TABLE 3.
Distribution of oxygen saturation and measured differences by instrument in patients with control SpO2 ≤ 94% (N = 60)
| Measurement Instrument | ||||
|---|---|---|---|---|
| Measure | Control | OxyWatch | SM | Onyx |
| Measured SpO2 | ||||
| Mean (SD) a | 92.15% (4.57) | 90.25% (5.76) | 91.37% (5.10) | 91.60% (4.68) |
| Min, Max SpO2 | 59%, 94% | 59%, 99% | 62%, 98% | 68%, 100% |
| Pearson's Correlation Coefficient (P value) | Ref | 0.75 (0.001) | 0.79 (0.001) | 0.70 (0.001) |
| Difference in measured SpO2 (Control‐Measured) | ||||
| Mean (95% CI) | Ref | 1.95% (0.96–2.94) | 0.78% (−0.04–1.60) | 0.55% (−0.37–1.47) |
| Min, Max | Ref | −5%, 13% | −6%, 10% | −9%, 15% |
CI, confidence interval; SM, Santa Medical.
a
Analysis of variance: P < 0.0001, F value = 14.49.