Sensitivity, specificity, and positive predictive value of risk factors associated with non-response to inhaled bronchodilator at the time of screening, and subsequent deterioration until day 5 after enrolment
| Sign | Sensitivity (%) | Specificity (%) | Positive predictive value (%) |
|---|---|---|---|
| Risk factors at screening | |||
| History of fever | 82.7 | 56.4 | 66.8 |
| Presence of audible wheeze | 46.7 | 73.9 | 65.5 |
| Temperature more than 100°F | 17.4 | 96.8 | 85.5 |
| Lower chest indrawing (severe pneumonia) with wheeze | 54.1 | 78.9 | 73.0 |
| Risk factors after enrolment | |||
| No family history of wheeze | 71.1 | 37.7 | 24.1 |
| Temperature more than 100°F | 9.6 | 98.4 | 60.0 |
| Lower chest indrawing (severe pneumonia) with wheeze | 40.3 | 83.6 | 37.9 |