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A Diabetic Retinopathy Screening Tool for Low-Income Adults in Mexico

ORIGINAL RESEARCH — Volume 14 — October 12, 2017

PEER REVIEWED

Figure.
Area under the receiver operating characteristic (ROC) curve and points along the ROC curve corresponding to optimized cut points given a cost ratio (classification costs of false negatives divided by classification costs of false positives) equal to 4 and various scenarios of diabetic retinopathy prevalence: a) 31.7%, the observed prevalence in the study population; b) and c) prevalence of 35.0% and 40.0%; and d) prevalence of 45.0%.

Value Point a Point b and c Point d
Sensitivity 0.829 0.909 0.960
1 − Specificity 0.381 0.541 0.683

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