Residential exposure to petrochemicals and the risk of leukemia: Using geographic information system tools to estimate individual-level residential exposure

Chu Ling Yu, Su Fen Wang, Pi Chen Pan, Ming Tsang Wu, Chi Kung Ho, Thomas J. Smith, Yi Li, Lucille Pothier, David C. Christiani

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

The authors conducted a population-based, case-control study in Kaohsiung, southern Taiwan, Republic of China, to investigate the association between residential petrochemical exposure and leukemia risk among subjects 29 years of age and younger. Between November 1997 and June 2003, 171 cases and 410 controls matched for age and sex were recruited. Since assessment of petrochemical impacts depends on accurate exposure estimates, the authors developed a procedure using geographic information system tools to assign subjects' exposure. The resulting individual-level exposure estimates (the exposure opportunity score) are an integrated exposure measure that accounts for subjects' mobility, length of stay at each residence, distance to petrochemical plant(s), monthly prevailing wind direction, and multiple petrochemical pollution sources. Different conditional logistic regression models were fitted for subjects aged 0-19 and 20-29 years to evaluate separately childhood versus adulthood leukemia. No overall association was observed for the younger age group. However, residential petrochemical exposure was a significant risk factor for leukemia for the older age group. For one unit of increase in the log-transformed exposure opportunity score, the adjusted odds ratio was 1.54 (95 percent confidence interval: 1.14, 2.09). This study illustrates the utility of geographic information system tools for providing refined exposure estimates for residential exposure to petrochemical pollution.

Original languageEnglish
Pages (from-to)200-207
Number of pages8
JournalAmerican Journal of Epidemiology
Volume164
Issue number3
DOIs
Publication statusPublished - 2006 Aug 1

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Geographic Information Systems
Leukemia
Taiwan
Age Groups
Logistic Models
Case-Control Studies
Length of Stay
Odds Ratio
Confidence Intervals
Population

All Science Journal Classification (ASJC) codes

  • Epidemiology

Cite this

Yu, Chu Ling ; Wang, Su Fen ; Pan, Pi Chen ; Wu, Ming Tsang ; Ho, Chi Kung ; Smith, Thomas J. ; Li, Yi ; Pothier, Lucille ; Christiani, David C. / Residential exposure to petrochemicals and the risk of leukemia : Using geographic information system tools to estimate individual-level residential exposure. In: American Journal of Epidemiology. 2006 ; Vol. 164, No. 3. pp. 200-207.
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Residential exposure to petrochemicals and the risk of leukemia : Using geographic information system tools to estimate individual-level residential exposure. / Yu, Chu Ling; Wang, Su Fen; Pan, Pi Chen; Wu, Ming Tsang; Ho, Chi Kung; Smith, Thomas J.; Li, Yi; Pothier, Lucille; Christiani, David C.

In: American Journal of Epidemiology, Vol. 164, No. 3, 01.08.2006, p. 200-207.

Research output: Contribution to journalArticle

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