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. 2019 Apr 12;98(15):e15159. doi: 10.1097/MD.0000000000015159

Figure 3.

Figure 3

The number of bolus doses administered to a patient. The numbers of the bolus dose of PCA administered to the patient after surgery was significantly lower in group A (1 hour = 1.14 ± 0.9, 2 hours = 0.85 ± 0.7) than in group B (1 hour = 1.85 ± 0.7, 2 hours = 1.45 ± 1.0) from immediately after the operation until 2 hours after the operation (1 hour, P = .008; 2 hours, P = .03), but there was no significant difference between the 2 groups after 3 hours. ∗ P < .05 significant difference between groups.