Fig. 2.
Analgesic requirements in the postanesthesia care unit (PACU), in the first, second, and third 24 h postoperatively and the total requirements from the PACU to the end of the third 24 h postoperatively. (A) Median (interquartile range) intravenous hydromorphone requirements for the patients in the methadone group and those in the methadone/ketamine group with a forest plot of the difference (99% CI) between the groups. (B) Median (interquartile range) number of hydrocodone 5 mg/acetaminophen 325 mg tablets required by the patients in the methadone group and those in the methadone/ketamine group with a forest plot of the difference (99% CI) between the groups.