Table 2.

Associations of daytime sleepiness with alcohol variables and sleep duration.

Predictor	Subgroup	Model 1		Model 2		Model 3
		OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P
Alcohol	Log drinks/day	0.72 (0.58–0.90)	0.0046	0.78 (0.60–1.01)	0.0557	0.74 (0.58–0.95)	0.0197
	Log drinking frequency	0.87 (0.81–0.93)	0.0001	0.91 (0.84–0.99)	0.0297	0.90 (0.83–0.98)	0.0129
	Heavy drinking status	0.68 (0.43–1.07)	0.0971	0.76 (0.48–1.21)	0.2471	0.71 (0.45–1.11)	0.1311
	Log heavy drinking frequency	0.87 (0.74–1.02)	0.0805	0.89 (0.75–1.06)	0.1891	0.88 (0.75–1.04)	0.1366
Sleep duration	Hours	0.71 (0.64–0.80)	<0.0001	0.75 (0.67–0.84)	<0.0001	0.75 (0.67–0.84)	<0.0001

OR: odds ratio, CI: confidence interval, P: P value, and mo: months.

Model 1: unadjusted model.

Model 2: adjusted for age, BMI, gender, race, marital status, education, income, depression, insurance, health status, anxiety, mental health, and exercise.

Model 3: model 2 + insomnia status.