How Prevalent Is Cancer?

The prevalence of cancer in the U.S. is determined by the number of people who have been diagnosed with any form of cancer at some point in their lives, even if they are now in remission. MORE: Ten common emotional responses to a cancer diagnosis According to the American Cancer Society, the statistics also take into account how long a person survives after their diagnosis and how often the cancer occurs. This means that high-prevalence cancers are common but also have a long survival rate, whereas a common cancer with a short survival rate would have a lower prevalence. For instance, non-Hodgkins lymphoma is rarer than lung cancer but has a higher prevalence because patients generally survive for longer, so therefore there are more of them at any time. The survival rate for cancer patients in 2014 was 64 percent for those who had been diagnosed five or more years ago and 15 percent for those diagnosed 20 or more years ago. Almost half of all cancer survivors (46 percent) were over the age of 70. In 2014, the 10 most prevalent cancers in the U.S. for men were: Prostate cancer                          2,975,970 cases or 43 percent of all male cancers Colon and rectum                        621,430 cases or 9 percent of all male cancers Melanoma                                      516,570 cases or 8 percent of all male cancers Urinary bladder                            455,520 cases or 7 percent of all male cancers Non-Hodgkin's lymphoma         297,820 case
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