Dr Rodney Croft

Director of the Australian Centre for Electromagnetic Bioeffects Research, an NHMRC Centre of Research Excellence at the University of Wollongong

高周波の健康影響に関する研究としては重要だと思いますが、査読者によるいくつかのコメントや付録Ｇに対する詳細な検討がなされておらず、その点が残念です。具体的には、高周波曝露されたラットが対照群に比べて長命だった理由（一般には悪性腫瘍の発生増加は寿命を縮めると考えられる）、対照群に全く発がんが認められなかった点（通常はありえない）、線量とその影響に相関がみられず結果の信頼性が低い点（単なる偶然の結果にすぎない可能性もある）などが詳細に検討されていません。

今回の結果は、自然界でみられるヒトの発がん率とも、人工的に曝露レベルを高くした多くの実験的研究結果とも一致していません。つまり、今回の報告では、携帯電話による高周波曝露が健康に影響を与えないとする意見を覆すことはできないでしょう。

原文

" The National Toxicology Program (NTP) study addressed a range of important health-related endpoints in rats and mice and is an important contribution to the radiofrequency (RF) emission health debate.

Unfortunately there is not sufficient detail in the present report to evaluate it fully, particularly given a number of criticisms by the reviewers (and described in Appendix G of the report). Of particular note is that the rats treated with RF lived longer than the controls (which is counter intuitive given that the increased tumour rates normally lead to reduced lifespan), the controls did not have ‘any’ tumours (which is also not what is normally found), and the lack of clear dose-response relationships raises the possibility that the results may merely be ‘false positives’ (particularly given the large number of statistical comparisons, the one significant result would appear consistent with chance).

It is also noteworthy that the results do not appear consistent with the cancer rates within the human population, nor with the majority of other experimental research, even at the very high exposure levels, which are many times higher than humans are exposed to.

The NTP study will thus need to be fully evaluated once further details become available, and considered within the context of RF emissions science as a whole. At present though, and particularly given a range of uncertainties regarding its results, the NTP report does not provide reason to move from the current scientific consensus that mobile phone-like exposure does not impact health.”