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Table 2 Chance of Normoxemia at Potential SpO2 Target Ranges

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

Target Range 88–92 SpO2 89–93 SpO2 90–94 SpO2 91–95 SpO2 p
n 2357 2946 3716 4584  
Chance 50–80 (%) 59% (57–61%) 63% (61–65%) 67% (65–68%) 68% (67–70%) < 0.001
PaO2 (mmHg) 53 (47–61) 55 (48–64) 58 (51–68) 62 (53–73) < 0.001
  1. Normoxemia defined as PaO2 of 50–80 mmHg. Chance shown as a percentage (95% CI of proportion), differences evaluated with chi-square test. PaO2 levels show as median (IQR) differences evaluated with Kruskal-Wallis test