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. 2008 Oct 15;4(5):450–455.

Figure 1.

Figure 1

Correlation of sleep efficiency and accuracy of actimetry sleep/wake detection. Pearson correlation coefficient was tested and significant correlation was found (r = 0.66, p = 0.001). Possible interaction of OSA grouping in the correlation was tested. No significant interaction was found (p = 0.76). SE = Sleep efficiency.