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 |