Combining rules using a high specificity strategy
| Row | Rule | Scenario parameters | Sensitivity (*100) | Specificity (*100) | MRA | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| a | b | c | d | e | f | g | |||||
| Rows 1–3 list a parental height corrected (phc), an absolute sds (sds), and their combined (phc-sds) rule. Rows 4–6 list a parental height corrected (phc), a deflection (def), and their combined (phc-rule) rule. Row 7 is a single parental height corrected rule that is better than row 3 but not preferable to row 6. | |||||||||||
| MRA, median referral age. | |||||||||||
| 1 | phc | −2.0 | −2.0 | 76.9 | 99.4 | 5.2 | |||||
| 2 | sds | −3.5 | −3.0 | 41.4 | 98.1 | 4.8 | |||||
| 3 | phc-sds | −3.5 | −3.0 | −2.0 | −2.0 | 82.4 | 97.5 | 4.7 | |||
| 4 | phc | −2.0 | −2.0 | 76.9 | 99.4 | 5.2 | |||||
| 5 | def | 3 | −2.0 | −0.25 | 23.3 | 100.0 | 7.7 | ||||
| 6 | phc-def | −2.0 | −2.0 | 3 | −2.0 | −0.25 | 79.2 | 99.4 | 5.3 | ||
| 7 | phc | −2.0 | −1.5 | 84.9 | 98.8 | 5.1 | |||||