Risk Group Statistics for the Models Built Using the Patient Data
| Derivation group | Validation group | |||||
|---|---|---|---|---|---|---|
| Flu/Total (%) | LR | In Group (%) | Flu/Total (%) | LR | In Group (%) | |
| Conditional inference tree (manual) | ||||||
| Low | 7/57 (12.3) | 0.1 | 32.8 | 11/26 (42.3) | 0.7 | 34.2 |
| Moderate | 13/25 (52.0) | 1.1 | 14.4 | 5/9 (55.6) | 1.2 | 11.8 |
| High | 68/92 (73.9) | 2.8 | 52.9 | 23/41 (56.1) | 1.2 | 53.9 |
| Naive Bayes classifier | ||||||
| Low | 0/3 (0.0) | 0.0 | 1.7 | 0/1 (0.0) | 0.0 | 1.3 |
| Moderate | 0/17 (0.0) | 0.0 | 9.8 | 1/6 (16.7) | 0.2 | 7.9 |
| High | 88/154 (57.1) | 1.3 | 88.5 | 38/69 (55.1) | 1.2 | 90.8 |
| LASSO score | ||||||
| Low | 5/41 (12.2) | 0.1 | 23.6 | 7/23 (30.4) | 0.4 | 30.7 |
| Moderate | 20/49 (40.8) | 0.7 | 28.2 | 9/12 (75.0) | 2.8 | 16.0 |
| High | 63/84 (75.0) | 2.9 | 48.3 | 23/40 (57.5) | 1.2 | 53.3 |
Abbreviations: LASSO, Least Absolute Shrinkage and Selection Operator; LR, Stratum-specific likelihood ratio.
Notes: We assigned risk groups using a 30% testing threshold and a 70% treatment threshold.