RF Safe

Risk perception, somatization, and self report of complaints related to electromagnetic fields--a randomized survey study.

International journal of hygiene and environmental health · 2002 · Mixed · Low evidence

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MixedLow evidencePaper 5296

In a randomized survey varying three cognitive factors, EMF-related complaints were reported more often by females and by people with higher somatization tendency; age showed no significant linear effect. A cognitive threat condition produced a significant co…

Study snapshot

PublicationInternational journal of hygiene and environmental health · 2002
Study typerandomized_trial
Reported directionMixed
Evidence ratingLow

Abstract

Exposure to electromagnetic fields (EMF) as well as EMF-related complaints has increased over the past decades. However, it is unclear whether these complaints are related to the electromagnetic or other physical properties of these fields per se, to salience of EMF in media, or to both. What is the prevalence of EMF-related complaints in the general population? What are the influencing factors on this prevalence? Does reporting of EMF-related symptoms depend on cognitive factors? To answer these questions, a survey with random variation of three cognitive factors was performed. As expected, EMF-related complaints were reported more by females and people with higher somatization tendency. Age had no significant linear effect on EMF-related complaints. The cognitive condition of threat produced a significant contrast effect among people with high somatization tendency on EMF-related complaints. Cognition can influence reporting of EMF-related effects. Thus, in future research of such effects, psychologically influencing factors should be included. Also risk communication should incorporate knowledge about social cognition.

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 typerandomized_trial
Effect directionmixed
Populationgeneral population
Sample sizeNot supplied
ExposureNot supplied
Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

In a randomized survey varying three cognitive factors, EMF-related complaints were reported more often by females and by people with higher somatization tendency; age showed no significant linear effect. A cognitive threat condition produced a significant contrast effect on EMF-related complaints among participants with high somatization tendency, suggesting cognition can influence reporting of EMF-related effects.

Outcomes measured

  • self-reported EMF-related complaints/symptoms
  • prevalence of EMF-related complaints
  • associations with somatization tendency
  • associations with sex (female vs male)
  • associations with age
  • effect of cognitive factors (e.g., threat condition) on symptom reporting

Limitations

  • No specific EMF exposure characteristics (frequency, source, dose) described in the abstract
  • Outcomes are self-reported complaints rather than objectively measured health endpoints
  • Sample size and sampling/response details not provided in the abstract
  • Details of the randomized cognitive manipulations (the three factors) are not specified in the abstract
View raw extracted JSON
{
  "study_type": "randomized_trial",
  "exposure": {
    "band": null,
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "general population",
  "sample_size": null,
  "outcomes": [
    "self-reported EMF-related complaints/symptoms",
    "prevalence of EMF-related complaints",
    "associations with somatization tendency",
    "associations with sex (female vs male)",
    "associations with age",
    "effect of cognitive factors (e.g., threat condition) on symptom reporting"
  ],
  "main_findings": "In a randomized survey varying three cognitive factors, EMF-related complaints were reported more often by females and by people with higher somatization tendency; age showed no significant linear effect. A cognitive threat condition produced a significant contrast effect on EMF-related complaints among participants with high somatization tendency, suggesting cognition can influence reporting of EMF-related effects.",
  "effect_direction": "mixed",
  "limitations": [
    "No specific EMF exposure characteristics (frequency, source, dose) described in the abstract",
    "Outcomes are self-reported complaints rather than objectively measured health endpoints",
    "Sample size and sampling/response details not provided in the abstract",
    "Details of the randomized cognitive manipulations (the three factors) are not specified in the abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "electromagnetic fields",
    "risk perception",
    "somatization",
    "self-report",
    "symptoms",
    "complaints",
    "cognition",
    "threat condition",
    "survey",
    "randomized survey"
  ],
  "suggested_hubs": [
    {
      "slug": "who-icnirp",
      "weight": 0.2,
      "reason": "Addresses EMF-related symptom reporting and risk communication/cognition, relevant to broader EMF health guidance discussions."
    }
  ]
}
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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: 10.1078/1438-4639-00170
PubMed: 12173533

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