Table 3 Scores for the ACR 2011 criteria, pain intensity, pain threshold, and impact of FM

ACR 2011 criteria

 WPI

13.0 ± 3.1

4.1 ± 6.0

<0.01

69

12.4 ± 3.4

3.0 ± 4.2

<0.01

76

 SSS

7.9 ± 2.4

2.9 ± 2.9

<0.01

63

8.0 ± 2.5

3.3 ± 2.5

<0.01

59

VAS Pain (cm)

6.0 ± 1.8

2.2 ± 1.6

<0.01

63

6.3 ± 2.1

2.5 ± 1.7

<0.01

60

Pain threshold (kg/cm²)

1.3 ± 0.8

1.7 ± 0.5

<0.01

31

1.3 ± 0.9

1.9 ± 0.4

<0.01

46

FIQ

 Physical functioning

8.4 ± 7.4

2.1 ± 5.4

<0.01

75

7.4 ± 6.3

1.8 ± 3.9

<0.01

76

 Well-being (days)

0 (0, 2)

6 (5, 7) ^a

<0.01

-

2 (0, 5)

2 (2, 4) ^a

0.70

-

 Work missed (days)

0 (0, 4)

0 (0, 0)

<0.01

-

0 (0, 0)

0 (0, 0)

0.25

-

 Job ability (cm)

6.7 ± 2.7

4.0 ± 2.2

<0.01

40

5.8 ± 2.7

3.9 ± 2.1

<0.01

33

Pain (cm)

7.9 ± 1.9

4.0 ± 2.2

<0.01

49

7.1 ± 2.1

4.6 ± 2.0

<0.01

35

 Fatigue (cm)

7.0 ± 2.7

3.6 ± 2.5

<0.01

49

8.0 ± 2.1

5.1 ± 2.3

<0.01

36

 Morning tiredness (cm)

7.4 ± 2.5

4.1 ± 2.5

<0.01

45

6.9 ± 2.5

5.4 ± 2.5

<0.01

22

 Stiffness (cm)

6.3 ± 3.3

3.6 ± 2.2

<0.01

43

6.9 ± 2.6

4.6 ± 2.3

<0.01

33

 Anxiety (cm)

6.0 ± 3.2

5.1 ± 2.2

0.11

15

6.1 ± 3.1

5.6 ± 2.8

0.28

8

 Depression (cm)

5.7 ± 3.2

4.3 ± 2.4

0.03

25

6.3 ± 2.6

3.3 ± 1.8

<0.01

48

 Total score

61.0 ± 19.8

38.2 ± 16.6

<0.01

37

57.2 ± 14.0

39.3 ± 11.5

<0.01

31