Figure 2.

Analysis of covariance of percent time nonvocalizing on years of age, adjusted for sedation type. Ketamine sedation is represented by closed circles (●) and a solid regression line (—) while medazolam/fentanyl is represented by open circles (∘) and a dotted regression line (…). Ketamine sedation is associated with a greater percentage of time nonvocalizing compared with medazolam/fentanyl (P = .002), independent of the effect of age. The interaction of sedation type with age was not statistically significant (P = .31).