Evidence map›Paper›PMID 28900736›Full record

ArticleCancer causes & control : CCC2017

Residential magnetic fields exposure and childhood leukemia: a population-based case-control study in California.

Leeka Kheifets, Catherine M Crespi, Chris Hooper, Myles Cockburn, Aryana T Amoon, Ximena P Vergara

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In one paragraph

Article in Cancer causes & control : CCC, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  13. Residential mobility and childhood leukemia.Environmental research · 2018
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Leeka KheifetsDepartment of Epidemiology, UCLA Fielding School of Public Health, 650 Charles E Young Drive South, Los Angeles, CA, 90024, USA. kheifets@ucla.edu.ORCID http://orcid.org/0000-0002-3114-2277
Catherine M CrespiDepartment of Biostatistics, UCLA Fielding School of Public Health, Los Angeles, CA, 90024, USA.
Chris HooperEnertech Consultants, Campbell, CA, 95008, USA.
Myles CockburnDepartment of Preventive Medicine, University of Southern California, Los Angeles, CA, 90089, USA.
Aryana T AmoonDepartment of Epidemiology, UCLA Fielding School of Public Health, 650 Charles E Young Drive South, Los Angeles, CA, 90024, USA.
Ximena P VergaraDepartment of Epidemiology, UCLA Fielding School of Public Health, 650 Charles E Young Drive South, Los Angeles, CA, 90024, USA.

Funding

Women's CancersP30CA016042 · NCI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI Samuel Wheeler French · 1985 to 2026
$134.5M
NCI NIH HHS P30 CA016042
6 · The paper itself

Abstract

purposeStudies have reported an increased risk of childhood leukemia associated with exposure to magnetic fields. We conducted a large records-based case-control study of childhood leukemia risk and exposure to magnetic fields from power lines in California.

methodsThe study included 5,788 childhood leukemia cases (born in and diagnosed in California 1986-2008) matched to population-based controls on age and sex. We calculated magnetic fields at birth addresses using geographic information systems, aerial imagery, historical information on load and phasing, and site visits.

resultsBased on unconditional logistic regression controlling for age, sex, race/ethnicity, and socioeconomic status using subjects geocoded to a basic standard of accuracy, we report a slight risk deficit in two intermediate exposure groups and a small excess risk in the highest exposure group (odds ratio of 1.50 (95% confidence interval [0.70, 3.23])). Subgroup and sensitivity analyses as well as matched analyses gave similar results. All estimates had wide confidence intervals.

conclusionOur large, statewide, record-based case-control study of childhood leukemia in California does not in itself provide clear evidence of risk associated with greater exposure to magnetic fields from power lines, but could be viewed as consistent with previous findings of increased risk.

Indexed as

Environmental ExposureHousingMagnetic FieldsAdolescentCaliforniaCase-Control StudiesChildChild, PreschoolEthnicityFemaleHumansInfantInfant, NewbornLeukemiaLogistic ModelsMaleCase–control studyChildhood leukemiaEMFGISMagnetic fields

Identifiers

PMID28900736
PMCPMC5706765

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.