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. 2013 Feb 1;36(2):249–257. doi: 10.5665/sleep.2384

Figure 3.

Figure 3

PSG AHI versus the difference in AHI between HRP-surrogate arousal and HRP-desaturation (A), as well as between SimultRP-surrogate arousal and SimultRP-desaturation (B). Solid sinusoidal lines represent normal distribution. Size of points indicates clusters of patients from 0–30 (0 indicates no cluster occurrence, i.e., only one value). PSG, polysomnography; AHI, apnea-hypopnea index; HRP, home respiratory polygraphy; SimultRP, simultaneous respiratory polygraphy; D, desaturation; SA, surrogate arousal.