Skip to main content

View full-text article in PMC

. 2019 May 16;7(5):e13421. doi: 10.2196/13421

Table 1.

The consistency between app-recorded and self-reported sleep indicator.

Sleep indicators	Elapsed time since midnight (seconds)
	App-recorded		Self-reported		t₂₇	P value
	Average time	Mean (SD)	Average time	Mean (SD)	t₂₇	P value
Sleep onset	01:26:43	5202.53 (7093.71)	01:22:40	4959.64 (6662.52)	1.94	.053
Wake	08:21:44	30104.20 (9037.06)	08:32:08	30727.93 (8417.06)	−3.35	.001^a
Midpoint	04:54:13	17653.27 (6707.71)	04:57:24	17843.74 (6362.29)	−1.64	.103
Total sleep time	06:55:02	24901.67 (9165.46)	07:09:28	25768.30 (8279.86)	−4.02	<.001^b

^aP<.05.

^bP<.001.