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Table 1 Pain VAS in the low vs. high HR change groups.

From: Nitrous Oxide sedation for intra-articular injection in juvenile idiopathic arthritis

  Patient VAS Parent VAS Physician VAS* Nurse VAS*
Low ΔHR 2.75 3.00 2.25 3.00
High ΔHR 5.50 5.00 4.50 5.00
  1. VAS: Visual analog scale; HR: heart rate
  2. *P for physicians- (p = 0.006) and nurses (p = 0.010) between the low and high ΔHR groups