Symptom attribution and risk perception in individuals with idiopathic environmental intolerance to electromagnetic fields and in the general population.

Perspectives in public health · 2014 · Mixed · Low evidence

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MixedLow evidencePaper 4588

Study snapshot

PublicationPerspectives in public health · 2014

Study typecross_sectional

Reported directionMixed

Evidence ratingLow

Abstract

AIM: To investigate differences in health perception and electromagnetic fields (EMF) between people within the general population reporting sensitivity or non-sensitivity to EMF, and people who registered themselves as sensitive to EMF at a non-governmental organisation (NGO). METHODS: Correlations and regression analysis to compare a sample of the general population recruited via internet panel to individuals with idiopathic environmental intolerance to EMF (IEI-EMF) recruited via an interest group. RESULTS: The general population sensitive group was more similar to the non-sensitive group in personal characteristics than to the NGO sensitive group. They experienced more - and more frequent - non-specific symptoms, reported higher perceived risk of EMF, and attributed their symptoms more to EMF than the non-sensitive group, but less than the NGO sensitive group. There was a positive association between attribution of symptoms to EMF and reported intensity of non-specific symptoms, which was stronger for the NGO sensitive subjects than for the general population. CONCLUSIONS: People sensitive to EMF and recruited via an internet panel differ from people sensitive to EMF and recruited via an NGO, who reported a higher frequency of non-specific symptoms. Attribution of symptoms to EMF is one of the predictors of the intensity of physical symptoms. Changing the perceived association between EMF and health problems in individuals with IEI-EMF might contribute to a better health experience.

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 typecross_sectional

Effect directionmixed

PopulationIndividuals in the general population (internet panel) reporting sensitivity or non-sensitivity to EMF, and individuals with idiopathic environmental intolerance to EMF (IEI-EMF) recruited via a non-governmental organisation (interest group).

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Compared with the non-sensitive general population group, the general population sensitive group reported more and more frequent non-specific symptoms, higher perceived risk of EMF, and greater attribution of symptoms to EMF; these levels were lower than in the NGO sensitive group. Attribution of symptoms to EMF was positively associated with reported intensity of non-specific symptoms, with a stronger association in the NGO sensitive group than in the general population.

Outcomes measured

Health perception
Perceived risk of EMF
Attribution of symptoms to EMF
Non-specific symptom frequency
Non-specific symptom intensity

Limitations

Sample size not reported in the abstract.
Cross-sectional design (correlational/regression analyses) limits causal inference.
Recruitment differed by group (internet panel vs interest group/NGO), which may introduce selection differences.

View raw extracted JSON

{
  "study_type": "cross_sectional",
  "exposure": {
    "band": null,
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "Individuals in the general population (internet panel) reporting sensitivity or non-sensitivity to EMF, and individuals with idiopathic environmental intolerance to EMF (IEI-EMF) recruited via a non-governmental organisation (interest group).",
  "sample_size": null,
  "outcomes": [
    "Health perception",
    "Perceived risk of EMF",
    "Attribution of symptoms to EMF",
    "Non-specific symptom frequency",
    "Non-specific symptom intensity"
  ],
  "main_findings": "Compared with the non-sensitive general population group, the general population sensitive group reported more and more frequent non-specific symptoms, higher perceived risk of EMF, and greater attribution of symptoms to EMF; these levels were lower than in the NGO sensitive group. Attribution of symptoms to EMF was positively associated with reported intensity of non-specific symptoms, with a stronger association in the NGO sensitive group than in the general population.",
  "effect_direction": "mixed",
  "limitations": [
    "Sample size not reported in the abstract.",
    "Cross-sectional design (correlational/regression analyses) limits causal inference.",
    "Recruitment differed by group (internet panel vs interest group/NGO), which may introduce selection differences."
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "idiopathic environmental intolerance",
    "IEI-EMF",
    "electromagnetic fields",
    "risk perception",
    "symptom attribution",
    "non-specific symptoms",
    "internet panel",
    "NGO",
    "interest group"
  ],
  "suggested_hubs": []
}

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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: 10.1177/1757913913492931
PubMed: 23912159

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