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Predicting gastric cancer based on serum PG I level and PG I/II ratio
| PG I level | PG I/II ratio | |
|---|---|---|
| Area under the ROC curve |
0.880 (0.835-0.925) |
0.876 (0.827-0.925) |
| Optimal cult-off value |
70.1 μg/L |
6 |
| Sensitivity, % |
82.1 |
82.9 |
| Specificity, % |
72.5 |
76.8 |
| Positive predictive value, % |
68.2 |
64.6 |
| Negative predictive value, % |
82.3 |
82.3 |
| Accuracy, % | 77.2 | 75.8 |
