Study type: Epidemiological study (observational study)

Cellular telephone use and cancer risk: update of a nationwide Danish cohort. epidem.

Published in: J Natl Cancer Inst 2006; 98 (23): 1707-1713

Aim of study (acc. to author)

An extended follow-up of a nationwide cohort was performed to investigate cancer risk among Danish cellular telephone subscribers from 1982 through 2002.

Further details

The previous results of this cohort study are published in publication 5675.

Endpoint/type of risk estimation

Type of risk estimation: (standardized incidence rate (SIR))

Exposure

Assessment

Exposure groups

Group Description
Group 1 time since first subscription to diagnosis of cancer: < 1 year
Group 2 time since first subscription to diagnosis of cancer: 1 - 4 years
Group 3 time since first subscription to diagnosis of cancer: 5 - 9 years
Group 4 time since first subscription to diagnosis of cancer: ≥ 10 years

Population

Study size

Type Value
Total 723,421
Participants 420,095

Conclusion (acc. to author)

The mean time since first cellular telephone subscription was 8.5 years. 56,648 persons of the Danish cohort were subscribers to cellular telephone service for more than 10 years.
No increased risk for brain tumors, acoustic neuromas, salivary gland tumors, eye tumors, leukemias or cancer overall was found in association with cellular telephone use. There was also no increased risk for long-term subscribers.
The authors found no evidence for an association between cancer risk and cellular telephone use among either short-term or long-term users.

Study funded by

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