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Table 1 Absolute and statistical values of psychophysical, psychological and psychophysiological data

From: Rumination and interoceptive accuracy predict the occurrence of the thermal grill illusion of pain

Subjective pain ratings: RESPONDERS NON-RESPONDERS t-tests
Pain intensity: n = 24 (44.4%) n = 30 (55.6%)  
  Mean (SD) Min-Max Mean (SD) Min-Max  
  38.6 (9.8) 25.4–63.3 14.4 (4.3) 2.5–24.6 p = .000** 1
Pain unpleasantness: n = 19 (35.2%) n = 35 (64.8%)  
  35.6 (11.1) 25–64.2 11.6 (8.2) 0–23.8 p = .000**
Trait/ State Questionnaires/ Tests:  
  n = 27 n = 27 t ( df ) p
Anxiety Trait 40.1 (8.7) 26–60 39.8 (7.6) 26–55   
Anxiety State 33.6 (9.7) 0–47 30.8 (9.2) 0–44   
Pain Catastrophizing 17.8 (9.5) 2–31 16.1 (7.7) 1–30  
Rumination 13.1 (4.9) 3–25 10.9 (4.8) 3–20 1.9 (49) .05*
Optimism/ Pessimism 16.1 (2.9) 12–22 15.1 (4.3) 6–23  
Interoceptive accuracy (IA) .75 (.2) .07– .99 .61 (.2) .09–.95 2.0 (49) .05*
Expectancy of pain 56.1 (20) 0–85 59.6 (19.1) 15–100   
Suggestibility (WSS): n = 26 n = 27  
3 positive WSS tests: 5 participants   2 participants   
Positive Initiation test: 12 participants   10 participants   
RT (sec) 47.3 (17.3) 5–60 51.9 (13.5) 11–60  
Confidence 2.9 (.8) 1–4 3.2 (.9) 1–4  
Concentration 3.4 (.7) 2–4 3.4 (.6) 2–4  
Positive Intensification test: 19 participants   18 participants   
RT (sec) 29.5 (22.3) 6–60 36.7 (20.6) 3–60  
Distance (cm) 27.1 (15.4) 5–45 24.1 (15.1) 5–50  
Confidence 3.5 (.5) 2–4 3.3 (.9) 1.5–4  
Concentration 3.4 (.8) 1–4 3.7 (.5) 2–4  
Positive Generalisation test: 10 participants   13 participants   
RT (sec) 52.9 (11.4) 16–60 50.4 (13.8) 15–60  
Confidence 3.2 (.8) 2–4 3.1 (.7) 1–4  
Concentration 3.6 (.6) 2–4 3.6 (.6) 2–4  
  1. 1 p-values < .05* (two-tailed) were considered significant and values < .001** (two-tailed) as highly significant.