J Korean Med Sci.  2013 Sep;28(9):1283-1288. 10.3346/jkms.2013.28.9.1283.

Comparative Estimation of Coverage between National Immunization Program Vaccines and Non-NIP Vaccines in Korea

Affiliations
  • 1Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea. eunchoi@snu.ac.kr
  • 2Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.

Abstract

This study aimed to describe the differences in vaccination coverage between National Immunization Program (NIP) vaccines and non-NIP vaccines in Korea and to identify factors affecting the difference. Nationwide face-to-face interview-based questionnaire survey among randomly selected 4,374 participants aged 7-83 months was conducted. Vaccination coverage analyzed according to the birth cohorts, geographic areas, and socio-demographic characteristics. We found that NIP vaccines recorded higher primary vaccination coverage compared to non-NIP vaccines (95.9%-100% vs 30.7%-85.4%). The highest rate was Haemophilus influenzae type b (Hib) vaccine (85.4%), which was introduced in 1996, and the lowest rate was rotavirus vaccine (30.7%), which was introduced recently. On multivariate analysis, having a sibling were significantly associated with lower uptake of Hib vaccine, pneumococcal conjugate vaccine (PCV), and rotavirus vaccine; while, older mother's age and attendance to daycare center were significantly associated with lower uptake of PCV and rotavirus vaccine (P < 0.001). We found differences in the vaccine coverage rate between NIP vaccines and non-NIP vaccines; and the data suggests potential disparity in accessing non-NIP vaccines in Korea. Expansion of NIP to include non-NIP vaccines can provide better protection against the diseases through increased coverage.

Keyword

Vaccines; Coverage; National Immunization Program; Public Health

MeSH Terms

Adult
Asian Continental Ancestry Group
Child
Child Day Care Centers
Child, Preschool
Cohort Studies
Demography
Female
Haemophilus Infections/prevention & control
Humans
*Immunization Programs
Infant
Interviews as Topic
Male
Multivariate Analysis
Pneumococcal Infections/prevention & control
Questionnaires
Republic of Korea
Rotavirus Infections/prevention & control
Socioeconomic Factors
*Vaccination
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