Nearly a third of NHS trusts using Palantir's health data platform are performing fewer patient procedures than before it went live, according to figures analyzed by campaign group Foxglove. The research – based on a series of Freedom of Information (FOI) requests – also found that a single body, Chelsea and Westminster Hospital NHS Foundation Trust, accounted for 84 percent of the fall in outpatient waiting lists, while 16 trusts use the tool p…