Contrary to popular belief university-affiliated hospitals do not offer better care than non-affiliated hospitals, according to a new study by medical rankings service CareChex, which evaluated 118 university hospitals in the US.

When overall quality of care was taken into account, notable facilities such as Stanford Hospital, George Washington University Hospital, Johns Hopkins Hospital and the University of Chicago Medical Centre performed in the bottom 25% of all US hospitals.

For orthopaedic care 90% of university hospitals performed below the national average, and for general surgery 85% of university hospitals performed below the national average.

However, 43% of university hospitals ranked in the top 10% for cancer care, while 17% ranked in the top 10% for overall care.