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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Crit Care Med. 2014 Oct;42(10):2244–2251. doi: 10.1097/CCM.0000000000000522

Fig. 3. Likelihood (“hazard”) of resolution of delirium by Time Burst Suppressed.

Fig. 3

Association between time in burst suppression and the likelihood (“hazard”) of resolution of delirium after adjustment for time at deep (BIS < 40) sedation, severity of illness, and total exposure to benzodiazepines, propofol, and narcotics. Patients with 100 minutes of burst suppression had a 35% lower likelihood of resolution of delirium compared to those with 1 minute of burst suppression. *Hazard ratios are based on results from a survival analysis adjusting for a fixed time at BIS less than forty and the principal component score comprised of the covariates listed above as described in methods.