The half-life of ascaris lumbricoides prevalence in Japanese school children

Carmen Miwa Kurosawa, Takehiko Ito, Jiro Takaki, Bing Ling Wang, Da Hong Wang, Tomoko Takigawa, Keiki Ogino

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In the present study, we examined the dynamic of school-health-based parasite control and the related socio-economic influences. This is an ecological study based on data from 46 prefectures in Japan. The exponential decay of Ascaris lumbricoides prevalence was calculated by iterative least-squares method. Pearson's correlation and multiple linear regression model analysis were performed to assess the associations between the prevalence of Ascaris lumbricoides in Japanese school children and socio-economic variables such as the prefecture income per capita, the percentage of primary industry, the population density per 1 km2, the diffusion rate of population under water supply, and the percentage of upper secondary school enrollment. The results indicated that the parasite carrier rate was higher in younger students. The half-life of Ascaris lumbricoides prevalence was approximately 3 years with significant variation among prefectures. Multiple regression analyses showed that the decrease of infection in elementary and lower secondary school children had a significant positive association with primary industry and a significant negative association with prefecture income per capita. The school-health-based parasite intervention differs by prefecture and has changed over time according to the respective prefectural stage of economic development. Copyright

Original languageEnglish
Article number4
JournalActa Medica Okayama
Volume62
Issue number5
Publication statusPublished - Oct 2008

Fingerprint

Ascaris lumbricoides
Half-Life
School Health Services
Economics
Linear Models
Industry
Parasites
Regression Analysis
Health
Students
Communicable Disease Control
Economic Development
Water Supply
Population Density
Least-Squares Analysis
Water supply
Linear regression
Japan
Infection
Population

Keywords

  • Ascaris lumbricoides
  • Economic growth
  • Parasite control
  • School-health-based approach

ASJC Scopus subject areas

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Kurosawa, C. M., Ito, T., Takaki, J., Wang, B. L., Wang, D. H., Takigawa, T., & Ogino, K. (2008). The half-life of ascaris lumbricoides prevalence in Japanese school children. Acta Medica Okayama, 62(5), [4].

The half-life of ascaris lumbricoides prevalence in Japanese school children. / Kurosawa, Carmen Miwa; Ito, Takehiko; Takaki, Jiro; Wang, Bing Ling; Wang, Da Hong; Takigawa, Tomoko; Ogino, Keiki.

In: Acta Medica Okayama, Vol. 62, No. 5, 4, 10.2008.

Research output: Contribution to journalArticle

Kurosawa, CM, Ito, T, Takaki, J, Wang, BL, Wang, DH, Takigawa, T & Ogino, K 2008, 'The half-life of ascaris lumbricoides prevalence in Japanese school children', Acta Medica Okayama, vol. 62, no. 5, 4.
Kurosawa CM, Ito T, Takaki J, Wang BL, Wang DH, Takigawa T et al. The half-life of ascaris lumbricoides prevalence in Japanese school children. Acta Medica Okayama. 2008 Oct;62(5). 4.
Kurosawa, Carmen Miwa ; Ito, Takehiko ; Takaki, Jiro ; Wang, Bing Ling ; Wang, Da Hong ; Takigawa, Tomoko ; Ogino, Keiki. / The half-life of ascaris lumbricoides prevalence in Japanese school children. In: Acta Medica Okayama. 2008 ; Vol. 62, No. 5.
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