Table 4.

Visual analog pain score.

	PCAIB group	PCA group	p
Median of average VAS at 24 h	2 (0–3)	2 (0–3)	0.985
Median of worst VAS at 24 h	3 (2–5)	4 (2–6)	0.229
Median of average VAS at 48 h	3 (2–5)	4 (2–6)	0.548
Worst VAS at 48 h	4 (3–6)	5 (2–8)	0.185

Data are presented as median with interquartile range.

Visual analog scale (VAS) score (0 = no pain; 10 = worst pain).

PCAIB: patients with interscalene block in combination with intravenous patient-controlled analgesia.

PCA: patients receiving intravenous patient-controlled analgesia alone without interscalene block.