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Table 2 Total pain-free period

From: A comparative study of buprenorphine in two different doses as an adjuvant to levobupivacaine in US-guided lumbar plexus block for postoperative analgesia

Variable Group L (n = 30) Group BL (n = 30) Group BH (n = 30) F ratio Statistical significance (ANOVA and Tukey’s HSD post hoc test)
Total pain-free period (in hours) 7.01 ± 0.89 12.42 ± 1.47 12.81 ± 1.49 183.21 0.001*
(L and BL, p = 0.001)
(L and BH, p = 0.001)
(BL and BH, p = 0.480).
  1. Values expressed as mean ± SD
  2. *p value < 0.05
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