These researchers looked at mortality rates since 1955 in specific age groups, finding that U.S. cancer mortality rates have decreased overall, first in children and younger adults then more recently, in older Americans as well.
The youngest age group showed the most improvement, with a 25.9 percent decline in death rates for each successive decade, while death rates in the older age groups decreased a respectable 6.8 percent each decade. The difference likely reflects early advances in cancer treatment affecting malignancies, such as childhood leukemia, seen in younger people.
Starting in 1925, people born in later decades were less likely to die of cancer than people born in preceding decades. The death rate from cancer for people aged 30 to 59 and born between 1945 and 1954 was 29 percent lower than for people in this age group born 30 years earlier.
"The progress we've made was helpful first to younger individuals and then, as they got older, they continued to enjoy lower rates of mortality, but it's not until just recently that this became apparent in the average rates that people always talk about," Kort said. "We've made so much progress against cancer, we have transformed the mortality experience across the entire life span starting with people born 50 years ago."
This is despite the fact that incidence has remained stable or increased, except in the case of lung cancer.
"People quitting smoking has had an enormous impact. We have also made major inroads in cervical cancer death rates," Brooks said.
The authors pointed to successful chemotherapy regimens for childhood leukemias, then in lymphomas and testicular cancers of early adulthood.
Now, screening programs for breast, prostate and colon cancer are also starti
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