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Table 4 Correlational analyses between CPM effects and QST parameters at day 1 and day 2

From: Short-term test-retest-reliability of conditioned pain modulation using the cold-heat-pain method in healthy subjects and its correlation to parameters of standardized quantitative sensory testing

 

Pearson’s correlation coefficient

 

QST vs. early CPM effect day 1

QST vs. early CPM effect day 2

QST vs. late CPM effect day 1

QST vs. late CPM effect day 2

CDT (log)

total

0.008 (p = 0.969)

−0.080 (p = 0.704)

−0.143 (p = 0.497)

0.311 (p = 0.131)

WDT (log)

total

−0.175 (p = 0.402)

−0.017 (p = 0.935)

−0.125 (p = 0.553)

−0.133 (p = 0.528)

TSL (log)

total

−0.136 (p = 0.517)

−0.096 (p = 0.648)

0.108 (p = 0.608)

0.088 (p = 0.675)

CPT (°C)

total

0.059 (p = 0.778)

0.158 (p = 0.449)

0.055 (p = 0.795)

0.349 (p = 0.088)

HPT (°C)

total

−0.103 (p = 0.624)

−0.087 (p = 0.679)

0.065 (p = 0.757)

−0.401 (p = 0.047)

MDT (log)

total

−0.103 (p = 0.624)

0.042 (p = 0.840)

0.057 (p = 0.787)

0.122 (p = 0.561)

MPT (log)

total

0.210 (p = 0.314)

−0.020 (p = 0.923)

0.203 (p = 0.330)

−0.213 (p = 0.308)

MPS (log)

total

0.049 (p = 0.815)

−0.202 (p = 0.333)

−0.142 (p = 0.500)

0.020 (p = 0.926)

WUR (log)

total

−0.118 (p = 0.574)

−0.200 (p = 0.338)

−0.042 (p = 0.843)

0.211 (p = 0.312)

VDT (n/8)

total

0.317 (p = 0.122)

0.336 (p = 0.100)

0.217 (p = 0.297)

−0.129 (p = 0.538)

PPT (log)

total

−0.085 (p = 0.687)

−0.011 (p = 0.959)

0.184 (p = 0.380)

−0.337 (p = 0.100)

  1. Correlational analyses between each QST parameter (logarithmically transformed, except for CPT HPT, VDT) and the CPM effect’s magnitude were conducted using Pearson’s Correlation Coefficient for measurements at day 1 and day 2. CDT Cold Detection Threshold, CPT Cold Pain Threshold, HPT Heat Pain Threshold, MDT Mechanical Detection Threshold, MPS Mechanical Pain Sensitivity; MPT Mechanical Pain Threshold, PPT Pressure Pain Threshold, QST Quantitative Sensory Testing, TSL Thermal Sensory Limen; VDT Vibration Detection Threshold, WDT Warm Detection Threshold, WUR Wind up Ratio
  2. Level of significance after Bonferroni correction: p<0.001