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Table 4 Comparison of Faces Pain Scale-Revised (FPS-R) scores from IACI in childhood arthritis between treatment groups by gender

From: A randomized study of local anesthesia for pain control during intra-articular corticosteroid injection in children with arthritis

  Male (n = 19) Female (n = 44)
  EMLA® or Numby® Only (n = 9) EMLA® or Numby® + Subcutaneous Buffered Lidocaine (n = 10)   EMLA® or Numby® Only (n = 19) EMLA® or Numby® + Subcutaneous Buffered Lidocaine (n = 25)  
  Change in FPS-R score Change in FPS-R score P-value Change in FPS-R score Change in FPS-R score P-value
All patients (n = 63) 1.0 (0.0–2.0) 0.5 (0.0–2.0) 0.61 2.0 (2.0–5.0) 0.0 (0.0–2.0) 0.0004*
Oligo-arthritis (n = 49) 2.0 (0.0–4.0) 0.0 (0.0–2.0) 0.16 2.0 (2.0–5.0) 0.0 (−1.0–1.0) 0.0006*
  1. Pain scores are reported as Median (IQR: 25th-75th percentiles); Change in FPS-R scores = FPS-R post-procedure – FPS-R baseline; Comparison of the changes in FPS-R scores between treatment groups were examined using Wilcoxon rank sum test. IACI = intra-articular corticosteroid injection. *P < 0.05 was considered statistically significant