Double Standard:
Diesel Exhaust vs. Secondhand Smoke
Rajiv Bahia, Peggy Lopipero and Allan H. Smith
Epidemiology 1998;9:84-91
Debra T. Silverman
Epidemiology 1998;9:4-5
In 1993, EPA labeled secondhand smoke a "known human carcinogen." This was based on its analysis of about 30 epidemiologic studies of secondhand smoke and lung cancer. But 80 percent of the studies did not support EPA's decision.
So how did EPA justify its conclusion?
EPA performed a "meta-analysis" of the studies. That is, the relative risks from the 30 studies were weighted, pooled and an "average" relative risk of 1.19 was calculated. And EPA concluded that secondhand smoke increased lung cancer risk 19 percent.
But this result was criticized because for a number of reasons, including:
EPA (and the rest of the junk science world) chose to ignore these criticisms.
Now, consider a new study just published in the journal Epidemiology on diesel exhaust and lung cancer.
Researchers from the University of California (San Francisco) and the University of California (Berkeley) did a meta-analysis of 23 epidemiologic studies of diesel exhaust and lung cancer (Note: 7 other diesel exhaust/lung cancer studies were excluded from the meta-analysis, 6 of which did not support the researcher's ultimate conclusion).
The researchers reported a relative risk of 1.33 (95 percent confidence interval 1.24. - 1.44).
But in an accompanying editorial, the National Cancer Institute's Debra T. Silverman wrote:
Skepticism regarding the carcinogenicity to the lung of diesel exhaust in humans arises from three main concerns about the epidemiologic evidence. First, and probably most important, the magnitude of the effect observed in most studies is low, with relative risks (RRs) typically under 1.5. Second, of the 30 studies conducted on the relation between diesel exhaust and lung cancer, only four have obtained either quantitative data on current exposure or semiquantitative data on historical exposure. None has obtained quantitative data on historical exposure, the measure most relevant to the development of lung cancer...Third, the effect of cigarette smoking has been controlled in only about one-half the studies...
[The authors] conclude that the data support a causal association between diesel exhaust and lung cancer in humans. Has science proven causality beyond any reasonable doubt? Probably not. The repeated finding of small effects, coupled with the absence of quantitative data on historical exposure, precludes a causal interpretation.How would Mr. Rogers would put it? "Can you say 'double-standard'?"
Are you a victim of propaganda?
Lets see, shall we?
SMOKING DOES NOT CAUSE LUNG CANCERS (According to WHO/CDC Data)*
PRIMARY SMOKING AND LUNG CANCER
THERAPEUTIC EFFECTS OF SMOKING AND NICOTINE
SMOKING AND SIDS
SMOKING AND BREAST CANCER
SMOKING, ULCER, COLITIS, STOMACH AND COLON CANCER
SMOKING AND PARKINSON
SMOKING AND ASTHMA
THE ANTI-SMOKERS LIED ABOUT OSTEOPOROSIS AND ABOUT ESTROGEN
COVER-UP: NON-SMOKING IS A RISK FOR THROMBOEMBOLISM
And whew, does the list go on!Some truth (again, there is a LOT OF SCIENTIFIC RESEARCH out there) and the results of all of this:
THE REST OF THE STORY: TOBACCO NEWS ANALYSIS AND COMMENTARY
Blog of a physician who specialized in preventive medicine and public health.
American Cancer Society Still Misrepresenting Scientific Evidence; Is it in a Position to Be Attacking Others for Scientific Misconduct?
*pleasenote* DEAF MAN ATTACKED FOR SMOKING AT BUS STATION
So the question you have to ask yourselves now is WHY ARE YOU BEING LIED TO? *hmm*
THE MONEY TRAIL
PHARMACEUTICAL MULTINATIONALS: BUYING GOVERNMENTS, SELLING ANTISMOKING
Then again, it may just come down to a smoke screen, giving the masses something to focus on instead of what is really going on in this world that requires our attentions and actions.
Who knows?
So ask yourself this, are you a victim of propaganda?
*sign* http://www.thepetitionsite.com/1/human-rights-smokers-should-be-treated-equally
THE SUBJECT OF TOLERANCE (A YouTube video, South Park Style)
The above has been an mental exercise of introspective thought based upon the use of media and the masses as well as the reasoning thoughts of the individual.
The reactions should be quite revealing, yes?Cheers!
Melissa
Imported from external blog