Table 3 Differences in SpO2 measurements between pulse oximeters.

From: Accuracy of two pulse-oximetry measurements for INTELLiVENT-ASV in mechanically ventilated patients: a prospective observational study

 

Mean ± SD (95% CI)

P-value

SaO2 < 94%

(Blood gas analysis = 274)

 Nihon Kohden

1.41 ± 2.28% (1.14–1.68)

0.083

 Masimo

1.74 ± 2.15% (1.49–2.00)

94% ≤ SaO2 < 98%

(Blood gas analysis = 952)

 Nihon Kohden

0.57 ± 1.77% (0.46–0.69)

 < 0.0001

 Masimo

1.10 ± 1.60% (1.00–1.20)

SaO2 ≥ 98%

(Blood gas analysis = 271)

 Nihon Kohden

0.51 ± 1.49% (0.33–0.69)

0.006

 Masimo

0.84 ± 1.28% (0.68–0.99)

  1. CI confidence interval, SaO2 arterial oxygen saturation, SD standard deviation, SpO2 pulse-oximetric oxygen saturation.
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