. Author manuscript; available in PMC: 2021 Dec 1.

Published in final edited form as: Sleep Health. 2020 Jul 12;6(6):797–803. doi: 10.1016/j.sleh.2020.05.005

Table 5.

Multivariable Adjusted Regression Examining Sleep Duration & Difference Between Weekday and Weekend Sleep Duration on Body Mass Index

Variable	B	SE(B)	β	F	P	R²	R²Δ
Model 1: Sleep Duration				4.456	.001*	.034	.006
Model 1: Sleep Duration
Very short	1.619	.844	.091		.056
Short	−.531	.923	−.027		.565
Long	4.899	1.625	.139		.003*

Model 2: Consistency				3.916	.004*	.023	−.011
Model 2: Consistency
Weekend warrior	−.287	1.336	−.010		.830
Weekend snoozer	2.832	.844	.152		.001*

Model 3: Sleep Duration + Consistency				4.273	<.001*	.044	.010
Model 3: Sleep Duration + Consistency
Very short	1.443	.877	.082	1.645	.101
Short	−.662	.816	−.040	−.811	.418
Long	4.982	1.670	.138	2.983	.003*
Weekend warrior	−.670	1.344	−.023	−.499	.618
Weekend snoozer	2.582	.839	.153	3.397	.001*

Note. All models were adjusted for employment and income. Categorical variables were represented as dummy variables; recommended sleep duration, consistent sleep duration.