Abstract:Some aspects of the natural history of subarachnoid haemorrhage. D. Christie,Aust. N.Z. J. med., 1981, 11, pp. 24–27.In a population‐based stroke incidence study, 27 cases of subarachnoid haemorrhage were identified, an incidence rate of 26.4/105person years at risk. Subarachnoid haemorrhage comprises but a small part of the burden of cerebrovascular disease, but all appear to be admitted to general hospitals. The overall survival rate was 44% to six months, in those cases treated surgically the survival rate was 63%. Of more importance, by six months only 19% were free of residual handicap; in terms of this endpoint, those cases treated surgically were at no advantage as compared with those treated conservati