"However researchers show in a new article that the study in fact cannot say anything meaningful about the risk of brain tumors from mobile phone use. Moreover, its findings are contradicted by cancer statistics."
"The unexposed control group — the rest of the population — became increasingly contaminated between 1995 and 2007 by new mobile phone subscribers. By 2005, Denmark had 100 subscriptions per 100 inhabitants."
"The authors of the cohort study have argued that their findings are supported by statistics from the Nordic countries’ cancer registries, which overall have not shown an increasing incidence of brain tumors. However, Hardell and Nilsson demonstrate in their critical analysis that the statistics from the individual Nordic countries differ substantially and that brain tumor incidence increased the most in Denmark. This directly contradicts the cohort study’s conclusions."
Exposure Misclassification in the Danish Mobile Phone Subscriber Cohort and its Influence on International Radiofrequency (RF) Radiation Cancer Risk Assessments
Lennart Hardell and Mona Nilsson (2026) Archives of Internal Medicine Research Journal Level 0ⓘ
Hardell and Nilsson critique the Danish mobile phone cohort study
2026-05-25
Critical analysis of exposure misclassification in the Danish mobile phone subscriber cohort and its use in RF radiation cancer-risk assessments.
