Research Article

Smoking and subarachnoid haemorrhage.

Br Med J 1979; 1 doi: (Published 03 March 1979) Cite this as: Br Med J 1979;1:577
  1. B A Bell,
  2. L Symon


    A retrospective study of 208 patients with ruptured cerebral aneurysms showed a highly significant excess of cigarette smokers among both men and women compared with the expected incidence. Results suggested that continued smoking increases the risk of suffering a subarachnoid haemorrhage (SAH) by a factor of 3.9 for men and 3.7 for women. Other factors besides smoking must affect the genesis of aneurysmal SAH since it is found in non-smokers, but continued cigarette smoking appears to increase substantially the risk of aneurysmal SAH occurring.