The amount spent on medical marketing reached $30 billion in 2016, up from $18 billion in 1997, according to a new analysis published in the Journal of the American Medical Association and highlighted by the Associated Press. The number of advertisements for prescription drugs appearing on television, newspapers, websites and elsewhere totaled 5 million in one year, accounting for $6 billion in marketing spending. Direct-to-consumer marketing grew the fastest, rising from $2 billion, or 12 percent of total marketing, to nearly $10 billion, or a third of spending. “Marketing drives more treatments, more testing” that patients don’t always need, Dr. Steven Woloshin, a Dartmouth College health policy expert and co-author of the study, told the AP.