Table 2 Participant characteristics at baseline
Characteristic | Low Force | Medium Force | High Force | |||
|---|---|---|---|---|---|---|
(n = 16) | (n = 16) | (n = 16) | ||||
Age in years, mean (SD) | 42.2 | 11.2 | 47.0 | 11.4 | 51.2 | 13.7 |
Female, n (%) | 11 | 69 | 12 | 75 | 8 | 50 |
White, n (%) | 15 | 94 | 14 | 88 | 15 | 94 |
Married, n (%) | 7 | 44 | 10 | 63 | 9 | 56 |
Education, high school graduate or higher, n (%) | 16 | 100 | 16 | 100 | 15 | 94 |
Employment, full-time, n (%) | 11 | 69 | 9 | 56 | 8 | 50 |
Previous chiropractic, n (%) | 16 | 100 | 14 | 88 | 13 | 81 |
Regular chiropractic care, n (%) | 3 | 19 | 5 | 31 | 4 | 25 |
Body mass index, mean (SD) | 31.3 | 6.9 | 30.3 | 6.3 | 26.9 | 5.3 |
Beck depression index, mean (SD) | 5 | 3.8 | 5 | 5.0 | 4 | 3.7 |
Current neck pain, Visual Analog Scale (0-100Â mm), mean (SD) | 45.2 | 18.0 | 44.3 | 14.1 | 34.5 | 12.3 |
Neck disability index (0-50), mean (SD) | 10.8 | 4.0 | 11.1 | 4.5 | 11.1 | 3.9 |
Neck pain or symptom radiation pattern (may indicate more than 1 location of symptom radiation) | Â | Â | Â | Â | Â | Â |
Head, n (%) | 1 | 6 | 2 | 13 | 2 | 13 |
Thoracic, n (%) | 3 | 19 | 2 | 13 | 4 | 25 |
Shoulder, n (%) | 8 | 50 | 3 | 19 | 8 | 50 |
Upper arm, n (%) | 1 | 6 | 0 | 0 | 2 | 13 |
Distal arm/hand, n (%) | 3 | 19 | 8 | 50 | 2 | 13 |
Quebec Task Force Classification | Â | Â | Â | Â | Â | Â |
QTF 2, n (%) | 11 | 23 | 11 | 23 | 14 | 29 |
QTF 3, n (%) | 5 | 10 | 5 | 10 | 2 | 4 |
PROMIS-pain interference, mean (SD) | 53.2 | 6.7 | 54.9 | 5.2 | 51.2 | 5.6 |
PROMIS-physical function score, mean (SD) | 27.7 | 5.2 | 25.3 | 5.0 | 26.4 | 4.5 |
PROMIS-sleep disturbance, mean (SD) | 51.3 | 3.0 | 51.3 | 3.0 | 51.5 | 2.6 |
PROMIS-fatigue, mean (SD) | 50.4 | 10.9 | 46.4 | 9.3 | 47.1 | 7.2 |