Re: [轉錄] 手機、基地台的電磁波新聞~~
原文摘要，有興趣的可以找來看看
http://jncicancerspectrum.oxfordjournals.org/cgi/content/abstract/jnci;98
/23/1707
Cellular Telephone Use and Cancer Risk: Update of a Nationwide Danish Cohort
Background: The widespread use of cellular telephones has heightened concerns
about possible adverse health effects. The objective of this study was to
investigate cancer risk among Danish cellular telephone users who were
followed for up to 21 years. Methods: This study is an extended follow-up of
a large nationwide cohort of 420 095 persons whose first cellular telephone
subscription was between 1982 and 1995 and who were followed through 2002 for
cancer incidence. Standardized incidence ratios (SIRs) were calculated by
dividing the number of observed cancer cases in the cohort by the number
expected in the Danish population. Results: A total of 14 249 cancers were
observed (SIR = 0.95; 95% confidence interval [CI] = 0.93 to 0.97) for men
and women combined. Cellular telephone use was not associated with increased
risk for brain tumors (SIR = 0.97), acoustic neuromas (SIR = 0.73), salivary
gland tumors (SIR = 0.77), eye tumors (SIR = 0.96), or leukemias (SIR =
1.00). Among long-term subscribers of 10 years or more, cellular telephone
use was not associated with increased risk for brain tumors (SIR = 0.66, 95%
CI = 0.44 to 0.95), and there was no trend with time since first
subscription. The risk for smoking-related cancers was decreased among men
(SIR = 0.88, 95% CI = 0.86 to 0.91) but increased among women (SIR = 1.11,
95% CI = 1.02 to 1.21). Additional data on income and smoking prevalence,
primarily among men, indicated that cellular telephone users who started
subscriptions in the mid-1980s appeared to have a higher income and to smoke
less than the general population. Conclusions: We found no evidence for an
association between tumor risk and cellular telephone use among either
short-term or long-term users. Moreover, the narrow confidence intervals
provide evidence that any large association of risk of cancer and cellular
telephone use can be excluded.
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