Table 3 Summary statistics for change from baseline in VAS (mm) at 3-month and 6-month observations

Baseline

Overall VAS score

479

42.9

45.0

27.1

41.7 to 44.1

Severity of headaches during the past week

476

31.5

25.5

28.3

30.2 to 32.8

Severity of back pain during the past week

476

32.8

30.0

28.6

31.5 to 34.1

Severity of shoulder pain during the past week

478

29.7

20.0

29.5

28.4 to 31.0

Interference of overall pain(s) with ability to do daily activities during the past week

477

45.2

47.0

30.7

43.8 to 46.6

Having pain(s) while awake during the past week

479

41.1

40.0

29.0

39.8 to 42.4

3 months

Change in severity of overall pain(s) during the past week

420

-12.9

-10.0

23.1

-15.1 to -10.7

Change in severity of headaches during the past week

417

-9.5

-7.0

24.1

-11.8 to -7.1

Change in severity of back pain during the past week

416

-5.3

-2.0

23.8

-7.6 to -3.0

Change in severity of shoulder pain during the past week

420

-4.9

0.0

25.0

-7.3 to -2.5

Change in interference of overall pain(s) with ability to do daily activities during the past week

419

-17.4

-12.0

27.5

-20-0 to -14.8

Change in having pain(s), while awake during the past week

419

-13.7

-10.0

23.2

-15.9 to -11.5

6 months

Change in severity of overall pain(s) during the past week

421

-20.1

-19.0

27.1

-22.7 to -17.5

Change in severity of headaches during the past week

421

-14.5

-10.0

28.0

-17.2 to -11.9

Change in severity of back pain during the past week

419

-10.3

-5.0

27.3

-12.9 to -7.7

Change in severity of shoulder pain during the past week

420

-10.1

-5.0

27.1

-12.7 to -7.5

Change in interference of overall pain(s) with ability to do daily activities during the past week

420

-24.4

-21.0

30.1

-27.3 to -21.6

Change in having pain(s), while awake during the past week

422

-20.2

-19.0

28.0

-22.8 to -17.5