Agreement of measurements based on respiratory rate (RR) range
| Observer | RR range (no) | 95% limits of agreement (mean difference) | Significance (P value) |
| RR1 vs RR2 | > 95th centile (81) | −12.9 to 22.7 (4.9) | |
| Normal range (88) | −5.9 to 11.3 (2.7) | P=0.0002 | |
| RR1 vs RR3 | > 95th centile (81) | −14.8 to 24.4 (4.8) | |
| Normal range (88) | −6.0 to 11.4 (2.7) | P=0.0001 | |
| RR2 vs RR3 | > 95th centile (81) | −8.4 to 8.1 (−0.1) | |
| Normal range RR (88) | −5.7 to 5.7 (−0.03) | P=0.184 |