Dr. Loch Macdonald, St. Michael's Hospital (image) St. Michael's Hospital Share Print E-Mail Caption Americans in the highest socioeconomic groups have a 13 percent greater chance of surviving a kind of stroke known as a subarachnoid hemorrhage than those in the lowest socioeconomic groups, a new study has found. However, social and economic status have no bearing on mortality rates for subarachnoid hemorrhages, or SAH, in Canada, according to the study led by Dr. Loch Macdonald, a neurosurgeon at St. Michael's Hospital in Toronto. Credit Courtesy of St. Michael's Hospital Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.