Figure 3. Effect of Oxygen Saturation as Measured by Pulse Oximetry (Spo₂) Target Levels on Secondary Outcomes.

Box sizes correspond to precision; therefore, the more precise the larger the box. Precision was ascertained by calculating the inverse of the variance for each estimate.

^aDenominators include the total number of infants with a known outcome.

^bDiagnosed by ultrasound during initial hospitalization.

^cTreated with surgery or leading to death during initial hospitalization.

^dData on postmenstrual age when ceased use of home oxygen can only be calculated using the 537 infants who received home oxygen and for whom the postmenstrual age when ceased use is known.