Here’s their explanation:

Rieders, the personal injury lawyer, is also a member of Pennsylvania’s Patient Safety Authority, which collects reports of medical errors and studies them.

He puts little significance in the finding that 40 percent of cases involved no error or no injury. He contends that reflects the fact that, because doctors and hospitals are secretive about unfavorable medical outcomes, patients often file lawsuits just to find out what happened.

I thought that it was expensive and time-consuming to bring forward malpractice suits. How many lawyers would go forward with a lawsuit, “just to find out what happened?”