Risk Group Statistics for the Models Built Using the Clinician Data
| Derivation group | Validation group | |||||
|---|---|---|---|---|---|---|
| Flu/Total (%) | LR | In Group (%) | Flu/Total (%) | LR | In Group (%) | |
| Conditional inference tree (manual) | ||||||
| Low | 9/58 (15.5) | 0.2 | 33.3 | 8/24 (33.3) | 0.5 | 31.6 |
| Moderate | 32/58 (55.2) | 1.2 | 33.3 | 14/26 (53.8) | 1.1 | 34.2 |
| High | 47/58 (81.0) | 4.2 | 33.3 | 17/26 (65.4) | 1.8 | 34.2 |
| Naive Bayes classifier | ||||||
| Low | 5/42 (11.9) | 0.1 | 24.1 | 1/13 (7.7) | 0.1 | 17.1 |
| Moderate | 8/15 (53.3) | 1.1 | 8.6 | 4/8 (50.0) | 0.9 | 10.5 |
| High | 75/117 (64.1) | 1.7 | 67.2 | 34/55 (61.8) | 1.5 | 72.4 |
| LASSO score | ||||||
| Low | 7/58 (12.1) | 0.1 | 33.3 | 8/24 (33.3) | 0.5 | 31.6 |
| Moderate | 12/28 (42.9) | 0.7 | 16.1 | 2/11 (18.2) | 0.2 | 14.5 |
| High | 69/88 (78.4) | 3.5 | 50.6 | 29/41 (70.7) | 2.3 | 53.9 |
Abbreviations: LASSO, Least Absolute Shrinkage and Selection Operator; LR, Stratum-specific likelihood ratio.
Notes: We assigned risk groups using a 25% testing threshold and a 60% treatment threshold.