Table 3.

Linear regression analysis for sleep indices between AW2 and PSG, SWA and PSG.

	SOL		WASO		TST		SE
R	SEE	R	SEE	R	SEE	R	SEE
AW2	.61	16.44	.73	14.49	.91	24.86	.72	4.92
SWA	.52	11.64	.49	27.57	.83	37.71	.54	6.95

R, Pearson’s correlation coefficient; SEE, standard error of estimate.

AW2, Actiwatch 2 (n=79); SWA, SenseWear armband (n=81); PSG, polysomnography (n=81). (p<.001 for all results).