Mobile Phone Use and the Risk of Skin Cancer: A Nationwide Cohort Study in Denmark.
Published in: Am J Epidemiol 2013; 178 (2): 190-197
Aim of study (acc. to author)
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:
mobile phone subscribers of two Danish network operators 1987 - 1995 Exposure groups
Reference group 1
subscribers: 1 - 4 years of subscription
subscribers: 5 - 9 years of subscription
subscribers: 10 - 12 years of subscription
subscribers: ≥ 13 years of subscription
≥ 30 years
Danes born after 1925 in Denmark (participants of the nationwide study of social inequality and cancer incidence and survival (CANULI))
1990 - 2007
Danish Cancer Registry, Danish Pathology Register
corporate customers, no permanent residence in Denmark
Statistical analysis method:
calendar period, income
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
Danish Cancer Society
International Epidemiology Institute, Maryland, USA
TeleDanmark Mobil (TDC Mobil), Denmark
Swiss National Science Foundation (SNF)
Danish Graduate School Network in Public Health Science (GRASPH), Denmark
Schüz J et al.
Long-Term Mobile Phone Use and the Risk of Vestibular Schwannoma: A Danish Nationwide Cohort Study.
Hardell L et al.
Case-control study on the use of mobile and cordless phones and the risk for malignant melanoma in the head and neck region.
Frei P et al.
Use of mobile phones and risk of brain tumours: update of Danish cohort study.
Schüz J et al.
Cellular telephone use and cancer risk: update of a nationwide Danish cohort.
Johansen C et al.
Cellular telephones and cancer--a nationwide cohort study in Denmark.