Table 2.
MS pain sites and factor analysis of the NMQ
| MS pain sites | N | % | Frequency score | Factor loading1 | |
|---|---|---|---|---|---|
| Mean (SD) | Factor 1 | Factor 2 | |||
| Neck | 585 | 36.22 | 73.88 (20.71) | 0.33 | −0.02 |
| Left shoulder | 325 | 20.12 | 74.89 (22.05) | 0.33 | −0.01 |
| Right shoulder | 371 | 22.97 | 76.77 (21.42) | 0.33 | 0.02 |
| Upper back | 273 | 16.90 | 76.34 (19.96) | 0.17 | 0.00 |
| Waist or lower back | 451 | 27.93 | 72.33 (23.34) | 0.08 | −0.04 |
| Left elbow | 70 | 4.33 | 76.00 (23.98) | −0.05 | −0.04 |
| Right elbow | 113 | 7.00 | 76.11 (24.03) | −0.04 | −0.04 |
| Left wrist | 77 | 4.77 | 77.92 (23.53) | −0.05 | 0.00 |
| Right wrist | 162 | 10.03 | 74.82 (23.33) | −0.03 | −0.03 |
| Left hip/thigh/buttock | 67 | 4.15 | 75.22 (21.77) | −0.05 | −0.07 |
| Right hip/thigh/buttock | 68 | 4.21 | 75.29 (22.95) | −0.02 | −0.04 |
| Left knee | 80 | 4.95 | 73.49 (22.11) | −0.05 | −0.07 |
| Right knee | 88 | 5.45 | 76.59 (20.84) | −0.02 | −0.04 |
| Left ankle | 29 | 1.80 | 70.35 (29.09) | −0.02 | 0.49 |
| Right ankle | 25 | 1.55 | 71.20 (31.13) | −0.02 | 0.54 |
| Eigenvalues | 4.93 | 1.55 | |||
| Explained variation % | 57.59 | 18.12 | |||
1All numbers are standardized scoring coefficients, N, individuals, SD, standard deviation