Table 1 Summary of demographic, pain and psychological variables
|  | Moderate neck disability (N = 41) | Mild neck disability (N = 42) | Healthy (N = 39) | t/F | P value | |||
|---|---|---|---|---|---|---|---|---|
Variables | Mean ± SD | Range | Mean ± SD | Range | Mean ± SD | Range |  |  |
Sex (female/male) | 26/15 | - | 25/17 | - | 26/13 | - | - | - |
Weight (kg) | 69.56 ± 12.47 | 51-103 | 67.76 ± 14.03 | 50-97 | 64.84 ± 10.2 | 48-90 | 1.4 | 0.23 |
Heigth (cm) | 167.56 ± 12.47 | 152-183 | 165.54 ± 12.09 | 150-185 | 169.97 ± 8.51 | 156-189 | 1.98 | 0.14 |
Age (years) | 44.31 ± 10.9 | 22-59 | 40.95 ± 12.89 | 19-60 | 40.61 ± 10.01 | 30-65 | 1.3 | 0.27 |
Pain duration (months) | 19.73 ± 12.66 | 6-60 | 22.19 ± 13.36 | 6-48 | - | - | −0.8 | 0.39 |
NDI (points) | 17.58 ± 2.69 | 15-24 | 11.42 ± 2.48 | 7-14 | - | - | 10.8 | 0.01 |
PCS (points) | 17.09 ± 3.75 | 7-23 | 15.8 ± 4.02 | 7-22 | 5.46 ± 1.75 | 2-9 | 143 | 0.01 |
HIT-6 (points) | 55.31 ± 4.9 | 49-65 | 53.16 ± 4.74 | 43-59 | - | - | 2 | 0.04 |
VAS (mm) | 40.75 ± 9.17 | 21-58 | 37.04 ± 9.16 | 19-54 | - | - | 1.8 | 0.06 |