Fig. 2From: Responsiveness of the German version of the Neck Disability Index in chronic neck pain patients: a prospective cohort study with a seven-week follow-upReceiver operating characteristics curve (ROC) of the NDI-G change scores, “clinically improved” and “clinically not improved” patients as indicated in the patient`s global impression of change scale. The area under the curve (AUC) is 0.78Back to article page