Table 2.

Performance Comparison of Each Probe within a Range of 73-97% of Arterial Oxygen Saturation (SaO₂)

Probes	1	2	3	4	5	6	7
Arms (%)	2.83	3.98	3.75	6.84	3.43	5.17	3.84
Mean bias (%)	-1.10	3.29	3.04	6.01	2.63	4.69	2.70
Precision (%)	2.22	2.25	2.19	2.56	2.16	2.07	2.74

1: WA-100 reusable finger probe, 2: MDNA disposable finger probe, 3: IS-1011 disposable finger probe, 4: CJ340NA disposable finger probe, 5: Nellcor^TM OxiMax DS-100A reusable finger probe, 6: Nellcor^TM OxiMax MAX-N disposable finger probe, 7: OXI-PRO DA disposable finger probe. A_rms, bias, and precision were calculated by the following equations: $A_{rms}=\sqrt{\frac{\sum _{i=1}^n{(Sp{O}_{2i}-S_{Ri})}^2}{n}}, Bias=Sp{O}_{2i}-S_{Ri, }Precision=\sqrt{\frac{\sum _{i=1}^n{(Sp{O}_{2i}-Sp{O}_{2fit,i})}^2}{n-2}}$ , where SpO_2ij is the i^th measured peripheral oxygen saturation (SpO₂) value, S_Ri is the i^th measured standard reference value, and SpO_2fit,i is the value of the curve fitted to the test data at S_Ri.