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Table 2 The improvement in VAS at 2, 4, and 8 weeks as compared to baseline values in each group

From: Intra-articular corticosteroid injection and genicular nerve block under ultrasound guidance in pain control of knee osteoarthritis

VAS Baseline 2 weeks 4 weeks 8 weeks
IACSI (n = 20)     
 Min.–Max 75–95 30–50 35–55 70–90
 Mean ± SD 87.10 ± 6.32 42.20 ± 4.97 47.70 ± 5.39 81.50 ± 6.51
p   < 0.001* < 0.001* < 0.804
GNB (n = 20)     
 Min.–Max 80–95 15–40 20–45 60–90
 Mean ± SD 87.75 ± 3.68 29.25 ± 6.13 34.25 ± 6.13 78.50 ± 6.71
p   < 0.001* < 0.001* < 0.764
  1. p: p value for comparing between baseline and each period in two groups
  2. *: Statistically significant at p ≤ 0.05