Table 2.
Precision of different combination models in prediction of hypoxaemia in children
| Combination | Study | Sensitivity | Specificity | Positive predictive value | Negative predictive value |
|---|---|---|---|---|---|
| Inability to feed or drink or cyanosis or respiratory rate ⩾70 breaths/min or severe chest indrawing | WHO5 | 80.9 | 62.5 | 11.9 | 98.1 |
| Respiratory rate ⩾70 breaths/min or grunting respiration or severe intercostal indrawing (age <12 months) | Onyango et al6 | 84.2 | 63.3 | 11.3 | 98.6 |
| Grunting or respiratory rate ⩾90 breaths/min or cyanosis or abnormally sleepy | Dyke et al19 | 73 | 72 | 13.9 | 97.7 |
| Cyanosis or head nodding or inability to cry | Weber et al21 | 71.4 | 77.1 | 16.3 | 97.7 |
| Cyanosis or head nodding | Present | 68.3 | 80.4 | 17.8 | 97.6 |
| Inability to cry or respiratory rate ⩾90 breaths/min or head nodding | Present | 69.8 | 78.6 | 16.9 | 97.7 |