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Cellular telephone use and risk of intratemporal facial nerve tumor.

The Laryngoscope · 2003 · No effect · Low evidence

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No effectLow evidencePaper 6390

In this case-control telephone survey, the odds ratio for IFN tumor with any handheld cellular telephone use was 0.6 (95% CI 0.2–1.9) and with regular use was 0.4 (95% CI 0.1–2.1). No factors, including cellular telephone use, were associated with increased I…

Study snapshot

PublicationThe Laryngoscope · 2003
Study typecase_control
Reported directionNo effect
Evidence ratingLow

Abstract

OBJECTIVES/HYPOTHESIS: Microwave radiation exposure from cellular telephone use has been implicated in the development of intracranial tumors. The intratemporal facial nerve (IFN) is exposed to higher levels of cellular telephone radiation than intracranial tissues. The purpose of the study was to determine whether cellular telephone use is associated with an increased risk of IFN tumors. STUDY DESIGN: Case-control using a structured telephone survey at an academic, tertiary-care referral center. METHODS: Patients with IFN tumors (n = 18) were case-matched with patients treated for acoustic neuroma (n = 51), rhinosinusitis (n = 72), and dysphonia or gastroesophageal reflux disease (n = 69). Risk of facial nerve tumorigenesis was compared by extent of cellular telephone use and other risk factors. RESULTS: The odds ratio of developing an IFN tumor was 0.6 (95% CI, 0.2-1.9) with any handheld cellular telephone use and 0.4 (95% CI, 0.1-2.1) with regular cellular telephone use. No factors were associated with an increased risk for IFN tumor development. CONCLUSIONS: Regular cellular telephone use does not appear to be associated with a higher risk of IFN tumor development. The short duration of widespread cellular telephone use precludes definite exclusion as a risk for IFN tumor development.

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
PopulationPatients at an academic, tertiary-care referral center; cases with intratemporal facial nerve (IFN) tumors and matched control patients treated for acoustic neuroma, rhinosinusitis, and dysphonia or gastroesophageal reflux disease.
Sample size210
Exposuremicrowave
Evidence strengthLowConfidence: 78% · Peer reviewed: yes

Main findings

In this case-control telephone survey, the odds ratio for IFN tumor with any handheld cellular telephone use was 0.6 (95% CI 0.2–1.9) and with regular use was 0.4 (95% CI 0.1–2.1). No factors, including cellular telephone use, were associated with increased IFN tumor risk.

Outcomes measured

  • Intratemporal facial nerve (IFN) tumor risk

Limitations

  • Exposure assessed by structured telephone survey (self-reported use).
  • Short duration of widespread cellular telephone use noted as limiting definite exclusion of risk.
  • Small number of IFN tumor cases (n=18).
View raw extracted JSON
{
  "study_type": "case_control",
  "exposure": {
    "band": "microwave",
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "Patients at an academic, tertiary-care referral center; cases with intratemporal facial nerve (IFN) tumors and matched control patients treated for acoustic neuroma, rhinosinusitis, and dysphonia or gastroesophageal reflux disease.",
  "sample_size": 210,
  "outcomes": [
    "Intratemporal facial nerve (IFN) tumor risk"
  ],
  "main_findings": "In this case-control telephone survey, the odds ratio for IFN tumor with any handheld cellular telephone use was 0.6 (95% CI 0.2–1.9) and with regular use was 0.4 (95% CI 0.1–2.1). No factors, including cellular telephone use, were associated with increased IFN tumor risk.",
  "effect_direction": "no_effect",
  "limitations": [
    "Exposure assessed by structured telephone survey (self-reported use).",
    "Short duration of widespread cellular telephone use noted as limiting definite exclusion of risk.",
    "Small number of IFN tumor cases (n=18)."
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "cellular telephone",
    "mobile phone",
    "microwave radiation",
    "intratemporal facial nerve tumor",
    "case-control",
    "odds ratio"
  ],
  "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: 10.1097/00005537-200304000-00015
PubMed: 12671425

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