Rates of new diagnoses and rates of death from all cancers combined declined significantly in the most recent time period for men and women overall and for most racial and ethnic populations in the United States, according to a report from leading health and cancer organizations.
The drops are driven largely by declines in rates of new cases and rates of death for the three most common cancers in men (lung, prostate, and colorectal cancers) and for two of the three leading cancers in women (breast and colorectal cancer). New diagnoses for all types of cancer combined in the United States decreased, on average, almost 1 percent per year from 1999 to 2006. Cancer deaths decreased 1.6 percent per year from 2001 to 2006.
These findings are from a report authored by researchers from the National Cancer Institute (NCI), part of the National Institutes of Health, the Centers for Disease Control and Prevention (CDC), the American Cancer Society (ACS), and the North American Association of Central Cancer Registries (NAACCR). The report was published early online Dec. 7, 2009, in the journal Cancer.
Overall cancer rates continue to be higher for men than for women, but men experienced the greatest declines in incidence (new cases) and mortality (death) rates. For colorectal cancer, the third most frequently diagnosed cancer in both men and women, and the second leading cause of cancer deaths in the United States, overall rates are declining, but increasing incidence in men and women under 50 years of age is of concern, the report said.
In the Special Feature section, the authors used modeling projections of colorectal cancer rates to find that, with accelerated cancer control efforts to get more Americans to adopt more favorable health behaviors (such as quitting smoking) and higher use of screening (such as colonoscopy), as well as optimal treatment outcomes for colorectal cancer (such as more effective chemotherapy), there could be an overall colorectal cancer mortality reduction of 50 percent by 2020.
Other highlights from the report show that in men, incidence rates have declined for cancers of the prostate, lung, oral cavity, stomach, brain, colon and rectum, but continue to rise for kidney/renal, liver, and esophageal cancer, as well as for leukemia, myeloma and melanoma. In women, incidence rates decreased for breast, colorectal, uterine, ovarian, cervical and oral cavity cancers, but increased for lung, thyroid, pancreatic, bladder, and kidney cancers, as well as for non-Hodgkin lymphoma, melanoma and leukemia.