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Table 2 Pain scores in study groups

From: Sublingual buprenorphine for acute renal colic pain management: a double-blind, randomized controlled trial

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%)
  1. *Mean numerical rating score (±SD) at baseline and after 20 and 40 minutes.
  2. **Number of patients who needed rescue analgesia after 40 minutes.