Figure 1. Analysis of variance results showing times to emergence, responses to commands, orientation, and discharge from recovery according to anesthetic used and duration of anesthesia. Data are shown as mean +/− SEM; n = number of patients in each observation. *Significant difference between sevoflurane and isoflurane (significant anesthetic effect);[dagger] significant difference with increasing duration of anesthesia;[yen] significant interaction between and anesthetic and duration of anesthesia.