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Electromagnetic fields and breast cancer on Long Island: a case-control study.

American journal of epidemiology · 2003 · No effect · Moderate evidence

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No effectModerate evidencePaper 5273

In multivariate logistic regression analyses, odds ratios for breast cancer across multiple residential EMF exposure metrics were close to 1 and not statistically significant. For the highest quartile of 24-hour EMF measurements, ORs were 0.97 (95% CI: 0.69, …

Study snapshot

PublicationAmerican journal of epidemiology · 2003
Study typecase_control
Reported directionNo effect
Evidence ratingModerate

Abstract

The EMF and Breast Cancer on Long Island Study (EBCLIS) was a case-control study designed to evaluate the possible association between exposure to electromagnetic fields (EMFs) and breast cancer. Eligible women were participants in the population-based Long Island Breast Cancer Study Project, were under 75 years of age at enrollment, were residentially stable, and were identified between August 1, 1996, and June 20, 1997. Of those eligible, 576 cases and 585 controls participated in EBCLIS (87% and 83%, respectively). In-home data collection included various spot and 24-hour EMF measurements, ground-current magnetic field measurements, wire mapping of overhead power lines servicing the home, and an interview. Odds ratios and 95% confidence intervals were based on multivariate logistic regression analyses. All odds ratios were close to 1 and nonsignificant. For the highest quartile of 24-hour EMF measurements, the odds ratio was 0.97 (95% confidence interval (CI): 0.69, 1.37) in the bedroom and 1.09 (95% CI: 0.78, 1.51) in the most lived-in room. For the highest exposure category of ground-current measurements, the odds ratio was 1.13 (95% CI: 0.88, 1.44) in the bedroom and 1.08 (95% CI: 0.85, 1.38) in the most lived-in room. These and other EBCLIS results agree with other recent reports of no association between breast cancer and residential EMF exposures.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typecase_control
Effect directionno_effect
PopulationWomen under 75 years of age participating in the population-based Long Island Breast Cancer Study Project (identified Aug 1, 1996–Jun 20, 1997)
Sample size1161
Exposurespot and 24-hour measurements
Evidence strengthModerateConfidence: 78% · Peer reviewed: yes

Main findings

In multivariate logistic regression analyses, odds ratios for breast cancer across multiple residential EMF exposure metrics were close to 1 and not statistically significant. For the highest quartile of 24-hour EMF measurements, ORs were 0.97 (95% CI: 0.69, 1.37) in the bedroom and 1.09 (95% CI: 0.78, 1.51) in the most lived-in room; for the highest ground-current category, ORs were 1.13 (95% CI: 0.88, 1.44) and 1.08 (95% CI: 0.85, 1.38), respectively.

Outcomes measured

  • Breast cancer
View raw extracted JSON
{
  "study_type": "case_control",
  "exposure": {
    "band": null,
    "source": "residential (in-home measurements; overhead power lines; ground current magnetic fields)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "spot and 24-hour measurements"
  },
  "population": "Women under 75 years of age participating in the population-based Long Island Breast Cancer Study Project (identified Aug 1, 1996–Jun 20, 1997)",
  "sample_size": 1161,
  "outcomes": [
    "Breast cancer"
  ],
  "main_findings": "In multivariate logistic regression analyses, odds ratios for breast cancer across multiple residential EMF exposure metrics were close to 1 and not statistically significant. For the highest quartile of 24-hour EMF measurements, ORs were 0.97 (95% CI: 0.69, 1.37) in the bedroom and 1.09 (95% CI: 0.78, 1.51) in the most lived-in room; for the highest ground-current category, ORs were 1.13 (95% CI: 0.88, 1.44) and 1.08 (95% CI: 0.85, 1.38), respectively.",
  "effect_direction": "no_effect",
  "limitations": [],
  "evidence_strength": "moderate",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "electromagnetic fields",
    "EMF",
    "breast cancer",
    "case-control",
    "residential exposure",
    "24-hour measurements",
    "spot measurements",
    "ground-current magnetic fields",
    "wire mapping",
    "overhead power lines",
    "Long Island"
  ],
  "suggested_hubs": [
    {
      "slug": "residential-elf-emf",
      "weight": 0.85,
      "reason": "Assesses residential EMF exposure using in-home spot/24-hour measurements, ground-current magnetic fields, and wire mapping of overhead power lines."
    }
  ]
}
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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1093/aje/kwg106
PubMed: 12835286

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