jlc95010 said:
But how do you explain the increased incidents of cancer shown in these studies?
From Medscape:
http://www.medscape.com/viewarticle/540146_3
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Note that until cell phones became popular brain cancer rates were rising. As cell phone use increased brain cancer rates began to fall. They fell in urban areas despite rising in rural areas and they fell more among young people than among older people, just the opposite of what you would expect if cell phone radiation caused cancer. I am not suggesting however, that cell phones reduce the risk of brain cancer.Brain Cancer Trends
The age-adjusted incidence rates of brain cancer by the year of diagnosis from 1973 to 2001 are demonstrated in Fig. 3. With Joinpoint regression analysis, two distinct trends were observed for this period. The incidence of brain cancer increased from 1973 to 1987 (APC 1.68%; 95% CI 1.22–2.13), followed by a decline thereafter (APC –0.44%; 95% CI –0.84 to –0.03). The results of Join-point regression analyses of brain cancer trends by age, sex, race, and rurality are summarized in Table 1 . The incidence rates of brain cancer decreased among men and women after the years 1986 and 1987, respectively. Although the decline was statistically significant among the women, it did not reach significant levels among the men. Analysis by age revealed that the elderly had the steepest rise in incidence rates until 1985, and the rates have been stable since then. The incidence rates among young adults show a statistically significant decline after 1987. Currently, Caucasians and African-Americans are experiencing falling and rising trends, respectively, both of which are not statistically significant. Although the annual incidence rates are declining in metropolitan counties, they are on the rise in nonmetropolitan counties. Histological diagnoses that have demonstrated rising trends are GBM, oligodendroglioma, anaplastic astrocytoma, medulloblastoma, and mixed glioma; those with falling trends are astrocytoma NOS and malignant glioma (Figs. 4 and 5). Time-trend analysis of GBM revealed that its incidence declined until 1979 (APC –5.58%; 95% CI –8.91 to –2.12), followed by a significant rise until 1991 (APC 2.88%; 95% CI 1.47–4.30; Fig. 4). After 1991, there has been a gradual rising trend that has not reached statistical significance (APC 0.321%; 95% CI –1.00 to 1.66).