Table 3.
Diagnostic accuracy for fever defined as ≥38°C by the electronic axillary thermometer
| Thermofocus | Firhealth | Tympanic | |
|---|---|---|---|
| Sensitivity, % (95% CI) | 66.7 (38.4 to 88.2) | 12.5 (1.6 to 38.3) | 62.6 (35.4 to 84.8) |
| Specificity, % (95% CI) | 98.0 (96.0 to 99.2) | 99.4 (98.0 to 99.9) | 96.0 (93.4 to 97.8) |
| Positive predictive value, % (95% CI) | 58.8 (32.9 to 81.6) | 50.0 (6.8 to 93.2) | 41.7 (22.1 to 63.4) |
| Negative predictive value, % (95% CI) | 98.6 (96.7 to 99.5) | 96.2 (93.7 to 97.9) | 98.2 (96.2 to 99.4) |
| Likelihood ratio + (95% CI) | 33.9 (15.0 to 76.7) | 22.4 (3.4 to 148.8) | 15.6 (8.2 to 29.5) |
| Likelihood ratio – (95% CI) | 0.34 (0.17 to 0.70) | 0.88 (0.73 to 1.06) | 0.39 (0.21 to 0.74) |
| Absolute numbers (TP, FP, FN, TN) | 10, 5, 7, 349 | 2, 14, 2, 356 | 10, 6, 14, 335 |
FN = false negative. FP = false positive. TN = true negative. TP = true positive.