Table 5.
Chi-squared automatic interaction detector classification matrix for the dependent variable “type of infection,” showing the percentage of fit and misfit values between the observed and predicted frequencies as distributed in the three categories: 0 (pneumonia), 1 (H1N1), and 2 (H3N2) (instrumental measurements)
| Observed | Predicted 0 | Predicted 1 | Predicted 2 | Row total | |
|---|---|---|---|---|---|
| Number | 0 | 40 | 1 | 41 | |
| Column % | 100.00 | 0.00 | 6.25 | ||
| Row % | 97.56 | 0.00 | 2.44 | ||
| Total % | 52.63 | 0.00 | 1.32 | 53.95 | |
| Number | 1 | 20 | 1 | 21 | |
| Column % | 0.00 | 100.00 | 6.25 | ||
| Row % | 0.00 | 95.24 | 4.76 | ||
| Total % | 0.00 | 26.32 | 1.32 | 27.63 | |
| Number | 2 | 14 | 14 | ||
| Column % | 0.00 | 0.00 | 87.50 | ||
| Row % | 0.00 | 0.00 | 100.00 | ||
| Total % | 0.00 | 0.00 | 18.42 | 18.42 | |
| Count | All groups | 40 | 20 | 16 | 76 |
| Total % | 52.63 | 26.32 | 21.05 |