Figure 3From: DAS28 best reflects the physician's clinical judgment of response to infliximab therapy in rheumatoid arthritis patients: validation of the DAS28 score in patients under infliximab treatmentROC curve analysis of the DAS28 at week 22 (plotting the 1-specificity versus the sensitivity). Also the accuracy, PPV and NPV are plotted. PPV, positive predictive value (predictive value to give a dose increase as a measure of insufficient response); NPV, negative predictive value (predictive value to continue on the current dose as a measure of good response).Back to article page