Sensitivity (95% CI) | Specificity (95% CI) | Positive LR (95% CI) | Negative LR (95% CI) | |
Temperature ⩾39.0°C | 27 (22 to 32) | 87 (84 to 91) | 2.1 (1.5 to 2.9) | 0.8 (0.8 to 0.9) |
Tachypnoea | 55 (49 to 61) | 57 (51 to 62) | 1.3 (1.1 to 1.5) | 0.8 (0.7 to 0.9) |
Tachycardia | 62 (57 to 68) | 58 (53 to 63) | 1.5 (1.3 to 1.7) | 0.7 (0.6 to 0.8) |
CRT >2 seconds | 8 (4 to 12) | 100 (99 to 100) | 17.7 (2.4 to 132.5) | 0.9 (0.9 to 1.0) |
O2 sats ⩽94% | 19 (15 to 24) | 93 (90 to 95) | 2.7 (1.7 to 4.1) | 0.9 (0.8 to 0.9) |
CRT, capillary refill time; LR, likelihood ratio; O2 sats, oxygen saturations.