[excuse-me]

It depends on quite what you consider a cause of death.

Medical errors officialy account for between 100,000 and 200,00 deaths per year, and between 20-35% of people who die in hospital are discovered at autopsy to have been misdiagnosed. BUT consider you are treating an 80year old man for pneumonia and when he dies the autopsy discovers he had undiagnosed prostate cancer - is that 'really' a medical error death?

Then there are around 100,000 deaths due to hospital infections. 30,000 of them from MRSA alone = twice the number of people who die of AIDS. The rates in nursing homes and other 'medical' facilities are probably much higher but aren't as well monitored or reported.