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. 2020 Aug 12;14(2):377–385. doi: 10.1007/s12265-020-10061-0

Fig. 3.

Fig. 3

Median (interquartile range) of minutes with oxygen saturation < 90%, median (and interquartile range) minutes with oxygen saturation < 90% at baseline and 6 months for the full per protocol population (A) and the subgroup with heart failure and ejection fraction ≤ 45% (B). P value from Mann–Whitney test for difference in change from baseline between groups (2-sided)