Univariate and logistic regression analysis of factors associated with hypoxemia or hypotension in patients under BIS-guided propofol sedation.

Abbreviations: OR, odds ratio; CI, confidence interval; ASA, American Society of Anesthesiologists.*Patient, procedure, sedative factors were analyzed by univariate Student's t-test and chi-square tests where appropriate.†Oxyhemoglobin saturation ‡Mean arterial pressure ¶Factors significant in the univariant analysis were analyzed and adjusted together by the multivariate logistic modeling.