One-fifth of hospitals may be covering up mistakes
24 June 2014 Last updated at 15:28 BST
A fifth of hospital trusts in England may be covering up mistakes which could threaten patient safety, a government review suggests.
The analysis of reporting incidents shows 29 out of 141 trusts were not registering the expected number of safety incidents.
The review said this may be a sign of a "poor" safety culture.
Ministers want to improve transparency and are launching a website where patients can view the performance of individual hospitals on issues such as staffing levels and infection rates.
Sophie Hutchinson reports.