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Table 2 Preliminary questionnaire data (Psychological questionnaires)

From: Muscle activity and acute stress in fibromyalgia

 

FM

(n = 51)

Control

(n = 31)

p-value

ACR2016 symptom severity scale

 Mean (SD)

8.12 (2.44)

2.35 (1.56)

< 0.001

 Median [Min, Max]

8.00 [4.00, 12.0]

3.00 [0, 6.00]

 

ACR2016 widespread pain index

 Mean (SD)

11.3 (4.19)

1.48 (1.77)

< 0.001

 Median [Min, Max]

11.0 [4.00, 19.0]

1.00 [0, 8.00]

 

FIQ score

 Mean (SD)

44.2 (14.8)

15.3 (5.48)

< 0.001

 Median [Min, Max]

47.3 [8.57, 70.1]

13.2 [10.0, 32.3]

 

 Missing

1 (2.0 %)

0 (0 %)

 

PCS score

 Mean (SD)

17.6 (10.2)

2.65 (3.56)

< 0.001

 Median [Min, Max]

16.0 [0, 48.0]

1.00 [0, 13.0]

 

PSS score

 Mean (SD)

19.5 (7.74)

7.74 (4.15)

< 0.001

 Median [Min, Max]

20.0 [3.00, 35.0]

7.00 [2.00, 19.0]

 

 Missing

1 (2.0 %)

0 (0 %)

 

STAI-A score

 Mean (SD)

40.7 (9.85)

29.2 (3.81)

< 0.001

 Median [Min, Max]

39.0 [27.0, 73.0]

29.0 [23.0, 38.0]

 

STAI-B score

 Mean (SD)

45.0 (9.68)

28.3 (5.27)

< 0.001

 Median [Min, Max]

46.0 [25.0, 64.0]

27.0 [21.0, 44.0]

 

 Missing

3 (5.9 %)

1 (3.2 %)

 
  1. FM Fibromyalgia patients, p-value: Mann-Whitney U test, ACR2016 American College of Rheumatology 2016 modified diagnostic criteria, FIQ Fibromyalgia Impact Questionnaire, PCS Pain Catastrophizing Scale, PSS Perceived Stress Scale, STAI-A State-Trait Anxiety Inventory A (State Anxiety), STAI-B State-Trait Anxiety Inventory B (Trait Anxiety), SD standard deviation