Most people are quite skeptical when I tell them the standard estimate is near zero for the marginal effect of medicine on health… In at least 0.4% of hospital stays, a medical mistake “caused or contributed to a patient’s death.” (more)
CT scans of the heart cause one cancer for every 270 [=0.37%] 40-year-old women who undergo the test, researchers estimate. Yet in a study of CT scans investigating abdominal, hip or pelvic pain, only 9 percent of emergency-room doctors knew that the scans increased cancer risk. (more) [But reasonable doubts have been raised about both figures.]
29,000 future cancers could be related to CT scans received in 2007, with the greatest number of cancers projected in the abdomen and pelvis. The cancer risk was greatest for young patients. (more)
More at Hanson’s blog, OvercomingBias.