Table 3 Diagnostic value of C125, CA199, CEA and AFP in GC
Tumour marker | Cut-off value | Sensitivity (%) | Specificity (%) | Positive predictive value(%) | Negative predictive value(%) |
|---|---|---|---|---|---|
CA199 | 37.00IU/mL | 29.21 | 100 | 100 | 42.73 |
5.305 IU/mL | 91.01 | 87.23 | 93.1 | 83.67 | |
CEA | 5.09 ng/mL | 31.46 | 97.98 | 96.55 | 42.99 |
3.07 ng/mL | 53.93 | 82.98 | 85.71 | 48.75 | |
CA125 | 35.00 IU/mL | 44.94 | 100 | 100 | 48.96 |
AFP | 7.00 IU/mL | 24.72 | 97.87 | 95.65 | 40.71 |
7.20 IU/mL | 24.72 | 100 | 100 | 41.23 | |
Combination | 65.17 | 95.74 | 96.67 | 59.21 | |
0.741 | 98.85 | 85.11 | 92.63 | 85.56 |