Vaccination completion rate in early childhood and risk factors of incomplete vaccination

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  • Kawai Takumi
    Department of Community and Family Medicine, Fukushima Medical University School of Medicine Department of Public Health, Fukushima Medical University School of Medicine
  • Goto Aya
    Department of Public Health, Fukushima Medical University School of Medicine
  • Watanabe Eiko
    Health Promotion Division, Fukushima City
  • Nagasawa Machiko
    Health Promotion Division, Fukushima City
  • Kanari Yumiko
    Department of Public Health, Fukushima Medical University School of Medicine Ken-poku Public Health and Welfare Office, Fukushima Prefectural Government
  • Yasumura Seiji
    Department of Public Health, Fukushima Medical University School of Medicine

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Other Title
  • 乳幼児の定期予防接種完了率と未完了のリスク要因
  • ニュウヨウジ ノ テイキ ヨボウ セッシュ カンリョウリツ ト ミカンリョウ ノ リスク ヨウイン

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Abstract

Introduction: Epidemiologic evidence on childhood vaccination is scarce in Japan. Our aim was to investigate the vaccination completion rate and risk factors of incomplete vaccination. <br>Methods:This study was a secondary analysis of the database developed for a childhood infection study of 2368 attendants of 18-month health checkups in one city in Japan. The data of vaccination history included bacillus Calmette-Guérin, diphtheria-pertussis-tetanus, measles-rubella, and polio. A total of 1622 children were included in analyses after 746 were excluded because a large portion of their data was missing, and because their birthweight was <2500 g or their gestational age, <37 weeks. <br>Results:The overall vaccine completion rate was 79.3%. The factors significantly associated with incomplete vaccination by multivariate logistic analysis were two or more children living together, child care attendance, parents’ smoking habits and absence of exclusive breastfeeding at 4-month health checkups. As the number of risk factors for hospital admission due to infections increased, the vaccine completion rate tended to decrease. <br>Conclusion:Families with children who attend child care facilities and with two or more other children should be provided with more information regarding vaccination and positive health behaviors in general.

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