Table 4 Summary of questionnaire and neuropsychological test data in relation to expression of musculoskeletal symptoms

GSS

3.0 (2.3 to 3.7)

3.9 (2.4 to 5.3)

0.22

2.5 (2.0 to 3.2)

6.3 (4.6 to 8.1)

<0.001

SF36 PCS

50.9 (49.1 to 52.7)

43.8 (40.2 to 47.5)

<0.001

52.4 (50.9 to 53.9)

42.9 (39.3 to 46.4)

<0.001

SF36 MCS

52.3 (50.4 to 54.2)

52.4 (50.2 to 54.8)

0.93

52.3 (51.9 to 54.7)

47.6 (43.7 to 51.5)

0.001

HADSa

5.76 (4.94 to 6.58)

6.58 (5.57 to 7.59)

0.24

6.2 (5.6 to 6.9)

8.0 (6.8 to 9.3)

0.005

HADSd

3.45 (2.78 to 4.12)

4.66 (3.81 to 5.51)

0.04

3.7 (3.1 to 4.2)

5.0 (3.9 to 6.0)

0.02

PRMQ

36.8 (35.0 to 38.6)

40.5 (37.8 to 43.3)

0.02

40.7 (39.1 to 42.3)

47.1 (44.1 to 50.1)

<0.001

CFQ

32.5 (30.0 to 34.9)

36.0 (32.4 to 39.6)

0.11

37.8 (35.3 to 40.2)

44.3 (40.2 to 48.4)

0.005

DEX

17.1 (15.2 to 18.9)

19.0 (16.5 to 21.5)

0.23

18.9 (17.2 to 20.6)

25.6 (21.6 to 29.6)

<0.001

MemComp

0.5 (−0.4 to 1.4)

−0.2 (−1.4 to 1.0)

0.39

0.7 (−0.4 to 1.4)

0.2 (−0.8 to 1.2)

0.46

ExecComp

−0.04 (−0.4 to 0.3)

0.05 (−0.5 to 0.6)

0.78

−0.04 (−0.4 to 0.3)

0.3 (−0.2 to 0.8)

0.25