and comments
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Authors and funding
9 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To evaluate whether two-dose of varicella vaccine would provide a better protection to children from varicella than one-dose, we conducted a 1:3 matched case-control study in children in Qingdao, China. A total of 509 varicella cases aged 6-11 y were collected from the China Information System for Disease Control and Prevention (CISDCP). And 1,527 controls, who did not suffer from varicella, were selected and matched with cases by age and class. The varicella vaccine effectiveness (VE) and corresponding 95% confidence interval (95% CI) were calculated. The vaccination coverage rate of one-dose varicella vaccine in the cases was 52.9%, while for the controls was 59.1%. And the two-dose vaccination rate in the cases and controls were 4.3% and 14.5%, respectively. A statistically significant difference was found in the immunization history between the cases and controls (
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.