| CD | CNN | DM | ||||
| 2 | Positive | Negative | Positive | Negative | Positive | Negative |
| Stage 1 | 12.53% | 51.40% | 4.06% | 61.30% | 3.16% | 78.13% |
| Stage 2 | 8.31% | 29.91% | 3.65% | 24.31% | 4.55% | 67.56% |
| Total | 8.40% | 32.28% | 3.37% | 24.16% | 4.36% | 67.94% |