Table 1.

Results of the generalized estimating equation analysis.

Variables		early_success					ET_ring2success
		β	SE	P	95% CI	β		SE	P	95% CI
Wake-up task
	math_task	1.384	0.491	.005	0.423 to 2.347	1.282		2.366	.59	−3.355 to 5.921
	picture_task	3.854	0.868	<.001	2.154 to 5.554	−4.052		2.288	. 08	−8.537 to 0.431
	non_task (reference category)	N/Aa	N/A	N/A	N/A	N/A		N/A	N/A	N/A
Alarm usage
	ringing_time	−0.104	0.229	.65	−0.553 to 0.344	−1.473		1.423	.30	−4.263 to 1.316
	ET_ring2dismiss	−0.428	0.131	.001	−0.685 to −0.172	1.006		0.010	<.001	0.988 to 1.025
Theory of planned behavior (TPB)
	TPB_intention	0.605	0.321	.06	−0.024 to 1.234	0.485		0.812	.55	−1.107 to 2.077
	TPB_attitude	0.408	0.566	.47	−0.702 to 1.518	−3.763		2.420	.12	−8.506 to 0.979
	TPB_subjective_norm	−1.126	0.393	.004	−1.898 to −0.356	4.143		1.911	.03	0.397 to 7.890
	TPB_control	−0.218	0.388	.57	−0.979 to 0.542	0.151		1.387	.91	−2.568 to 2.870
Days
	ET_days	−0.013	0.051	.80	−0.114 to 0.087	−0.146		0.288	.61	−0.711 to 0.418

^aN/A: not applicable.