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Table 2 Secondary outcomes before matching. Data are presented as means and 95% confidence intervals

From: Interscalene brachial plexus block for surgical repair of clavicle fracture: a matched case-controlled study

 Control group
(n = 76)
US-ISB group
(n = 50)
p value
Perioperative Sufentanil administration (μg)45 (42–49)17 (15–18)< 0.001
Pain scores at rest at 2 postoperative hours (NRS, 0–10)2.2 (1.8–2.6)0.6 (0.2–1.1)< 0.001
I.v. morphine equivalent consumption at 24 postoperative hours (mg)16.7 (14.6–18.7)6.9 (5.1–8.8)< 0.001
Pain scores at rest at 24 postoperative hours (NRS, 0–10)2.0 (1.5–2.4)2.5 (1.9–3.1)0.12
Rate of PONV within 24 postoperative hours17%4%0.02
  1. NRS numeric rating scale, PONV postoperative nausea and vomiting