Fig. 12
From: Osteoarthritis patients exhibit an autonomic dysfunction with indirect sympathetic dominance

Correlations between perceived pain and chronic stress as well as stress-related serum biomarkers and perceived pain and chronic stress. A Correlation between perceived pain and chronic stress (n = 205). B Correlation matrix (heat map) representing the relationships between perceived pain and stress-related serum biomarkers. C Correlation matrix (heat map) representing the relationships between perceived chronic stress and stress-related serum biomarkers. For both correlation matrices n = 82 for E vs. perceived pain, perceived chronic stress, NE, cortisol, DHEA-S, cortisol/DHEA-S; n = 92 for NE vs. perceived pain, perceived chronic stress, cortisol, DHEA-S, cortisol/DHEA-S; n = 125 for cortisol vs. perceived pain, perceived chronic stress, DHEA-S, cortisol/DHEA-S; n = 125 for cortisol/DHEA-S vs. perceived pain, perceived chronic stress, DHEA-S; n = 145 for DHEA-S vs. perceived pain, perceived chronic stress. In each cell, correlation coefficients and respective p Values are provided