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. 2017 Jan 15;13(1):73–79. doi: 10.5664/jcsm.6392

Figure 1. Degree of postural oxygen desaturation in finger pulse oximetry (SpO2) was greater in patients who eventually needed positive airway pressure (PAP) with O2 supplementation than PAP therapy alone.

Figure 1

PAP alone = patients who needed PAP therapy alone, PAP + O2 = patients who needed PAP therapy with unanticipated O2 supplementation for their sleep-disordered breathing (Mann-Whitney U test).