German translation, cross-cultural adaptation and validation of the whiplash disability questionnaire

Table 3 WDQ-G correlation with the NASS, SF-36 and VAS pain at study entry

	Subscale	Pearson’s r (N)
Concurrent validity related subscales	NASS: Pain and disability	0.74** (68)
	SF36 Bodily pain	−0.71** (69)
	VAS	0.61** (70)
Further subscale correlations for informative purposes	SF36 Mental health	−0.69** (69)
	SF36 Physical function	−0.64** (69)
	SF36 Social function	−0.62** (69)
	SF36 Role emotional	−0.61** (69)
	SF36 Vitality: Entry	−0.54** (69)
	SF36 Physical role	−0.54** (65)
	SF36 General health	−0.27* (67)
	NASS: Neurogenic symptoms	0.43** (67)

Legend: N = sample size, VAS = visual analogue scale, NASS = North American Spine Society questionnaire, SF-36 = Medical Outcomes Study (MOS) 36-Item Short Form Health Survey, *p < 0.05, **p < 0.01 (two-tailed).

ISSN: 1477-7525