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Section Type: RESULTS

Text: There were four independent predictors of symptomatic vasospasm : thickness of subarachnoid clot on computed tomographic scan (odds ratio [OR], 4. 1 ; 95 % confidence interval [CI], 1. 8-10. 0) ; early rise in middle cerebral artery mean flow velocity (MCA-MFV), defined as a value > or = 110 cm/sec recorded on or before post-SAH day 5 (OR, 1. 9 ; 95 % CI, 1. 1-3. 3), Glasgow Coma Scale score < 14 (OR, 1. 8 ; 95 % CI, 1. 1-3. 1) ; and rupture of anterior cerebral or internal carotid artery aneurysm (OR, 1. 9 ; 95 % CI, 1. 0-3. 4).