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. 2015 Aug 1;38(8):1331–1334. doi: 10.5665/sleep.4920

Figure 1.

Figure 1

The impact of averaging window-length on the prevalence of SpO2 artifacts during sleep at high-altitude. The black-bar denotes that all averaging windows ≥ 2 beats wide produced artifact indexes that were significantly lower than those determined from the raw, beat-to-beat SpO2 dataset, P < 0.01. B2B, beat-to-beat data.