Fig. 1.

Sufentanyl consumption before and after volatile anesthetics introduction.

The figure displays the Box-and-whisker plot of the sufentanyl consumption, before and after volatile anesthetics introduction while keeking the same sedation goal. Central grey box represents the values from the lower to upper quartile (25 to 75 percentile). The middle line represents the median. The horizontal line extends from the minimum to the maximal value, excluding outside and far out values. A P value equal or below 0.05 was considered statistically significant.