Neither does the survey count [in situ] melanoma skin cancers, with which the American Cancer Society estimates 31,400 Americans will be diagnosed in 2001. Adding these cases would increase the rate for skin cancer by 56%.
Changes in diagnostic procedures also affect incidence rates. In explaining fluctuations in the incidence of prostate cancer, for example, the National Institutes of Health noted that with the advent of Prostate Specific Antigen (PSA) screening in the late 1980s, there was a spike in the incidence of prostate cancer, not because more men were suddenly getting the disease above the normal increase, but because previously undetected cancers were suddenly being diagnosed. Now that the prevalent cancers have been detected, what looks like a decline in incidence in the 1990s, they say, is not due to fewer men getting prostate cancer, but is a decline relative only to the abnormally high number of tests and diagnoses made just previous to that period.
2. It should be a crime for any corporation or corporate executive to knowingly introduce a new carcinogen into the environment.
3. With a comprehensive programme of prevention, rather than damage control, we could drive cancer rates back down to the relatively low rates of the 1950s. For example, the budget for occupational cancer in most cancer institutions is under 1 percent of the total budget. Yet occupational cancers comprise at least 10 percent of all cancers and are among the most preventable of all cancers.
2. Over the 20 year 1995-2005, in spite of billions of dollars spent on research, cancer has moved from the number 8 killer of people in the USA to the number 2 killer. Since 2003, cancer has been the leading cause of death in people under age 30 in the USA.