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Table 2 Median self-reported pain and OSBD scores of the two groups of study

From: Perception of venipuncture pain in children suffering from chronic diseases

  Chronic Non-chronic Mann–Whitney-Wilcoxon test p
Median OSBD score 27 (range 18–33) 5 (range 0–33) <0.00001
Median pain score 8 (range 6–8) 2 (range 0–10) <0.00001