Table 4.
Discrimination performance of discriminative LMI pairs (PC/BTC versus PC/BTC HRG)
| Mass value (m/z) | Retention time (min) | Mass value (m/z) | Retention time (min) | Sensitivity | Specificity |
|---|---|---|---|---|---|
| Numerator LMI | Denominator LMI | ||||
| 756.3643 | 10.02 | 657.6682 | 10.32 | 94.44% | 91.67% |
| 380.7359 | 7.03 | 181.0714 | 7.73 | 90.74% | 91.67% |
| 381.7330 | 6.94 | 181.0714 | 7.73 | 90.74% | 91.67% |
| 712.9321 | 8.55 | 657.6682 | 10.32 | 90.74% | 91.67% |
| 756.5703 | 10.01 | 657.6682 | 10.32 | 90.74% | 91.67% |
| Minuend LMI | Subtrahend LMI | ||||
| 630.3031 | 10.01 | 657.6682 | 10.32 | 92.59% | 91.67% |
| 756.1579 | 9.99 | 657.6682 | 10.32 | 92.59% | 91.67% |
| 756.3643 | 10.02 | 657.6682 | 10.32 | 92.59% | 91.67% |
| 380.7359 | 7.03 | 181.0714 | 7.73 | 90.74% | 91.67% |
| 381.7330 | 6.94 | 181.0714 | 7.73 | 90.74% | 91.67% |
| 712.9321 | 8.55 | 657.6682 | 10.32 | 90.74% | 91.67% |
| 756.1579 | 9.99 | 657.3503 | 10.33 | 90.74% | 91.67% |
| 756.5703 | 10.01 | 657.6682 | 10.32 | 90.74% | 91.67% |
LMI low-mass ion, PC pancreatic cancer, BTC biliary tract cancer, HRG high risk group