Impact of mobile phone-emitted non-ionizing electromagnetic radiation on parotid gland function: A comprehensive study

International Journal of Risk & Safety in Medicine · 2025 · Harm · Low evidence

← Research stream

HarmLow evidencePaper 2631

Study snapshot

PublicationInternational Journal of Risk & Safety in Medicine · 2025

Study typecross_sectional

Reported directionHarm

Evidence ratingLow

Abstract

Category: Epidemiology Institution: University campus (specific institution not provided) Tags: mobile phones, non-ionizing electromagnetic radiation, parotid gland, salivary function, NIER exposure, health risk, public health DOI: 10.1177/09246479251342488 URL: journals.sagepub.com Overview The rapid proliferation of mobile technology has intensified debates on the potential adverse effects of non-ionizing electromagnetic radiation (NIER) from mobile phones on various human organs and cells. This comprehensive study aimed to evaluate the impact of mobile phone-emitted NIER on parotid gland function. Methodology - Cross-sectional study with 104 student volunteers from a University campus. - Participants were categorized based on their mobile phone usage and exposure duration. - Saliva samples were collected from the dominant (test) and non-dominant (control) sides. - Key metrics measured: salivary flow rate, pH, albumin, Ischemia-Modified Albumin (IMA), and IMA/albumin ratio (IMAR). - Data analysis using one-way ANOVA and Fisher's LSD multiple comparisons, with p = 0.05 considered statistically significant. Findings - Salivary flow rate and pH were higher on both sides in all groups, correlating with increased mobile phone usage duration. - Albumin levels were lower on the dominant side but increased with longer mobile phone use. - Salivary IMA and IMAR were higher on the dominant side in subjects using mobile phones for ≤3 years compared to those using them for >3 years. Conclusion Consistent exposure to NIER and the heat generated by mobile phones adversely affects parotid gland function, as indicated by increased salivary flow rate, pH, and altered levels of albumin, IMA, and IMAR. There is a health risk associated with NIER exposure to the parotid gland. Public health recommendations should encourage reducing long-duration conversations and using earphones to minimize NIER exposure. Further studies are needed to evaluate the long-term effects of NIER on parotid gland function.

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 directionharm

PopulationStudent volunteers from a university campus

Sample size104

ExposureCategorized by mobile phone usage and exposure duration; comparisons included ≤3 years vs >3 years of use

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

In 104 student volunteers, salivary flow rate and pH were higher on both dominant (test) and non-dominant (control) sides across groups and were reported to correlate with increased mobile phone usage duration. Albumin was lower on the dominant side but increased with longer mobile phone use. Salivary IMA and IMAR were higher on the dominant side in participants using mobile phones for ≤3 years compared with those using them for >3 years.

Outcomes measured

Parotid gland function (salivary measures)
Salivary flow rate
Salivary pH
Salivary albumin
Salivary Ischemia-Modified Albumin (IMA)
IMA/albumin ratio (IMAR)

Limitations

Cross-sectional design
Exposure characterized by usage/exposure duration categories without stated RF parameters (e.g., frequency, SAR)
Population limited to student volunteers from a university campus

View raw extracted JSON

{
  "study_type": "cross_sectional",
  "exposure": {
    "band": null,
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "Categorized by mobile phone usage and exposure duration; comparisons included ≤3 years vs >3 years of use"
  },
  "population": "Student volunteers from a university campus",
  "sample_size": 104,
  "outcomes": [
    "Parotid gland function (salivary measures)",
    "Salivary flow rate",
    "Salivary pH",
    "Salivary albumin",
    "Salivary Ischemia-Modified Albumin (IMA)",
    "IMA/albumin ratio (IMAR)"
  ],
  "main_findings": "In 104 student volunteers, salivary flow rate and pH were higher on both dominant (test) and non-dominant (control) sides across groups and were reported to correlate with increased mobile phone usage duration. Albumin was lower on the dominant side but increased with longer mobile phone use. Salivary IMA and IMAR were higher on the dominant side in participants using mobile phones for ≤3 years compared with those using them for >3 years.",
  "effect_direction": "harm",
  "limitations": [
    "Cross-sectional design",
    "Exposure characterized by usage/exposure duration categories without stated RF parameters (e.g., frequency, SAR)",
    "Population limited to student volunteers from a university campus"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "mobile phones",
    "non-ionizing electromagnetic radiation",
    "parotid gland",
    "salivary function",
    "salivary flow rate",
    "pH",
    "albumin",
    "Ischemia-Modified Albumin",
    "IMA",
    "IMAR",
    "epidemiology",
    "cross-sectional"
  ],
  "suggested_hubs": [
    {
      "slug": "mobile-phones",
      "weight": 0.9,
      "reason": "Study evaluates health-related salivary/parotid outcomes in relation to mobile phone-emitted non-ionizing electromagnetic radiation."
    }
  ]
}

AI can be wrong. Always verify against the paper.

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: 10.1177/09246479251342488
PubMed: Not supplied

Read the original paper →

Related papers

← Back to the Research Library