Table 2.

Pain scores in study groups

Group	NRS0*	NRS20*	NRS40*	Rescue analgesia**
Buprenorphine	9.84 (±0.50)	5.22 (±2.66)	2.30 (±2.09)	5 (13.5%)
Morphine	9.78 (±0.55)	4.25 (±2.51)	1.78 (±2.45)	2 (6.25%)

*Mean numerical rating score (±SD) at baseline and after 20 and 40 minutes.

**Number of patients who needed rescue analgesia after 40 minutes.