Table 2.

Postoperative NRS at rest over the first 24 postoperative hours in patients who underwent cholecystectomy from February 1 to April 30, 2016, median (25th–75th percentile)

Characteristics	PVB group	Control	P-value
NRS at 30 min	0 (0)	5 (4–6)	<0.001
NRS at 1 h	1 (1–2)	4 (3.5–5.5)	<0.001
NRS at 2 h	2 (1–3)	5 (4–5)	<0.001
NRS at 6 h	2 (2–3)	4 (3–5.5)	<0.001
NRS at 24 h	4 (3–6)	5 (5–7)	0.002

Abbreviations: NRS, numerical rating scale; PVB, paraventricular block.