Document Classification

Section Type: METHODS

Text: Significant independent risk factors for lesions consisted of an impaired initial clinical condition (odds ratio [OR] 2. 63, 95 % confidence interval [CI] 1. 03-6. 73), amount of subarachnoid blood (OR 6. 51, 95 % CI 2. 27-18. 65), nocturnal occurrence of SAH (that is, between 12:01 a. m. and 8:00 a. m.; OR 4. 32, 95 % CI 1. 28-14. 52), fixed symptoms of delayed ischemia (OR 5. 21, 95 % CI 1. 02-26. 49), duration of temporary artery occlusion during surgery (OR 1. 66 per minute, 95 % CI 1. 20-2. 31), and body mass index (OR 1. 13 / kg/m2, 95 % CI 1. 01-1. 28).