Table 1 Sociodemographic and clinical characteristics of the psychometric sample (mean ± standard deviation)
From: Validation of the German version of the Neck Disability Index (NDI)
Variable | Total (n = 458) | Responsiveness subsample (n = 49) |
|---|---|---|
Gender: N female (%) | 424 (76%) | 40 (81.6%) |
Age (in years) | 49.89 ± 11.40 | 47.92 ± 10.59 |
Pain intensity (in mm VAS) | 45.69 ± 20.77 | 44.33 ± 19.02 |
Pain duration (in years) | 7.54 ± 7.52 | 8.01 ± 6.38 |
Neck disability index | 32.75 ± 13.09 | 27.36 ± 9.42 |
Pain on movement (in mm VAS) | 42.85 ± 20.52 | 40.76 ± 20.07 |
Health-related quality of life (SF-36) | ||
Physical functioning | 75.32 ± 17.19 | 80.59 ± 14.48 |
Physical role functioning | 44.14 ± 37.64 | 53.65 ± 34.97 |
Bodily pain | 42.13 ± 13.87 | 46.82 ± 10.98 |
General health perceptions | 60.05 ± 18.64 | 61.10 ± 19.04 |
Vitality | 47.78 ± 18.58 | 47.55 ± 16.77 |
Social functioning | 70.38 ± 23.58 | 72.96 ± 21.09 |
Emotional role functioning | 64.61 ± 41.04 | 66.67 ± 39.51 |
Mental health | 62.13 ± 17.62 | 64.41 ± 16.23 |
Physical component score | 40.85 ± 7.93 | 43.21 ± 8.01 |
Mental component score | 45.09 ± 11.63 | 45.28 ± 11.01 |
Range of motion | - | 45.52 ± 9.04 |