Figure 4.

Correlation of patient sample results by capture ELISA and indirect ELISA is significant. (A) Results from samples positive by indirect ELISA (horizontal axis) and capture ELISA (vertical axis) were plotted and the strength of the association between results using both methods was assessed by Pearson's product-moment correlation. Results are in ug/ml, and the best-fit line is shown for reference. (B) The ROC curve was constructed using results from normal donors and patients with breast or colon cancer and plotted as diagnostic sensitivity vs. 1- diagnostic specificity.