Table 2.

Percentage of accuracy time, accuracy error rate and absolute error rate during abrupt changes in breathing

Parameter	RRoxi (mean ± SD)	RRa (mean ± SD)	p-value
Accuracy time
Total (%)	77.5 ± 11.9	63.0 ± 15.7	0.028*
Low RR (4–8 BPM) (%)	88.4 ± 18.1	42.4 ± 34.4	<0.001**
Normal RR (9–23 BPM) (%)	76.2 ± 11.4	69.1 ± 15.1	< 0.001**
High RR (24–30 BPM) (%)	60.8 ± 35.5	68.4 ± 28.8	0.428
Accuracy error rate
Total	0.118 ± 0.057	0.229 ± 0.101	< 0.001**
Low RR (4–8 BPM)	0.17 ± 0.12	0.56 ± 0.30	< 0.001**
Normal RR (9–23 BPM)	0.10 ± 0.05	0.13 ± 0.06	0.005**
High RR (24–30 BPM)	0.12 ± 0.15	0.08 ± 0.04	0.15
Absolute error rate
Total	1.58 ± 0.98	2.19 ± 0.84	0.006**
Low RR (4–8 BPM)	1.01 ± 0.67	3.25 ± 1.83	< 0.001**
Normal RR (9–23 BPM)	1.59 ± 0.83	1.86 ± 0.76	0.125
High RR (24–30 BPM)	2.95 ± 3.61	2.05 ± 1.09	0.148
Misdetection of bradypnea (RR ≤ 8) (%)	0.57 (0–1.23)	10.25 (7.08–3.42)	< 0.001**

*p-value < 0.05

**p-value < 0.01