Table 6.

Summary statistics for Spo₂ against blood oxyhemoglobin and Sao₂, and monitor Sao₂ (Sao₂m) (n = 660)

Parameter	Spo₂ vs oxyhemoglobin	Spo₂ vs Sao₂	Spo₂ vs Sao₂m^*
Correlation	0.45^†	0.44^†	0.36^†
Mean difference (SD)	2.50 (3.09)^†	-0.39 (3.14)^‡	0.40 (3.08)^‡
SE	0.13	0.13	0.15

Abbreviations: Spo₂, oxygen saturation by pulse oximetry; Sao₂, arterial oxygen saturation.

One hundred twenty-five of 660 arterial monitoring validation data points were recalibrated.

^†

P < .001.

^‡

P < .01.