Table 3.

Static and dynamic postoperative NRS in both CPBS and No-CPBS groups. Numeric rating scale (NRS) values are expressed as median and IQR

Pain intensity	Total (n = 307)	No-CPBS (n = 221)	CPBS (n = 86)	OR [95% CI]	p
At 0 h
NRS at rest	1 [0, 9]	1 [0, 9]	1 [0, 8]	1.13 [1.00–1.28]	0.075
NRS during movement	1 [0, 10]	1 [0, 10]	2 [0, 9]	1.12 [1.01–1.25]	0.051
At 3 h	Total (n = 306)	No CPBS (n = 220)	CPBS (n = 86)
NRS at rest	1 [0, 7]	1 [0, 5]	1 [0, 7]	1.28 [1.02–1.62]	0.034
NRS during movement	2 [1, 8]	2 [0, 6]	2 [0, 8]	1.31 [1.08–1.59]	0.004
At 6 h	Total (n = 292)	No CPBS (n = 208)	CPBS (n = 84)
NRS at rest	1 [0, 5]	1 [0, 5]	1 [0, 5]	1.24 [0.98–1.56]	0.101
NRS during movement	2 [1, 7]	2 [0, 5]	2 [0, 7]	1.27 [1.06–1.54]	0.041
At 12 h	Total (n = 254)	No CPBS (n = 180)	CPBS (n = 74)
NRS at rest	1 [0, 6]	1 [0, 6]	1 [0, 5]	1.26 [0.99–1.58]	0.036
NRS during movement	2 [0, 7]	2 [0, 6]	2 [0, 7]	1.24 [1.04–1.48]	0.024
At 24 h	Total (n = 156)	No CPBS (n = 111)	CPBS (n = 45)
NRS at rest	1 [0, 5]	1 [0, 4]	1 [0, 5]	1.36 [0.98–1.90]	0.110
NRS during movement	2 [0, 6]	1 [0, 5]	2 [0, 6]	1.35 [1.06–1.71]	0.024
At 48 h	Total (n = 58)	No CPBS (n = 35)	CPBS (n = 23)
NRS at rest	1 [0, 4]	1 [0, 4]	1 [0, 2]	0.86 [0.47–1.56]	0.817
NRS during movement	2 [0, 6]	2 [0, 5]	2 [0, 6]	1.26 [0.90–1.75]	0.279