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Table 3 Risk of Hypoxemia at Potential Low SpO2 Alarm Limits

From: Thresholds for oximetry alarms and target range in the NICU: an observational assessment based on likely oxygen tension and maturity

 

89% SpO2

88% SpO2

87% SpO2

86% SpO2

85% SpO2

p

n

279

251

331

389

444

 

Risk < 50 (%)

46% (40–50%)

49% (40–55%)

50% (45–56%)

74% (70–78%)

71% (66–75%)

< 0.001

Risk < 41 (%)

13% (9–17%)

10% (06–14%)

11% (8–15%)

20% (16–24%)

25% (21–29%)

< 0.001

PaO2 (mmHg)

51 (44–57)

50 (44–54)

49 (44–55)

46 (42–50)

46 (40–50)

< 0.001

  1. Severe hypoxemia defined as PaO2 of < 41 mmHg. Risks shown as a percentage (95% CI of proportion), differences evaluated with chi-square test. PaO2 among all levels presented as median (IQR), with differences in evaluated with Kruskal-Wallis test
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BMC Pediatrics

ISSN: 1471-2431

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