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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: Pain. 2022 Jan 1;163(1):100–109. doi: 10.1097/j.pain.0000000000002311

Table 3:

Quantitative sensory testing results in adolescents.

Average Knee Shoulder
Before Cold Pressor
PPT (N) 15.1 (11.0, 22.1) 12.3 (8.4,17.2) 18.2 (12.6, 26.4)
During Cold Pressor
Pain at 10s (NRS) 5.0 (3.0, 7.0)
Pain at 20s (NRS) 7.0 (5.0, 8.0)
After Cold Pressor
PPT (N) 17.0 (12.7, 23.8) 13.8 (9.8, 19.8) 19.8 (14.4, 30.4)
CPM effect size
CPM (ΔN) 2.3 (−0.5, 5.6) 2.0 (−1.6, 5.4) 2.7(−0.8, 7.4)
CPM (%baseline) 13.3 (−3.6, 39.4) 12.7 (−10.8, 42.9) 15.2 (−5.6, 43.4)
Z score 5.3 3.8 4.9
p value <0.0001 <0.0001 <0.0001

Results indicate median (interquartile range). CPM was computed as relative difference (ΔN) as well as relative change (%baseline). Results are shown for the average knee and shoulder PPTs as well. Z-score and p-values indicates Wilcoxon matched-pairs signed-ranks test comparing PPTs before and after cold pressor. NRS = numeric rating scale, PPT = pain pressure threshold, N = Newton, CPM = Conditioned Pain Modulation.