Patient-Controlled Epidural Levobupivacaine with or without Fentanyl for Post-Cesarean Section Pain Relief

Figure 3

Incidence of adverse events in group A (gray column) and group B (black column). All events were mild in severity; ^∗𝑃=0.019, ^∗∗𝑃=0.0001, and ^∗∗∗𝑃=0.0045.