Study type: Epidemiological study (observational study)

Mobile Phone Use and the Risk of Skin Cancer: A Nationwide Cohort Study in Denmark. epidem.

Published in: Am J Epidemiol 2013; 178 (2): 190-197

Aim of study (acc. to author)

In a nationwide cohort study in Denmark, the association between mobile phone use and the risk of skin cancer was investigated in private mobile phone subscribers from 1990 through 2007.

Further details

Separate incidence rate ratios were compared for the skin of the head and neck and the skin of the torso or legs to address for further potential confounders such as susceptibility and behavioral factors that affect all parts of the body equally.

Endpoint/type of risk estimation

Type of risk estimation: (incidence rate ratio)

Exposure

Assessment

Exposure groups

Group Description
Reference group 1 non-subscribers
Group 2 subscribers
Group 3 subscribers: 1 - 4 years of subscription
Group 4 subscribers: 5 - 9 years of subscription
Group 5 subscribers: 10 - 12 years of subscription
Group 6 subscribers: ≥ 13 years of subscription

Population

Study size

Type Value
Total 355,701
Statistical analysis method: ( adjustment: )

Conclusion (acc. to author)

No overall increased risk for basal cell carcinoma, squamous cell carcinoma, or melanoma of the head and neck was observed among private mobile phone subscribers.
After a follow-up period of at least 13 years (group 6), the incidence rate ratios for basal cell carcinoma and squamous cell carcinoma remained near unity. Among men, the incidence rate ratio for melanoma of the head and neck was 1.20 (CI 0.65-2.22) after a minimum 13-year follow-up (group 6), whereas the corresponding incidence rate ratio for the torso and legs was 1.16 (CI 0.91-1.47), yielding an ratio of both incidence rate ratios of 1.04 (CI 0.54, 2.00). A similar risk pattern was seen among women, though it was based on smaller numbers.
The authors concluded that in this large, population-based cohort study, little evidence of an increased skin cancer risk was observed among mobile phone users.

Study funded by

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