Figure 3.

PGA score in EPA group and POA group. EPA group exhibited lower PGA score at 4, 8, 12, and 24 h, but similar PGA score at −24, −2, 36, and 48 h compared with POA group. Comparison between 2 groups was determined by the t test. All repeated comparisons between 2 groups at different time points were corrected by the Bonferroni method. P < .05 was considered significant. ^∗P < .05, ^∗∗∗P < .001. EPA = early preoperative analgesia, NS = nonsignificant, PGA = patient global assessment, POA = postoperative analgesia.