Table 3. Percentage of major or minor outbreaks classified by DFA as minor or major and the kappa statistic for each model.
| 1.2, 1∶1, kappa = 0.003 | DFA classified as minor | DFA classified as major |
| Actual observeddfa minor | 22.5 | 77.5 |
| Actual observeddfa major | 22.2 | 77.8 |
| 1.2, 3∶3, kappa = −0.009 | DFA classified as minor | DFA classified as major |
| Actual observeddfa minor | 62.5 | 37.5 |
| Actual observeddfa major | 63.3 | 36.7 |
| 1.8, 1∶1, kappa = 0.002 | DFA classified as minor | DFA classified as major |
| Actual observeddfa minor | 11.7 | 88.3 |
| Actual observeddfa major | 11.6 | 88.4 |
| 1.8, 3∶3, kappa = 0.007 | DFA classified as minor | DFA classified as major |
| Actual observeddfa minor | 5.8 | 94.2 |
| Actual observeddfa major | 5.3 | 94.7 |