Figure 4.

The median passive P _CRIT values for each sedation condition are shown in Figure 4. The median passive P _CRIT for ketamine [interquartile range], 0.08 [−5.51 to 1.20] cm H₂O, was not significantly different compared to that of propofol −0.32 [−1.41 to −0.19] cm H₂O (mean difference, −2.59; 95% CI −4.52 to −0.66) (p = .016) and dexmedetomidine −0.28 [−0.95 to −0.03] cm H₂O (mean difference, −0.13; 95% CI −1.37 to 1.11) (p = .045). There was no significant difference in P _CRIT between propofol and dexmedetomidine (p = .812)