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Table 3 NDI validity study

From: Clinimetric properties of the Turkish translation of a modified neck disability index

  Mean ± SD Correlations with NDI
VAS Pain 61.5 ± 25 0.60*
VAS Disability 51.2 ± 29 0.76**
HAD depression 7.3 ± 4.2 0.62*
HAD Anxiety 9.7 ± 4.5 0.58*
SF-36   
Physical functioning 62.5 ± 24.3 0.68*
Role Physical 31.2 ± 24.3 0.29
Bodily Pain 39.4 ± 21.5 0.42ϕ
General health 48.1 ± 18.9 0.55*
vitality 49.2 ± 23.1 0.57*
Social functioning 60.2 ± 18.2 0.64*
Role Emotional 37.1 ± 19.9 0.36ϕ
Mental health 57.2 ± 21.2 0.60*