As reported in USA Today, one in eight people with advanced cancer turned down recommended care because of the cost. Among patients with incomes under $40,000, one in four in advanced stages of the disease refused treatment. Of late-stage colon cancer patients, 12% spent more than $25,000 out of pocket, according to the survey, in which 1,767 people answered an online questionnaire. This type of survey isn't considered scientifically rigorous, because it didn't use a random sample of people. But its findings are similar to a 2006 study in Cancer, which found that cost caused more than 20% of all cancer survivors — not just those with advanced cases — to delay or miss needed care.