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A study on current immunization status attending an above-middle from class primary school in Seoul.

Journal of the Korean Pediatric Society 1991;34(9):1187-1200.
Published online September 30, 1991.
A study on current immunization status attending an above-middle from class primary school in Seoul.
Jae Won Oh, Sung Lae Park, Sung Hee Oh, Hahng Lee
Department of Pediatrics, College of Medicine, Hanyang University, Seoul, Korea
서울시내 중산층 이상의 1개 국민학교에서의 예방접종실태조사
오재원, 박성래, 오성희, 이항
한양대학교 의과대학 소아과학교실
Received: 20 April 1991   • Accepted: 26 May 1991
1. Purpose and Methodology The purpose of this survey was to estimate the current immunization status of Korean children by the information gathered by questionnaire distibuted to the parents of all children attending an above-middle class private primary school in Seoul and thereby analizing various factors closely related to the vaccination program as currently administered in Korea. The survey has been conducted by obtaining written answers to the questionnaire distributed to the parent of a total 1046 children from the first to the sixth grades, bom during period beteen 1978 and 1984. Out of a total 1046 children in the target population the parents of 841 (80.4%) responded to the questionnaires in regard to their understanding and experience on each past vaccination of the routine recommanded immuni- zation of the childhood. 2. Results 1) General characteristics of the parents of 841 children (427 boys and 414 girls) revealed the level of their education to be relatively high (University or College graduates in fathers 76.3%, in mothers 55.4%) and their socio-economic level to be at the above-middle class in 90%. Out of 841 children, those keeping up with the vaccination records were 360 (42.8%). 2) Understanding on the necessity of the vaccinations was high (>95%). 3) Sources of knowledge on the vaccinations were as follows: from the pediatricians 44.1%; from the health lituratures 28.3%: from available reference vaccination schedule 8.0%. 4) Health facilities where vaccinations were provided were as follows: pediatician’s offices 54.5%; well baby clinics in general hospital 16.3%, general clinics 8.5%; local district public health centers or maternal child health center 3.3%. 5) Reasons for not receiving vaccinations excluding ‘unanswered’ cases were as follows: Considered unnecessary by the parents 30.3%; adviced unnecessary by the doctors 22.2%; adviced against by the doctors 1.4%. 6) Vaccination rate Vaccination rate were based on the standard immunization schedule published by KPA (Korean Pediatric Association), 1984. The results were as follows: a. B.C.G.: standard: 86.3%, revaccination: 16.6% b. Hepatitis B 1st: 79.1%, 2nd: 65.4%, 3rd: 56.0%, booster or revaccination: 15.5% c. D.T.P. 1st: 96.6%, 2nd: 83.5%, 3rd: 79.9%, 1st booster: 56.7%, 2nd booster: 38.3% d. T.O.P.V. 1st: 96.2%, 2nd: 84.1%, 3rd: 81.5%, 1st booster: 57.8%, 2nd booster: 38.6% e. MMR standard: 91.7%, booster or revaccination: 43.9% f. Typhoid fever: 38.4% g. J.B.E.: 90.6% 7) Side effect after vaccination Percent distribution of the side effects after vaccination were summarized as follows: a. B.C.G. standard: 16.7%, revaccination: 15.7% b. Hepatitis B 1st: 5.0%, 2nd: 3.1%, 3rd: 3.2%, booster: 2.3% c. D.T.P. 1st: 11.7%, 2nd: 8.3%, 3rd: 7.6%, 1st booster: 5.5%, 2nd bosster: 4.3% d. TOPV 1st: 2.3%, 2nd: 1.3%, 3rd: 0.8%, 1st booster: 0.4%; 2nd booster: 0.3% e. MMR 1st: 7.6%, 2nd: 6.5% f. Typhoid fever: 14.9% g. J.B.E: 20.7% 3. Conclusion Expecting a higher compliance rate of active immunization in early and school age children, and in order to estimate the vaccination status of Korean children, a questionnaire survey was performed with the parents of the target children attending on an above-middle class private primary school in Seoul. This survey revealed that while understanding on the necessity of keeping immunizations up -to-date according to the recommanded schedule was very high, actual vaccination rate was relative- ly low and the standard vaccinations were not performed on a proper time schedule. The authors believe, therefore, that more effective public education on keeping up with up-to-date vaccination records is imperative in order to raise the currently disappointingly low vaccination coverage rates and more strict govermental regulations requiring the up-to-date vaccination records in all children, not only at their entrance into the primary school, but at all grade levels at least throughout the primary school years.
Key Words: Vaccination, Compliance, Side effects

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