"Current outdated regulatory limits for phone RFR rest on the incorrect long held assumption that non thermal levels are safe."
Schüz, Joachim, Pirie, Kirstin, Reeves, Gillian K, Floud, Sarah, Beral, Valerie. Response to Moskowitz and Birnbaum, Taylor, Baldwin et al. JNCI: Journal of the National Cancer Institute. 2022. doi: 10.1093/jnci/djac111.
" We do agree, however, with both Moskowitz (1) and Birnbaum et al. (6) that our study does not include many heavy users of cellular phones."
"A large international prospective study of cellular telephone users including also men and younger women is underway  but results have not been published yet. Overall, our findings and those from other studies support our carefully worded conclusion that 'cellular telephone use under usual conditions [our emphasis] does not increase brain tumor incidence'. However, advising heavy users on how to reduce unnecessary exposures remains a good precautionary approach."
March 30, 2022 (Updated April 1, 2022)
The ongoing debate of whether use of cellular telephones increases the risk of developing a brain tumor was recently fueled by the launch of the fifth generation of wireless technologies. Here, we update follow-up of a large-scale prospective study on the association between cellular telephone use and brain tumors.
During 1996-2001, 1.3 million women born in 1935-1950 were recruited into the study. Questions on cellular telephone use were first asked in median year 2001 and again in median year 2011. All study participants were followed via record linkage to National Health Services databases on deaths and cancer registrations (including nonmalignant brain tumors).
During 14 years follow-up of 776 156 women who completed the 2001 questionnaire, a total of 3268 incident brain tumors were registered. Adjusted relative risks for ever vs never cellular telephone use were 0.97 (95% confidence interval = 0.90 to 1.04) for all brain tumors, 0.89 (95% confidence interval = 0.80 to 0.99) for glioma, and not statistically significantly different to 1.0 for meningioma, pituitary tumors, and acoustic neuroma. Compared with never-users, no statistically significant associations were found, overall or by tumor subtype, for daily cellular telephone use or for having used cellular telephones for at least 10 years. Taking use in 2011 as baseline, there were no statistically significant associations with talking for at least 20 minutes per week or with at least 10 years use. For gliomas occurring in the temporal and parietal lobes, the parts of the brain most likely to be exposed to radiofrequency electromagnetic fields from cellular telephones, relative risks were slightly below 1.0.
Our findings support the accumulating evidence that cellular telephone use under usual conditions does not increase brain tumor incidence.
Open access paper: https://bit.ly/UKwomen2022
Preliminary comments on "Cellular Telephone Use and the Risk of Brain Tumors: Update of the UK Million Women Study"
Like the earlier cell phone-brain tumor risk study that used data from the UK Million Women study (Benson et al., 2013), the current study (Schüz et al., 2022) is methodologically unsound due to limited assessment of cell phone use over time and misclassification of exposure. Furthermore, participant attrition from this prospective longitudinal study was very high which likely contributed to the fact that few participants in the main analysis were heavy lifetime cell phone users.
Thus, the study provides no assurance of safety to current cell phone users who use their phones more or start using at a younger age. The results of this study are also limited to the study population, namely middle-aged and elderly women who lived in the United Kingdom (UK).
"Our findings support the accumulating evidence that cellular telephone use under usual conditions does not increase brain tumor incidence."
Roxanne Nelson, Medscape Medical News, March 30, 2022
Long-Term Cell Phone Use Increases Brain Tumor Risk