Analgesics Group 0
Control
(n = 40)
Group 1
Intervention
(n = 40)
P value
n (%) Dose (mg) n (%) Dose (mg) P1 P2
Morphine 32 (80) 5.7 ± 1.4 31 (78) 5.5 ±1.2 0.78 1.00
Hydromorphone 5 (13) 0.8 ± 0.2 3 (8) 1.5 ± 0.2 0.45 0.03*
Mepiridine 2 (5) 60 ± 9.5 3 (8) 47 ± 10.5 0.64 0.32
P1: compares significance between number of patients
P2: compares significance between dose of opioids
*Statistically significant
Table 3: Intra-operative opioid analgesic consumption (mean ± SD)