They called their organization The NNT, a simple statistical concept: “Number Needed to Treat.” Since starting in 2010, NNT (https://www.thennt.com) has surveyed more than 275 drugs and therapies in fields ranging from cardiology to endocrinology to dermatology. They rated each of these drugs and therapies on a color scale: green (the therapy or drug has clear benefits); yellow (it is unclear if it has any benefits); red (no benefits); and black (the treatment is more harmful to patients than helpful).
