Table 3.

NRS after surgery.

Time after surgery	Non-ESPB group (n = 27)	ESPB group (n = 26)	P value
0 hour	5 (4–6)	5 (2–6)	0.737
0.5 hour	6 ± 2	5 ± 2	0.225
1 hour	3 (2–3)	3 (2–3)	0.277
2 hours	5 (4–7)	5 (4–6)	0.453
6 hours	3 (3–5)	2 (2–3)	0.019
12 hours	2 (1–4)	3 (2–4)	0.196
18 hours	2 (2–3)	2 (2–3)	0.872
24 hours	2 (1–3)	2 (1–3)	0.792

Values are expressed as the mean (±SD) or median (interquartile range). NRS, Numeric rating score. Postoperative 0, 0.5, and 1 hour are measured in the recovery room.