Assessment of auditory evoked potential in long-term mobile phone users.

Indian journal of physiology and pharmacology · 2014 · Harm · Low evidence

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HarmLow evidencePaper 3012

Study snapshot

PublicationIndian journal of physiology and pharmacology · 2014

Study typecross_sectional

Reported directionHarm

Evidence ratingLow

Abstract

Mobile phones emit strong electromagnetic wave which causes structural and functional changes in the cell membrane within the central nervous system especially auditory system. The effect of duration of mobile phone use on auditory function was examined One hundred and seventy three long-term mobile phone users aged around 17-39 yrs (both male and female) were recruited in this study. The subjects were divided into three groups according to their age Group I (17-19 yrs), Group II (20-29 yrs), Group III (30-39 yrs). After getting informed consent the subjects were instructed to fill the questionnaire for the history related to our study, conduction deafness auditory brainstem response in both the ears were assessed. Significant difference was observed among three groups in their duration of mobile phone use. Latency of Waves in three groups showed significant difference. The average latency (both right and left ear) of waves I-V was found to be prolonged in Group II when compared to Group I and Group III. Interpeak latencies I-V and I-III showed differences among three groups. The findings of present study showed abnormalities in the conduction of electrical signals in different levels of auditory pathway.

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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 directionharm

PopulationLong-term mobile phone users aged ~17–39 years (male and female)

Sample size173

ExposureRF · long-term use; duration differed significantly among age groups

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

In 173 long-term mobile phone users grouped by age (17–19, 20–29, 30–39 years), ABR wave latencies differed significantly among groups. Average wave I–V latencies (both ears) were prolonged in the 20–29 year group compared with the 17–19 and 30–39 year groups, and interpeak latencies (I–V and I–III) also differed among groups; authors interpret this as abnormalities in electrical signal conduction along the auditory pathway.

Outcomes measured

Auditory brainstem response (ABR) wave latencies (I–V)
Interpeak latencies (I–V, I–III)
Auditory pathway conduction abnormalities

Limitations

Cross-sectional design; no non-user/unexposed control group described
Exposure assessment appears questionnaire-based; specific phone characteristics (frequency, SAR) not reported
Grouping is by age; potential confounding by age and other factors not addressed in abstract
Outcome differences reported between age groups rather than directly by quantified duration of use

View raw extracted JSON

{
  "study_type": "cross_sectional",
  "exposure": {
    "band": "RF",
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "long-term use; duration differed significantly among age groups"
  },
  "population": "Long-term mobile phone users aged ~17–39 years (male and female)",
  "sample_size": 173,
  "outcomes": [
    "Auditory brainstem response (ABR) wave latencies (I–V)",
    "Interpeak latencies (I–V, I–III)",
    "Auditory pathway conduction abnormalities"
  ],
  "main_findings": "In 173 long-term mobile phone users grouped by age (17–19, 20–29, 30–39 years), ABR wave latencies differed significantly among groups. Average wave I–V latencies (both ears) were prolonged in the 20–29 year group compared with the 17–19 and 30–39 year groups, and interpeak latencies (I–V and I–III) also differed among groups; authors interpret this as abnormalities in electrical signal conduction along the auditory pathway.",
  "effect_direction": "harm",
  "limitations": [
    "Cross-sectional design; no non-user/unexposed control group described",
    "Exposure assessment appears questionnaire-based; specific phone characteristics (frequency, SAR) not reported",
    "Grouping is by age; potential confounding by age and other factors not addressed in abstract",
    "Outcome differences reported between age groups rather than directly by quantified duration of use"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "mobile phone",
    "radiofrequency",
    "auditory brainstem response",
    "auditory evoked potential",
    "latency",
    "interpeak latency",
    "auditory pathway"
  ],
  "suggested_hubs": [
    {
      "slug": "mobile-phones",
      "weight": 0.9,
      "reason": "Study evaluates auditory evoked potentials in long-term mobile phone users."
    }
  ]
}

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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: Not supplied
PubMed: 26215013

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