TABLE 2.

Median Saturations and Proportion of Time Spent <85% (Lower Tail) and >95% (Higher Tail) Based on Pulse Oximeter Algorithm (Original or Revised) While on Supplemental Oxygen

Study	Target Spo2 Arm	Median Spo2, %		Tail, Proportion of Time Spent at This Spo2 Level, %	Original, %	Revised, %
		Original	Revised
COTa	85%–89% (low)	91	91	<85	20.2	18.5
				>95	17.5	15.2
	91%–95% (high)	93	93	<85	9.1	8.2
				>95	22.4	21.2
BOOST-II UKb	85%–89% (low)	91	90	<85	25.7	22.1
				>95	16.1	13.9
	91%–95% (high)	92	93	<85	15.0	12.3
				>95	18.7	20.4
BOOST-II Australiab	85%–89% (low)	90	89	<85	27.4	24.1
				>95	11.1	8.1
	91%–95% (high)	93	92	<85	13.5	10.8
				>95	18.6	16.4
BOOST-II New Zealandb	85%–89% (low)	91		<85	21.1	Only oximeters with the original algorithm were used in these studies.
				>95	15.5
	91%–95% (high)	93		<85	10.8
				>95	22.2
SUPPORTb	85%–89% (low)	90c		<85	10.9
				>95	33.0
	91%–95% (high)	93c		<85	16.0
				>95	26.7

^aAll study days with >12 hours of supplemental O₂.

^bTime when the infant was receiving oxygen.

^cEstimate based on visual inspection of the graphs.