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Estimating Infection Distribution and Prevalence of Malaria in South Korea Using a Back-calculation Formula

후향연산식을 활용한 국내 삼일열 말라리아의 감염분포와 유병자수 추정

  • Jang, Hyun-Gap (Dept. of Education and Training, Korea Cancer Center Hospital) ;
  • Park, Jeong-Soo (Dept. of Statistics, Chonnam National University) ;
  • Jun, Mi-Jeong (Korea Red Cross, Gwangju-Chonnam Blood-Bank) ;
  • Rhee, Jeong-Ae (Dept. of Preventive Medicine, Chonnam National University) ;
  • Kim, Han-Me-Ury (Dept. of Statistics, Chonnam National University)
  • Published : 2008.12.31

Abstract

Incidence of Plasmodium vivax malaria in South Korea have been reemerged from mid-1990 and infected around 1600 patients annually recent years. The authors calculated the distribution of malaria infection and prevalence in South Korea using incidence (2001-2006) and incubation period distributions by a back-calculation formula and the least squares estimation method. The estimated infection has a normal distribution with a mean 207 and a standard deviation 30.7 days. In addition, the authors found the estimated daily average prevalence is 628.8 patients.

국내 삼일열 말라리아는 1990년대 중반부터 급격히 증가하여 2000년대에는 연평균 1600여명이 발병하고 있다. 본 연구에서는 이미 알려진 잠복기 분포와 2001년부터 2006년까지의 발병자수 자료에 바탕하여 후향연산식을 활용하여 국내 삼일열 말라리아의 감염분포를 최소제곱법으로 추정하였다. 추정된 감염분포는 평균이 207일이고 표준편차가 30.7일인 정규분포를 이루었다. 이를 이용하여 연간 유병자수 분포를 산출한 결과, 말라리아의 하루 평균 유병자수는 628.8명 이었다.

Keywords

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