"To recap, “How a charity oversells mammography“ pointed out two serious flaws in Komen’s 2011 breast cancer awareness campaign. See an advertisement from the campaign below. Instead of mammography screening being “the key” to surviving breast cancer as the advertisement says, evidence shows that screening may reduce a woman’s chance of dying from breast cancer by a very small amount (0.07 percent for a woman over age 50). And, instead of suggesting that high five-year survival statistics (98% in this advertisement) are evidence that “early detection [through mammography screening] saves lives,” Schwartz writes, “If there were an Oscar for misleading statistics, using survival statistics to judge the benefit of screening would win a lifetime achievement award hands down.” The reason is that it is impossible to separate “lead time” (the time difference between when a cancer can be diagnosed with screening and when it can be felt) from “overdiagnosis” (when cancers are detected that never would have been life threatening or caused symptoms in a persons lifetime.) In this context, there is no correlation between survival statistics and how many people die."