Newcastle Hospitals NHS Trust has had the most patients who have been harmed by incidents that should never have happened.
Gregg Easteal was in the studio to explain the figures.
More top news
Young cancer patient Bradley Lowery stole hearts while on the Wembley pitch with the England squad.
Two teenagers found dead at the foot of a sheer drop at Huntcliff have been named as 17-year-olds Alex Yeoman and Harry Watson.
Emma Jesson brings you Sunday's forecast