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. 2020 Nov 2;8(10):e20465. doi: 10.2196/20465

Table 12.

Bias and agreement limits based on Bland-Altman plot of sleep onset latency for the actigraphy and Samsung watch.

Parameter Mean difference (SD) Lower and upper agreement limits
Sleep onset latency (min) −12.81 (14.65) −41.52, 15.91