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Table 4 Explained variance in pain by (backward) regression analysis in femalepatients with fibromyalgia and female controls

From: Factors explaining variance in perceived pain in women with fibromyalgia

   Fibromyalgia (N = 22) Controls (N = 13)
Pain Model Adj. r2 t-score p-value Adj. r2 t-score p-value
Evaluative Model 0.00    0.00   
Affective Model 0.38   0.014    
  EPQ-N   2.69 0.015    
  Baseline cortisol   -2.72 0.014    
  Δ systBT   2.04 0.057 0.36 2.76 0.019
Sensoric Model 0.47   0.004    
  EPQ-N   2.32 0.033 0.49 3.59 0.004
  Baseline cortisol   -2.56 0.020    
  Δ cortisol   -1.74 0.099    
  Δ systBT   3.00 0.008    
Total Model 0.42   0.005    
  EPQ-N   2.36 0.030 0.36 7.68 0.018
  Baseline cortisol   -2.68 0.015    
  Δ systBT   2.79 0.012    
  1. Adj. r2: adjusted r2, Δ systBT: systolic blood pressure after 90 minutes – baseline systolic blood pressure, Δ cortisol: cortisol level after 90 minutes – baseline cortisol