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Table 2 Correlations between QST measures and clinical pain at baseline among knee OA patients (n = 35)

From: Variability in conditioned pain modulation predicts response to NSAID treatment in patients with knee osteoarthritis

QST Variables Mean Daily Pain Intensity Activity-Related KOOS Pain Neuropathic Pain Symptoms Shuttle Walk Time
PPTh- Trapezius -.40* .37* -.43** -.39*
PPTh- Thumb -.33* .37* -.30 -.32*
PPTh - Knee -.33* .30 -.45** -.42**
Cuff Pain Threshold -.49** .53** -.49** -.56**
Cold Pain Tolerance -.21 .14 -.22 -.32*
Maximum Cold Pain .33* -.13 .24 .16
CPM Index .10 -.10 .28 .08
Temporal Summation .27 -.19 .31* .24
Cold Pain After-Sensations .34* -.33* .39* .25
  1. QST quantitative sensory testing, PPTh pressure pain threshold, KPa Kilopascales, CPM conditioned pain modulation
  2. *p < 0.05 for the group comparison
  3. **p < 0.01 for the group comparison