Table 4.

Comparing suicidal ideation, timing of wakefulness, and other sleep variables

Weekday or weekend	Weekdays/workdays			Weekends/Non-workdays
Predictors	OR	95% CI	P-value	OR	95% CI	P-value
Morning wakefulness	0.88	[0.76, 1]	0.0562	0.89	[0.78, 1.01]	0.0826
Short sleep	1.13	[0.74, 1.73]	0.5640	1.15	[0.72, 1.83]	0.5645
Long sleep	1.48	[0.59, 3.37]	0.3757	1.55	[0.56, 3.84]	0.3626
ISI score	1.06	[1.02, 1.11]	0.0083	1.05	[1, 1.1]	0.0729
PSQI score	1.11	[1.04, 1.2]	0.0027	1.11	[1.03, 1.21]	0.0104
Advanced phase	1.33	[0.77, 2.26]	0.3006	1.34	[0.69, 2.47]	0.3691
Delayed phase	1.46	[1.01, 2.1]	0.0449	1.55	[1.01, 2.37]	0.0447
Predictors
Nighttime wakefulness	1.25	[1.09, 1.44]	0.0020	1.09	[0.94, 1.26]	0.2337
Short sleep	0.94	[0.61, 1.43]	0.7641	1.07	[0.67, 1.71]	0.7771
Long sleep	1.70	[0.69, 3.82]	0.2205	1.66	[0.61, 4.09]	0.2889
ISI score	1.06	[1.01, 1.11]	0.0150	1.04	[0.99, 1.1]	0.1019
PSQI score	1.12	[1.05, 1.21]	0.0014	1.12	[1.03, 1.21]	0.0068
Advanced phase	1.44	[0.83, 2.45]	0.1865	1.31	[0.67, 2.44]	0.4095
Delayed phase	1.38	[0.96, 1.99]	0.0843	1.66	[1.09, 2.5]	0.0170