digital art for hospital mortality and survival rates Health by Clarissa Bye Premium Content Subscriber only What are your chances of dying if you go to hospital after a heart attack, a stroke, or even an operation to fix a broken hip? Surprisingly, this can vary markedly depending on what hospital you are taken to. Health boffins have begun measuring this mortality rate in an effort to see how care can be improved - particularly after patients are discharged. The NSW Bureau of Health Information (BHI) has created a "30-day mortality ratio" of seven common conditions such as strokes, pneumonia and heart problems, which account for 11 per cent of acute hospitalisations.