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Assessment of the Metabolic Profile of Primary Leukemia Cells
Published on: November 21, 2018
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Residential mobility and childhood leukemia.
A T Amoon1, S Oksuzyan2, C M Crespi3
1Department of Epidemiology, University of California Los Angeles Fielding School of Public Health, 650 Charles E. Young Drive South, Los Angeles, CA 90095-1772, USA.
Environmental Research
|March 26, 2018
Summary
Residential mobility in childhood leukemia studies is often overlooked. This study found mobility is not a likely cause for the observed associations between power lines and childhood leukemia.
Area of Science:
- Environmental Epidemiology
- Pediatric Oncology
- Public Health
Background:
- Childhood leukemia studies often do not account for residential mobility.
- Residential mobility can introduce bias (selection, confounding, measurement error) into environmental exposure studies.
- The California Powerline Study (CAPS) data was used to investigate the role of mobility.
Purpose of the Study:
- To assess the impact of residential mobility on childhood leukemia risk estimates.
- To determine if residential mobility confounds the association between power line proximity and childhood leukemia.
- To disentangle the effects of residential mobility in environmental exposure research.
Main Methods:
- Population-based case-control study of childhood leukemia in California (1988-2008).
- Used stratified logistic regression, case-only analysis, and propensity-score adjustments to model mobility predictors.
- Analyzed association between residential mobility, sociodemographic factors, and proximity to high-voltage power lines.
Main Results:
- Children who moved were more likely to be older, live in non-single-family homes, have younger mothers, fewer siblings, and lower socioeconomic status.
- Adjusting for mobility-related factors, particularly dwelling type, increased the odds ratios for leukemia associated with proximity to 200+ kilovolt lines and calculated magnetic fields.
- The association between power line exposure and childhood leukemia was not explained by residential mobility.
Conclusions:
- Childhood leukemia cases exhibited varied residential mobility based on sociodemographic factors.
- Residential mobility did not correlate with proximity to power lines or magnetic field exposure levels.
- Residential mobility is unlikely to explain the observed associations between power line exposure and childhood leukemia.
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