Research Article

The Thomsen-Friedenreich Antigen-Specific Antibody Signatures in Patients with Breast Cancer

Table 2

Receiver operating characteristic (ROC) curves analysis for distinguishing cancer patients from controls.

ParameterstageSensitivitySpecificityROC Curve AreaP ValueACCSensitivity 
at 90%
(95% Cl)(95% Cl)(95% Cl)Specificity

IgG/IgM ratioall60.3% (47.2% - 72.4%)60.8% (53.6% - 67.7%)0.636 (55.9% - 71.4%)0.00120.60326.8%
IgG/IgM ratio0-3a60.3% (47.2% - 72.4%)64.7% (56.5% - 72.3%)0.651 (57.2% - 73.1%)0.00050.62028.7%
IgG/IgA ratioall60.7% (46.8% - 73.5%)58.8% (51.5% - 65.8%)0.636 (54.8% - 72.3%)0.00200.59217.0%
IgG/IgA ratio0-166.1% (52.2% - 72.2%)65.6% (52.7% - 77.1%)0.690 (59.4% - 78.7%)0.00030.65821.9%
SNA bindingall63.6% (49.5% - 76.2%)60.5% (53.3% - 67.4%)0.658 (57.6% - 74.0%)0.00030.61223.1%
SNA binding1-2a, b63.6% (49.6% - 76.2%)61.3% (51.4% - 70.6%)0.659 (57.1% - 74.7%)0.00090.62124.5%
SNA/IgG indexall66.7% (49.0% - 81.4%)65.3% (58.1% - 72.0%)0.706 (61.0% - 80.3%)< 0.00010.65132.1%
SNA/IgG index0+169.4% (51.8% - 83.7%)70.3% (57.6% - 81.1%)0.754 (65.2% - 85.5%)< 0.00010.70039.1%
SNA/IgA indexall58.3% (40.8% - 74.5%)80.3% (74.0% - 85.7%)0.793 (71.0% - 87.7%)< 0.00010.76949.2%
SNA/IgA index0+158.3% (40.8% - 74.5%)87.5% (76.9% - 94.5%)0.833 (74.7% - 91.8%)< 0.00010.77062.5%
IgA avidity index1-3a75.0% (56.6% - 88.5%)82.2% (74.4% - 88.3%)79.7% (70.1% - 89.3%)< 0.00010.80833.3%

The diagnostic sensitivity, specificity, and accuracy for representative parameters studied at different stages of cancer. The area under the curve (AUC) with 95% confidence interval (CI), the accuracy of diagnostics (ACC), and P values are presented. AUC: the area under the receiver operator curve (ROC).