Table 3.

Effective patient-controlled intravenous analgesia usage count

	ESPB (n=20)	PVB (n=22)	P+E (n=20)	Pairwise comparisons (P)
				ESPB vs PVB	ESPB vs P + E	PVB vs P + E
0-12 h	2 (1-2)	1 (1-2)	1 (0-1)	0.080	<0.001*	0.034
12-24 h	1 (0-1.75)	0 (0-1)	1 (0-1)	0.285	0.718	0.478
24-48 h	0 (0-0.75)	0 (0-0.25)	0 (0-0)	0.865	0.429	0.275

Data are presented as median (IQR). *P<0.0167 when ESPB compared with P + E. IQR: Interquartile range, ESPB: Erector spinae plane block