1. Physiotherapy management of whiplash-associated disorders (WAD)
Michele Sterling 
Journal of Physiotherapy 
Volume 60, Issue 1, Pages 5-12 (March 2014)
DOI: /j.jphys
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2. Figure 1
Predicted Neck Disability Index (NDI) trajectories with 95% confidence limits and predicted probability of membership (%). Suggested cut-offs for the NDI are: 0 to 8% (no pain and disability); 10–28% (mild pain and disability), 30–48% (moderate pain and disability), 50–68% (severe pain and disability) and >70% complete disability.75
Modified from Sterling et al10 with permission.
Journal of Physiotherapy  , 5-12DOI: ( /j.jphys )
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