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Table 5 Relationship between CPM, trait-anxiety level and pain on the B-PCP:S (n = 47)

From: Association of anxiety with intracortical inhibition and descending pain modulation in chronic myofascial pain syndrome

Source

Type III sum of squares

df

Mean square error

F

P

Corrected model

24327.85

4

26219.170

2.05

0.10

Dependent variable: Percentage of change in the pain score on numerical pain scale during CPM-TASK a

Parameter

β

SEM

T

P

Partial eta squared

Intercept

458.80

221.72

2.07

0.04

0.02

B-PCP:Sb

−10.56

3.82

−2.76

0.01

0.15

Trait-anxiety

−21.55

10.72

−2.01

0.05

0.09

B-PCP:S* Trait-anxiety

0.39

0.17

2.38

0.02

0.12

Analgesic dose used weeklyc

−0.03

0.05

−0.07

0.94

0.00

  1. a Conditional pain modulation (CPM).
  2. b Profile of Chronic Pain: Screen for a Brazilian population (B-PCP:S).
  3. b Number of days analgesics were used per week in the last three months (< 4 times/≥ 4 times).