Thursday, April 21, 2022

Why did JAMA Oncology publish a paper written by a Telecom industry spokesperson?

 JAMA Oncology published a paper on radiofrequency radiation written by a Telecom industry spokesperson.

January 18, 2022 (Updated: Jan 21, 2022, April 21, 2022)

JAMA Oncology recently published a paper, "Radiofrequency Radiation and Cancer: A Review,” that provides a biased, highly selective review of the scientific literature written by David Grimes, a pro-industry science writer and physicist: 

Grimes DR. Radiofrequency Radiation and Cancer: A Review. JAMA Oncol. 2022 Mar 1;8(3):456-461. doi: 10.1001/jamaoncol.2021.5964. Erratum in: JAMA Oncol. 2022 Apr 21;: PMID: 34882171.

Importance: Concerns over radiofrequency radiation (RFR) and carcinogenesis have long existed, and the advent of 5G mobile technology has seen a deluge of claims asserting that the new standard and RFR in general may be carcinogenic. For clinicians and researchers in the field, it is critical to address patient concerns on the topic and to be familiar with the existent evidence base.

Observations: This review considers potential biophysical mechanisms of cancer induction, elucidating mechanisms of electromagnetically induced DNA damage and placing RFR in appropriate context on the electromagnetic spectrum. The existent epidemiological evidence in humans and laboratory animals to date on the topic is also reviewed and discussed.

Conclusions and relevance: The evidence from these combined strands strongly indicates that claims of an RFR-cancer link are not supported by the current evidence base. Much of the research to date, however, has been undermined by methodological shortcomings, and there is a need for higher-quality future research endeavors. Finally, the role of fringe science and unsubstantiated claims in patient and public perception on this topic is highly relevant and must be carefully considered.

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Several experts who have worked in this field for decades and two former U.S. government health officials wrote to me expressing their concerns about this paper:

  • "The mentioned paper contains hardly one page of actual review. It is trying to fixate the old paradigm of not enough energy to cause harm. What a poor and pathetic attempt by the industry proponents."
  • "I could go on at length about the flaws in his arguments ... I hope someone with oncological/epidemiological clout in the community takes this crank to task and highlights the enormous holes and one-sided nature of his argument."
  • "Confidentially, this is garbage. Grimes gets this published because he is a naysayer. He claims to discuss mechanisms, but only discusses his own irrelevant hobby horse.”
  • "Grimes is going to get a bit of scrutiny over this piece. It is really bad."
  • "I think this needs to be retracted."

On December 20, 2021, I sent the journal’s editor-in-chief, Mary “Nora” Disis, MD, my comments along with a recommendation that the journal retract the paper. Her response:


“The JAMA Network journals reserve retractions for articles that have been fabricated, falsified, or plagiarized. There does not appear to be evidence of such misconduct in this article.”

She suggested I submit a (400-word) letter to the editor so the paper’s author could respond to my comments (with a 500-word letter). In my professional opinion, letters to the editor would not suffice to undo the potential damage caused by publication of this industry propaganda piece in a journal sponsored by the American Medical Association.

Since the journal refused to retract the paper despite what I suspect was a flawed peer-review process, the journal should change the paper’s title to accurately reflect its contents (e.g., “Radiofrequency radiation and cancer: Telecom industry talking points”). Moreover, the journal should publish a companion piece written by experts independent of the industry so the journal’s readers are not misled by an article replete with industry sound bites.

My critique of the Grimes paper appears below. 

Also see the following links to articles and letters critiquing Grimes' paper:

Environmental Health Trust. Wireless Industry Spokesperson Pens Article on Wireless Health Effects for Top Academic Journal. January 18, 2022.

Environmental Health Trust. Documentation of inaccuracies, mischaracterizations and critical omissions in David Grimes’ JAMA Oncology review of RFR and Cancer. January 18, 2022. 

Microwave News. Four Reasons Why David Grimes’s RF-Cancer Review Must Be Retracted: Open Letter to Editor-in-Chief, AMA Journals. January 18, 2022
Microwave News. David Robert Grimes Is Not Affiliated with University of Oxford. January 19, 2022 
Paul D. Thacker. Experts Blast David Robert Grimes for His Failure to Understand Science and Love of Self-Citation. Journal of Scientific Practice and Integrity. January 18, 2022

Environmental Health Trust. Call for Retraction JAMA Skewed "Review" on Cell Phone Radio-Frequency Radiation. January 16, 2022. Open letter signed by Devra Davis, PhD, MPH; Linda S. Birnbaum, PhD [former director, National Institute for Environmental Health Sciences]; Ron Melnick, PhD [retired toxicologist, National Toxicology Program]; Dr. Anthony Miller [Professor Emeritus, University of Toronto], and Theodora Scarato.

Kent Chamberlin. Letter to Dr. Mary Disis, JAMA Oncology Editor. January 5, 2022
 
Paul D. Thacker. Physicist David Robert Grimes Finds Conspiracies Everywhere. The Disinformation Chronicle. December 7, 2021

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 A Critique of “Radiofrequency Radiation and Cancer: A Review”

Joel M. Moskowitz, Ph.D.
School of Public Health
University of California, Berkeley

January 3, 2022

Grimes DR. Radiofrequency Radiation and Cancer: A Review. JAMA Oncol. Published online December 09, 2021. doi:10.1001/jamaoncol.2021.5964. https://jamanetwork.com/journals/jamaoncology/article-abstract/2786776

The title of this paper, "Radiofrequency Radiation and Cancer: A Review," is misleading because this is not a literature review. Rather, this is an opinion piece written by David Grimes, a science writer and physicist who has served as a paid spokesperson for the telecommunications industry.

Following is a link to an “informational video” he recorded for Vodafone UK: 


Vodafone UK News Centre. “5G and health: Everything you need to know.” Video (2:23). April 24, 2020. https://newscentre.vodafone.co.uk/5g/5g-and-health-everything-you-need-to-know/

The Grimes paper rehashes arguments I have heard for more than a decade. It reflects the perspective of some physical scientists and engineers since the 1980’s that only ionizing radiation is harmful due to photon energy. Their position is that radiofrequency radiation (RFR), or non-ionizing radiation, is harmless unless its intensity exceeds a certain heating threshold, and the only plausible mechanism for harm from RFR is acute heating. These scientists employ a common industry strategy to manufacture doubt about the science by dismissing thousands of peer-reviewed RFR studies published since the 1980's with the claim that these studies are not methodologically sound or have not been replicated.

Grimes implies that anyone concerned about health effects from 5G or RFR is a conspiracy theorist. 

It is indeed unfortunate that many people distrust science and believe in conspiracy theories. However, distrust in government and the proliferation of conspiracy theories may be attributable to a history of governmental failure to regulate environmental toxins and protect public and environmental health instead of industry profits.

Grimes' paper devotes five paragraphs to the discussion of the “biophysical overview” -- how ionizing radiation can harm living organisms through direct action caused by the energy in photons. 


This overview is a "straw man" argument used for decades to dismiss the peer-reviewed research that found adverse biologic and health effects from exposure to non-ionizing electromagnetic fields including radiofrequency radiation (RFR).  Although Grimes acknowledges that much of the damage caused by ionizing radiation is through indirect action which requires much less energy than direct action, he ignores the substantial body of peer-reviewed research that has found non-ionizing radiation including low-intensity RFR can also cause biologic harm and adverse health effects through indirect actions.

Numerous peer-reviewed papers have been published that discuss biophysical mechanisms for adverse RFR effects. Even though the mechanisms are not fully understood, substantial empirical evidence exists that low-intensity RFR can induce oxidative stress, reactive oxygen species (or free radicals), and stress proteins via indirect action.


In contrast to the paper’s claim, 65% (n=78) of 125 published studies of RFR found significant evidence of DNA damage using the comet assay test.


The paper failed to mention that the Interphone study found significantly increased risk of glioma, a malignant brain tumor, for those who used cellphones 1640 or more hours in their lifetime. This effect held up in sensitivity analyses presented in two appendices to the Interphone study paper. Moreover, Appendix 2 of that paper found a dose-response relationship between number of years of cellphone use and incidence of glioma. Subsequent papers published using Interphone study data provided additional support for increased risk of glioma for heavy cellphone users, especially in proximity to the cellphone’s antenna and on the side of the head where the cellphone was held.

Besides the Interphone study, several case-control studies in Sweden and a French study also found heavy cellphone use associated with increased glioma risk. In addition to the Interphone study, several other case-control studies found that heavy cellphone use increased the risk of acoustic neuroma, a nonmalignant tumor on the nerve from the ear to the brain, on the side of the head where the cellphone was held.


One would not expect a “direct link” or a proportional increase in rates of common brain tumors relative to adoption of cellphones because the latency between exposure to a carcinogen and diagnosis of a solid tumor is often several decades. In the U.S., there have been increases in specific brain tumors in some anatomic locations since cellphones have become popular. Data from the National Cancer Institute’s SEER cancer registry indicates that the incidence of glioblastoma, the most common and serious malignant brain tumor, has increased in recent years while glioma incidence has declined. This suggests that heavy long-term cellphone use promotes tumor growth. A study in the UK obtained similar results.

With the advent of the smartphone about a decade ago, the transmitting antennas in many phones are now located in the bottom, instead of the top, of the phone. Hence, the primary tumor site for those who hold their phones to their ear may now be the thyroid gland instead of the brain. Two Yale University studies found increased thyroid tumor risk with heavy cellphone use. Moreover, the incidence of thyroid cancer has increased substantially in the U.S. and many other countries. Smartphone use may have contributed to this increase.

The Danish cohort cellphone study has been widely discredited (see responses to this study). The WHO International Agency for Research on Cancer dismissed this study in its comprehensive report about RFR cancer risk due to the study’s misclassification of many cellphone users as non-users and its lack of individual exposure data.The UK cohort study also suffered from misclassification because exposure data were only collected at baseline and cellphone use likely changed during the course of the study. Thus, neither of these cohort studies provides a reliable assessment of brain tumor risk among cellphone users.


In Sweden brain tumor incidence increased from 1998–2015. The incidence of glioblastoma increased in Finland from 1990 to 2016 as well as in England from 1995 to 2014.

In 2015 I interviewed the "most knowledgeable person" at the U.S. FDA regarding cell phone radiation risks, the head of the FDA Center for Devices and Radiological Health who served as the agency’s representative to the now-defunct federal Radiofrequency Interagency Working Group. He informed me that every cellphone study that found evidence of harm had at least one methodological problem; hence, the FDA dismissed all of these studies. Apparently, little has changed in the ensuing years at the FDA.

As a researcher for more than 30 years in the School of Public Health at the University of California, Berkeley, I have never read a study without “inherent limitations.” That no study is perfect is not a valid reason to exclude many hundreds of peer-reviewed studies which found significant evidence of harm from RFR or cellphone radiation.

The FDA review paper was not subjected to an independent, external peer review process, unlike the NTP cellphone radiation study discussed next.


Research conducted by the National Toxicology Program (NTP) of the U.S. National Institute of Environmental Health Sciences is considered the “gold standard” by most toxicologists. The $30 million NTP cellphone study was one of the largest animal studies ever conducted by the NTP so to criticize it for ”low-power” is ludicrous. Prior to publication of the NTP reports, the study was subjected to extensive peer review and addressed the concerns of the reviewers. The study’s methodology has also been defended in a peer-reviewed paper.

The NTP study found "clear evidence" of increased tumor incidence from long-term exposure to cellphone radiation in male rats and DNA damage from shorter exposures to male and female rats and mice. Two other major randomized, controlled animal studies, the Ramazzini Institute study and a U.S. Air Force study, support the NTP’s finding that long-term exposure to low-intensity (i.e. non-thermal levels of) RFR can cause cancer.


The NTP study has been attacked by pro-industry scientists because it demonstrates the inadequacy of the RF exposure guidelines promoted by the ICNIRP, the IEEE, and the FCC. The ICNIRP is a self-selected group of scientists who believe that non-thermal exposure to non-ionizing radiation including RFR is harmless. Moreover, these pro-industry scientists have co-opted the WHO EMF Project and biased many national health agency reviews of cellphone radiation health risks according to multiple news stories published by Investigate Europe, a multinational group of investigative journalists.

The IEEE or Institute of Electrical and Electronics Engineers is a professional association for engineers. Their committees that established RFR exposure limits were dominated by engineers and physical scientists with little input from biologists or health scientists.

The FCC, the agency in the U.S. that regulates RFR exposure, has no health expertise and relies on the FDA for advice; however, the FDA does no research on RFR health effects. For more than two decades, the FCC has been “captured” by the telecommunications industry according to a Harvard study. Most FCC commissioners have worked for this industry before and after their appointments to the Commission.

The Grimes paper is a prime example of a common industry tactic when a product or technology is harmful to humans or the environment -- manufacture doubt about the state of the science:

Despite Grimes’ claim, Michael Carlberg and Lennart Hardell applied the Bradford Hill criteria to the peer-reviewed data and concluded that long-term exposure to cell phone radiation is a causal factor for tumor risk. Hardell and his colleagues in Sweden were not the only researchers to conduct case-control studies which found increased brain tumor risk with heavy cellphone use. See also the 13-nation Interphone study and a French study. 

Our 2020 review and meta-analysis of the case-control tumor risk studies (Choi, Moskowitz et al., 2020) went through extensive peer review prior to publication. Moreover, post-publication we defended the paper against every criticism raised in two letters to the editor submitted by ICNIRP scientists and their associates. Our quantitative review of 46 case-control studies “found significant evidence linking cellular phone use to increased tumor risk, especially among cell phone users with cumulative cell phone use of 1000 or more hours in their lifetime (which corresponds to about 17 min per day over 10 years), and especially among studies that employed high quality methods.”


Although more is to be learned regarding mechanisms, there are plausible biophysical mechanisms for carcinogenesis due to RFR exposure. In contrast to the Grimes’ paper, for an evidence-based perspective on the state of the science see a paper published in 2018 in the journal Environmental Pollution by Dominique Belpomme and colleagues, “Thermal and non-thermal health effects of low intensity non-ionizing radiation: An international perspective.”

More than 240 EMF scientists, all of whom have published peer-reviewed papers on electromagnetic fields (EMF) and biology or health totaling more than 2,000 papers and letters in professional journals have endorsed the International EMF Scientist Appeal:


April 21, 2022

JAMA Oncology published three critical letters re: the Grimes' paper and Grimes' response:

Carpenter DO, Hardell L, Sage C. Evidence Base on the Potential Carcinogenicity of Radiofrequency Radiation. JAMA Oncol. 2022 Apr 21. doi: 10.1001/jamaoncol.2022.0928.

Jooyan N, Mortazavi SM. Evidence Base on the Potential Carcinogenicity of Radiofrequency Radiation. JAMA Oncol. 2022 Apr 21. doi: 10.1001/jamaoncol.2022.0931. https://pubmed.ncbi.nlm.nih.gov/35446369/

Naidenko OV. Evidence Base on the Potential Carcinogenicity of Radiofrequency Radiation. JAMA Oncol. 2022 Apr 21. doi: 10.1001/jamaoncol.2022.0925.

Grimes DR. Evidence Base on the Potential Carcinogenicity of Radiofrequency Radiation-Reply. JAMA Oncol. 2022 Apr 21. doi: 10.1001/jamaoncol.2022.0934.






















Monday, March 21, 2022

Cancer risk from exposure to power lines and electrical appliances

Exposure to magnetic fields and childhood leukemia:
a systematic review and meta-analysis of case-control and cohort studies

Christian Brabant, Anton Geerinck, Charlotte Beaudart, Ezio Tirelli, Christophe Geuzaine and Olivier Bruyère. Exposure to magnetic fields and childhood leukemia: a systematic review and meta-analysis of case-control and cohort studies. Reviews on Environmental Health. Published online Mar 15, 2022. doi: 10.1515/reveh-2021-0112.

Abstract

The association between childhood leukemia and extremely low frequency magnetic fields (ELF-MF) generated by power lines and various electric appliances has been studied extensively during the past 40 years. However, the conditions under which ELF-MF represent a risk factor for leukemia are still unclear. Therefore, we have performed a systematic review and meta-analysis to clarify the relation between ELF-MF from several sources and childhood leukemia. We have systematically searched Medline, Scopus, Cochrane Database of Systematic Review and DARE to identify each article that has examined the relationship between ELF-MF and childhood leukemia. We have performed a global meta-analysis that takes into account the different measures used to assess magnetic field exposure: magnetic flux density measurements (<0.2 µT vs. >0.2 µT), distances between the child’s home and power lines (>200 m vs. <200 m) and wire codings (low current configuration vs. high current configuration). Moreover, meta-analyses either based on magnetic flux densities, on proximity to power lines or on wire codings have been performed. The association between electric appliances and childhood leukemia has also been examined. Of the 863 references identified, 38 studies have been included in our systematic review. Our global meta-analysis indicated an association between childhood leukemia and ELF-MF (21 studies, pooled OR=1.26; 95% CI 1.06–1.49), an association mainly explained by the studies conducted before 2000 (earlier studies: pooled OR=1.51; 95% CI 1.26–1.80 vs. later studies: pooled OR=1.04; 95% CI 0.84–1.29). Our meta-analyses based only on magnetic field measurements indicated that the magnetic flux density threshold associated with childhood leukemia is higher than 0.4 µT (12 studies, >0.4 µT: pooled OR=1.37; 95% CI 1.05–1.80; acute lymphoblastic leukemia alone: seven studies, >0.4 µT: pooled OR=1.88; 95% CI 1.31–2.70). Lower magnetic fields were not associated with leukemia (12 studies, 0.1–0.2 µT: pooled OR=1.04; 95% CI 0.88–1.24; 0.2–0.4 µT: pooled OR=1.07; 95% CI 0.87–1.30). Our meta-analyses based only on distances (five studies) showed that the pooled ORs for living within 50 m and 200 m of power lines were 1.11 (95% CI 0.81–1.52) and 0.98 (95% CI 0.85–1.12), respectively. The pooled OR for living within 50 m of power lines and acute lymphoblastic leukemia analyzed separately was 1.44 (95% CI 0.72–2.88). Our meta-analyses based only on wire codings (five studies) indicated that the pooled OR for the very high current configuration (VHCC) was 1.23 (95% CI 0.72–2.10). Finally, the risk of childhood leukemia was increased after exposure to electric blankets (four studies, pooled OR=2.75; 95% CI 1.71–4.42) and, to a lesser extent, electric clocks (four studies, pooled OR=1.27; 95% CI 1.01–1.60). Our results suggest that ELF-MF higher than 0.4 µT can increase the risk of developing leukemia in children, probably acute lymphoblastic leukemia. Prolonged exposure to electric appliances that generate magnetic fields higher than 0.4 µT like electric blankets is associated with a greater risk of childhood leukemia.

Excerpts

Our results have practical implications. Our meta-analysis suggests that exposure to residential magnetic fields higher than 0.4 µT can increase the risk of leukemia in children. Nevertheless, it is important to emphasize the fact that very few homes are exposed to magnetic fields higher than 0.4 µT generated by overhead power lines in high income countries [11, 30]. Moreover, the annual incidence of childhood leukemia is very low and ranges between 35 and 50 cases per million children in western European countries and North America [69]. Since the absolute risk of childhood leukemia is very low and children are rarely continuously exposed to magnetic fields higher than 0.4 µT in high income countries, the increased leukemia risk found in our meta-analysis does not represent a major public health concern in these countries. Magnetic flux densities higher than 0.4 µT are usually within 50 m of overhead power lines [11] even if Crespi et al. [30] found some subjects living between 50 and 200 m away from overhead power lines (over 200 kV) that were exposed to ELF-MF higher than 0.4 µT. Magnetic flux density measurements should be performed if children live within 200 m of overhead power lines to guarantee that they are not exposed to ELF-MF higher than 0.4 µT. In contrast, living more than 200 m away from overhead power lines could be considered a safe distance for children that is not linked to a higher leukemia risk. Our systematic review suggests that children from middle income countries like Mexico and Iran are more likely to be exposed to magnetic fields above 0.4 µT and the risk of leukemia attributable to ELF-MF is probably higher in these countries. It is noteworthy that none of the studies included in our review have been performed in low income countries or in Africa. More research on ELF-MF and childhood leukemia is needed in these countries, particularly in African countries.

Our meta-analyses suggest that exposure to electric appliances like electric blankets and bedside electric clocks increase the risk of leukemia in children. However, it is important to note that the studies that have found an association between these electric appliances and childhood leukemia have been performed more than 20 years ago and our findings should be interpreted based on the electric equipment used today. Electric blankets and bedside electric clocks used at the end of the twentieth century could generate magnetic fields higher than 0.4 µT and children were typically exposed to these electric appliances during several hours in a row [67]. In contrast, hair dryers can also generate magnetic fields higher than 0.4 µT but are usually used during a shorter period of time [67] and we did not find a significant association between the use of hair dryers and childhood leukemia. These findings are relevant today in the sense that the duration of exposure to ELF-MF plays a role and that children should not be exposed to electric appliances that generate magnetic fields higher than 0.4 µT during long periods of time. Importantly, Magne and colleagues [70] have measured personal exposure to ELF-MF in French children between 2007 and 2009. They have found that alarm clocks were the main variable linked to the magnetic field exposure of the children. The proportion of children exposed to magnetic fields higher than 0.4 μT was 3.1% when all children were included in the analysis and 0.8% when the analysis was restricted to children for which no alarm clock had been identified. Taken together, these results and ours suggest that “bedside” electric clocks and alarm clocks that generate magnetic fields higher than 0.4 μT at close distance should be located at least 1 m away from the bed of the child, because the magnetic flux density generated by electric clocks was lower than 0.4 μT at this distance in the study by Preece et al. [71]. To the best of our knowledge, there is no recent update of the study by Behrens et al. [67] that has performed reliable magnetic flux density measurements for electric appliances manufactured recently that generate ELF-MF. Studies with reliable exposure characterization with respect to sources of ELF-MF are needed, especially for the electric appliances manufactured recently that we use on a daily basis.

In summary, our study suggests that exposure to ELF-MF higher than 0.4 µT increases the risk of developing leukemia in children. Acute lymphoblastic leukemia is probably the subtype of leukemia associated with ELF-MF. Prolonged exposure to electric appliances that generate magnetic fields higher than 0.4 µT like electric blankets is associated with a more elevated risk of childhood leukemia. The distance from power lines linked to leukemia is difficult to determine but living more than 200 m away from power lines is likely a safe distance for children not associated with a higher leukemia risk.


Corresponding author: Christian Brabant, WHO Collaborating Centre for Public Health Aspects of Musculo-Skeletal Health and Ageing, Division of Public Health, Epidemiology and Health Economics, University of Liège, Avenue Hippocrate, 13/B-23, B-4000 Liège, Belgium; and Department of Psychology, Cognition and Behavior, University of Liège, Place des Orateurs, 2/B-32, Liège, Belgium, Phone: +32 43 66 25 81, Fax: +32 43 66 28 12, E-mail:

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Pooled analysis of recent studies of magnetic fields and childhood leukemia

Aryana T. Amoon, John Swanson, Corrado Magnani, Christoffer Johansen, Leeka Kheifets. Pooled analysis of recent studies of magnetic fields and childhood leukemia. Environmental Research. Volume 204, Part A, 2022. doi: 10.1016/j.envres.2021.111993.

Abstract

Background

Over forty epidemiologic studies have addressed an association between measured or calculated extremely-low-frequency magnetic fields (MF) and childhood leukemia. These studies have been aggregated in a series of pooled analyses, but it has been 10 years since the last such.

Methods

We present a pooled analysis combining individual-level data (24,994 cases, 30,769 controls) from four recent studies on MF and childhood leukemia.

Results

Unlike previous pooled analyses, we found no increased risk of leukemia among children exposed to greater MF: odds ratio (OR) = 1.01, for exposure ≥0.4 μT (μT) compared with exposures <0.1 μT. Similarly, no association was observed in the subset of acute lymphoblastic leukemia, birth homes, studies using calculated fields, or when geocoding accuracy was ignored. In these studies, there is a decline in risk over time, also evident when we compare three pooled analyses. A meta-analysis of the three pooled analyses overall presents an OR of 1.45 (95% CI: 0.95–2.20) for exposures ≥0.4 μT.

Conclusions

Our results are not in line with previous pooled analysis and show a decrease in effect to no association between MF and childhood leukemia. This could be due to methodological issues, random chance, or a true finding of disappearing effect.

Funding information 

This work was supported by the research grant from Electric Power Research Institute. SETIL was financially supported by research grants received from the Italian Association on Research on Cancer (AIRC), the Ministry for Instruction, University, and Research, the Ministry of Health, the Ministry of Labour, and Piedmont Region.


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Residential mobility and childhood leukemia

Amoon AT, Oksuzyan S, Crespi CM, Arah OA, Cockburn M, Vergara X, Kheifets L. Residential mobility and childhood leukemia. Environ Res. 2018 Mar 22;164:459-466. doi: 10.1016/j.envres.2018.03.016.

Highlights

• Children who moved were older, had younger mothers, and lower SES.
• Non-movers showed stronger associations with EMF exposures and childhood leukemia.
• Adjustment for variables predicting mobility, save dwelling, did not alter results.
• Mobility does not appear to explain observed links between EMF and leukemia. 

Abstract

AIMS: Studies of environmental exposures and childhood leukemia studies do not usually account for residential mobility. Yet, in addition to being a potential risk factor, mobility can induce selection bias, confounding, or measurement error in such studies. Using data collected for California Powerline Study (CAPS), we attempt to disentangle the effect of mobility.

METHODS: We analyzed data from a population-based case-control study of childhood leukemia using cases who were born in California and diagnosed between 1988 and 2008 and birth certificate controls. We used stratified logistic regression, case-only analysis, and propensity-score adjustments to assess predictors of residential mobility between birth and diagnosis, and account for potential confounding due to residential mobility.

RESULTS: Children who moved tended to be older, lived in housing other than single-family homes, had younger mothers and fewer siblings, and were of lower socioeconomic status. Odds ratios for leukemia among non-movers living <50 meters (m) from a 200+ kilovolt line (OR: 1.62; 95% CI: 0.72-3.65) and for calculated fields ≥ 0.4 microTesla (OR: 1.71; 95% CI: 0.65-4.52) were slightly higher than previously reported overall results. Adjustments for propensity scores based on all variables predictive of mobility, including dwelling type, increased odds ratios for leukemia to 2.61 (95% CI: 1.76-3.86) for living < 50 m from a 200 + kilovolt line and to 1.98 (1.11-3.52) for calculated fields. Individual or propensity-score adjustments for all variables, except dwelling type, did not materially change the estimates of power line exposures on childhood leukemia.

CONCLUSION: The residential mobility of childhood leukemia cases varied by several sociodemographic characteristics, but not by the distance to the nearest power line or calculated magnetic fields. Mobility appears to be an unlikely explanation for the associations observed between power lines exposure and childhood leukemia.

Funding: This work was supported by the Electric Power Research Institute. Crespi was also partially supported by the National Cancer Institute at the National Institutes of Health (grant P30 CA16042). Vergara is an employee of the Electric Power Research Institute.


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Occupational ELF-MF exposure and hematolymphopoietic cancers - 
Swiss National Cohort analysis and updated meta-analysis

Huss A, Spoerri A, Egger M, Kromhout H, Vermeulen R; Swiss National Cohort. Occupational extremely low frequency magnetic fields (ELF-MF) exposure and hematolymphopoietic cancers - Swiss National Cohort analysis and updated meta-analysis. Environ Res. 2018 Mar 24;164:467-474. doi: 10.1016/j.envres.2018.03.022.

Highlights

• ELF-MF exposure may affect specific hematolymphopoietic malignancies rather than “all leukaemia”.
• We evaluated effects of occupational ELF-MF exposure on different types of hematolymphopoietic malignancies.
• We observed increased risks of AML if workers were exposed to higher levels and for a longer period of time.
• Risks were in line with meta-analysed findings of previous studies. 

Abstract

PURPOSE: Previous studies have examined risks of leukaemia and selected lymphoid malignancies in workers exposed to extremely low frequency magnetic fields (ELF-MF). Most studies evaluated hematolymphopoietic malignancies as a combined category, but some analyses suggested that effects may be contained to some specific leukaemia or lymphoma subtypes, with inconsistent results.

METHODS: We examined exposure to ELF-MF and mortality 1990-2008 from different types of hematolymphopoietic cancers in the Swiss National Cohort, using a job exposure matrix for occupations recorded at censuses 1990 and 2000. We analysed 3.1 million workers exposed at different levels to ELF-MF: ever-high, only-medium, only-low exposure using Cox proportional hazard models. We evaluated risk of death from acute myeloid leukaemia (AML), chronic myeloid leukaemia, lymphoid leukaemia, diffuse large B-cell lymphomas, follicular lymphoma, Waldenström's macroglobulinemia, multiple myeloma and Hodgkin lymphoma.

RESULTS: Mortality from hematolymphopoietic cancers was not associated with exposure to ELF-MF with the exception of an increase in ever-high exposed men of myeloid leukaemias (HR 1.31, 95% CI 1.02-1.67), and AML (HR 1.26, 95%CI 0.93-1.70). If workers had been high exposed during their vocational training and at both censuses, these HR increased to 2.24 (95%CI 0.91-5.53) and 2.75 (95%CI 1.11-6.83), respectively.

CONCLUSIONS: Our analysis provided no convincing evidence for an increased risk of death from a range of hematolymphopoietic cancers in workers exposed to high or medium levels of ELF magnetic fields. However, we observed an increased risk of acute myeloid leukaemia in workers exposed to high levels for a longer duration. Observed risks are in line with meta-analysed previous reports on ELF-MF exposure and AML risk, with a summary relative risk of 1.21 (95%CI 1.08-1.37).


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Meta-analysis of extremely low frequency electromagnetic fields and cancer risk: 
a pooled analysis of epidemiologic studies

Zhang Y, Lai J, Ruan G, Chen C, Wang DW. Meta-analysis of extremely low frequency electromagnetic fields and cancer risk: a pooled analysis of epidemiologic studies. Environ Int. 2015 Dec 15;88:36-43. doi: 10.1016/j.envint.2015.12.012.

Highlights

• A significant association between ELF-EMF exposure and cancer risk was identified.
• Subgroup analysis revealed increased risk only in North America, especially in United States.
• However, the data from individual European country was contradicted with each other.
• Increased risk was only observed in residential exposure or interview-based surveys.
• Device measured studies obtained no significant association in overall effects.


Abstract

Human-made electromagnetic fields (EMFs), such as nonionizing radiation, are classified into three categories: extremely low frequency fields (< 300 Hz) ....

Studies have suggested that extremely low frequency electromagnetic fields (ELF-EMF) may affect physiological functions in animal models. However, epidemiologic studies investigating the association of ELF-EMF with the susceptibility to cancer yield contradictory results.

In this comprehensive analysis, we conducted a search for case-control surveys regarding the associations of ELF-EMF and cancer susceptibility in electronic databases. A total of 42 studies involving 13,259 cases and 100,882 controls were retrieved. 


All studies were case–control studies, including 23 breast cancer ..., 1 testicular cancer ..., 1 acoustic neuroma ..., 1 endometrial cancer ...., and 3 other cancer cases.

Overall, increased susceptibility to cancer was identified in the ELF-EMF exposed population (OR=1.08, 95% CI: 1.01, 1.15, P=0.02). In the stratified analyses, increased risk was found in North America (OR=1.10; 95% CI: 1.02, 1.20, P=0.02), especially the United States (OR=1.10; 95% CI: 1.01, 1.20, P=0.03). However, studies from Europe contradict these results. Moreover, a higher risk was found to be statistically significantly associated with the residential exposed population (OR=1.18; 95% CI: 1.02, 1.37, P=0.03). Furthermore, an increased cancer risk was found in interview-based surveys (OR=1.16; 95% CI: 1.00, 1.35, P=0.04). In device measurement-based studies, a slight increased risk was found only in premenopausal breast cancer (OR=1.23; 95% CI: 1.01, 1.49, P=0.04).

Our meta-analysis suggests that ELF-EMFs are associated with cancer risk, mainly in the United States and in residential exposed populations. Methodological challenges might explain the differences among studies.


http://1.usa.gov/1R4n2AJ


Excerpts

The overall evaluation conducted by the World Health Organization (WHO) indicated that extremely low-frequency magnetic fields (ELF-EMFs) are possibly carcinogenic to humans (Group 2B), while static electric and magnetic fields and extremely low-frequency electric fields are not classifiable as to their carcinogenicity to humans (Group 3) (Humans, 2002).

ELF-EMFs are mainly generated by power transmission lines, power equipment or appliances (Chen et al., 2013). Because of the rapid development of industry and society, humans are surrounded by various electric devices, and exposure to ELF-EMFs is increasing. Currently, the biological effects induced by ELF-EMFs on human health have become a cause for concern (Grellier et al., 2014 and Zhang et al., 2015).

In general, animal experiments have produced positive results for all known human carcinogens, for which adequate testing has been performed (Humans, 2002). However, it is notable that childhood leukemia is the only cancer outcome for which this association has been consistently found using epidemiological methods (Grellier et al., 2014). It has been hypothesized that experiments designed following the classical two-step initiator–promoter concept of carcinogenesis may not be appropriate for understanding the biological effects of ELF-EMFs, as disease progression may result from complex interactions of genotoxic and non-genotoxic carcinogens (Juutilainen, 2008).

The results in Fig. 2 show that weak association between EMF-ELF exposure and susceptibility to cancer was identified when all the eligible studies were pooled (OR = 1.08, 95% CI: 1.01, 1.15, P = 0.02) regardless of the exposure models or cancer types (Fig. 2).

In the country subgroup analysis, a statistically significant increase in risk was found in North America (15 breast cancer, 3 brain cancer, 1 leukemia and 1 other cancer; OR = 1.10, 95% CI: 1.02, 1.20, P = 0.02), mainly in the United States (14 breast cancer, 3 brain cancer and 1 other cancer; OR = 1.10, 95% CI: 1.01, 1.20, P = 0.03). On the contrary, no statistically significant association between EMF-ELFs and cancer risk was found in a global analysis of European studies (7 breast cancer, 7 brain cancer, 8 leukemia and 5 other cancers) .... An increased risk of cancer was found in Norway (3 breast cancer, 1 brain cancer, 1 leukemia and 1 other cancer; OR = 1.11, 95% CI: 1.02, 1.21, P = 0.02) and France (1 brain cancer and 1 leukemia; OR = 1.38, 95% CI: 1.03, 1.84, P = 0.03), while a decreased risk was found in Sweden (4 breast cancer, 1 brain cancer, 1 leukemia and 1 other cancer; OR = 0.90, 95% CI: 0.84, 0.96, P = 0.001) and England (2 brain cancer, 2 leukemia and 2 other cancers; OR = 0.82, 95% CI: 0.69, 0.96, P = 0.02). In addition, a study from New Zealand also showed an increased cancer risk (1 leukemia; OR = 1.97, 95% CI: 1.08, 3.59, P = 0.03) .... Further subgroup analyses based on cancer type did not reveal any statistically significant associations in all of the analyzed types. When compared by exposure methods, an increased risk was only observed in residential exposure populations (OR = 1.18; 95% CI: 1.02, 1.37, P = 0.03).  


[Note that the 23 studies that examined breast cancer risk yielded a marginally significant association with ELF-EMF exposure (OR = 1.07, p = .06)].

In conclusion, in our study, relevant literature selected from broad databases with stringent standards revealed an increased risk of cancer upon ELF-EMF exposure. However, more quantitative studies will contribute to more comprehensive results in the future.


Wednesday, March 9, 2022

Recent News Stories

Selected news stories I contributed to ....

Barbara Koeppel. Federal Court Instructs FCC to Review Electromagnetic Radiation Standards. The Washington Spectator, Mar 9, 2022.

Fredrik Kaltsveit. Concerned about the 5Gnetwork. Minerva (in Norwegian). Mar 7, 2022.

Joel Moskowitz. 5G, Public Health, and Inconvenient Truths. La Maison Du 21e Siècle (Canada, in French). Feb 8, 2022.

Barbara Koeppel. Wireless Hazards. The Washington Spectator, Dec 28, 2020.

Joel Moskowitz. Regulators Steamroll Health Concerns as the Global Economy Embraces 5G. The Washington Spectator. 46(9):6, September 2020.

Christopher Ketcham. Is 5G Going to Kill Us All? The New Republic, May 8, 2020.

Joel Moskowitz. Cell phones and 5G. The Lisa Wexler Show. WICC (Connecticut), Jan 30, 2020.

Joel Moskowitz. Can wireless earbuds damage your brain? Morning Show / Radio New Zealand, Jan 26, 2020.

Alexandra Stassinopoulos, Supreme Court upholds Berkeley’s ‘Right to Know’ ordinance. The Daily Californian, Dec 13, 2019.

Joel Moskowitz. We Have No Reason to Believe 5G is Safe. Scientific American, Oct 17, 2019.

Simon Hill. Is cell phone radiation actually dangerous? We asked some experts. Digital Trends, Sep 25, 2019.

Joe Mahr. Lawsuit filed against Apple, Samsung after Chicago Tribune tests cellphones for radiofrequency radiation. Chicago Tribune, Aug 29, 2019.

Sam Roe. We tested popular cellphones for radiofrequency radiation. Now the FCC is investigating. Chicago Tribune, Aug 21, 2019.
  
Joel Moskowitz. 5G Health Risks. BBC Radio 5, May 30, 2019 (9 minute news segment).

Markham Heid. Are AirPods and Other Bluetooth Headphones Safe? Medium, Mar 7, 2019.
  
Hiawatha Bray. Could your cellphone’s electromagnetic field make you sick? Boston Globe, Jan 17, 2019.
Lynne Peeples. Should cell phone providers warn customers of health risks? Berkeley says yes. McClatchy Washington Bureau, July 11, 2018.

Mark Hertsgaard and Mark Dowie, THE NATION, March 29, 2018.

Are you carrying your cellphone too close to your body?
Nara Schoenberg, Chicago Tribune, Jan 26, 2017.

Katia Savchuk, California Magazine, Oct 18, 2016.

Markham Heid, TIME Magazine, Sep 28, 2016.

Ryan Knutson, Wall Street Journal, July 6, 2016.

U.S. Cellphone Study Fans Cancer Worries
Ryan Knutson, Wall Street Journal, May 28, 2016.
Joel Moskowitz & Larry Junck, Wall Street Journal, May 22, 2016.

At C.D.C., a Debate Behind Recommendations on Cellphone Risk 
Danny Hakim, New York Times, Jan 1, 2016.

Does Cell-Phone Radiation Cause Cancer?
David Schipper, Consumer Reports, September 24, 2015.


Simon Hill, Digital Trends, April 21, 2015.

Hablan los expertos. ¿Es la radiación del teléfono móvil realmente peligrosa? (Spanish translation)

This West Virginia town has gone radio silent: Greetings from the quiet zone
Steve Featherstone, Popular Science, Mar 16, 2015.

Wireless Radiation: What Scientists Know and You Don’t with Dr. Joel Moskowitz
Patti and Doug Wood, WBAI-FM, Mar 10, 2015.

Mobile Phone Update
Kathryn Borg, Times of Malta, Feb 15, 2015.


Wearable Technology Poses Newfound Health Risks
Karin Wasteson, GlamMonitor, Feb 7, 2015.

Are wireless phones linked with brain cancer risk?
Ronnie Cohen, Reuters Health, Nov 11, 2014.

Experts: Why wearable tech could pose health risks. 
Brooke Crothers, Fox News, Oct 20, 2014.
Descubre los Niveles de Radiación de los iPhone 6 y iPhone 6 Plus de Apple
Patricia Alvarado, iPadizate (Spain), Oct 7, 2014.

Cellphone Boom Spurs Antenna-Safety Worries: Many Sites Violate Rules Aimed at Protecting Workers From Excessive Radio-Frequency Radiation
Ianthe Jeanne Dugan and Ryan Knutson, Wall Street Journal, Oct. 2, 2014.

Precaution or Paranoia? Berkeley May Require Cancer Warning Stickers for Cell Phones 
Sabin Russell, California Magazine, Aug 19, 2014


日用手機30分 腦癌機率爆增3倍 

Wang Zi Yin, Chinese Health Network (Taipei), August 13, 2014