Fig. 1From: Prediction of pain outcomes in a randomized controlled trial of dose–response of spinal manipulation for the care of chronic low back painPretreatment model ROC curves. Receiver operating characteristic (ROC) curves for the final multivariate model for prediction of responders. The area under the curve (AUC) was 0.624 in the training set and 0.479 in the test set. Chance is shown by the diagonal line indicating AUC = 0.5Back to article page