Table 2. Total postoperative morphine milligram equivalent requirements (mg/kg).

CEA: continuous epidural analgesia, CPNB: continuous peripheral nerve block

Postoperative day	CEA group (n = 41)	CPNB group (n = 36)	P-value
0	0.116 ± 0.206	0.065 ± 0.021	0.19
1	0.179 ± 0.188	0.129 ± 0.113	0.15
2	0.115 ± 0.017	0.112 ± 0.019	0.92
3	0.076 ± 0.086	0.066 ± 0.101	0.65