Seroprevalence of Measles Antibodies and Predictors for Seropositivity among Chinese Children

Xiaoqin Wang, Mei Ma, Zhaozhao Hui, Paul D. Terry, Yue Zhang, Rui Su, Mingxu Wang, Wei Gu and Ling Li
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Xiaoqin Wang: Department of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China
Mei Ma: Department of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China
Zhaozhao Hui: Department of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China
Paul D. Terry: Department of Medicine, University of Tennessee Medical Center, Knoxville, TN 37920, USA
Yue Zhang: Department of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China
Rui Su: Center for Disease Control and Prevention in Qian County, Xianyang 713300, China
Mingxu Wang: Department of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China
Wei Gu: Department of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China
Ling Li: Department of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China

IJERPH, 2017, vol. 14, issue 6, 1-8

Abstract: Background : Supplementary measles immunization has been implemented since 2010 throughout China, yet few studies have reported its effect in the northwest regions. Methods: A cross-sectional study was conducted among children aged 2 to 4 years old ( n = 755) from February to September 2014 in 25 towns of Qian County, Shaanxi Province. Blood samples were analyzed for measles antibodies using enzyme-linked immunosorbent immunoglobulin G (IgG) assays. Socio-demographic factors were assessed by questionnaire. Data on vaccine dose were collected from town medical records. Univariate and logistic regression analyses were used to determine factors associated with measles antibody seropositivity. Results : Measles antibody seroprevalence was 91.13% (95% CI: 89.52–92.83) in our sample. Compared with children whose mother’s highest education was primary school, seroprevalence was higher in children whose maternal education was middle school (adjusted OR: 1.4, 95% CI: 0.7–2.8), high school (adjusted OR: 2.4, 95% CI: 1.3–7.7), and college/university (adjusted OR: 2.9, 95% CI: 1.2–9.3). Vaccine dose was positively associated with seropositivity. Conclusions : Measles seroprevalence is high in China and is associated with the mother’s education and vaccine dose.

Keywords: seroprevalence; measles; vaccine dose; predictor (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2017
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