. Author manuscript; available in PMC: 2023 Oct 1.

Published in final edited form as: Obesity (Silver Spring). 2022 Sep 5;30(10):2023–2033. doi: 10.1002/oby.23513

Table 3.

Results of multilevel models examining daily sleep diary indices and change in waist circumference (cm) since job loss (n = 191).

	Model E		Model F		Model G		Model H

Fixed Effects	Estimate	SE	Estimate	SE	Estimate	SE	Estimate	SE
Intercept	107.38^***	1.33	107.59^***	1.33	107.44^***	1.34	107.52^***	1.34
Not Obese (BMI < 30)	−12.16^***	1.24	−12.48^***	1.24	−12.17^***	1.24	−12.27^***	1.24
Months since job loss, rate	−0.19	0.13	−0.22	0.14	−0.20	0.14	−0.21	0.14
Months since job loss, curvature^e−3	6.15	5.91	7.69	5.90	7.42	5.91	7.45	5.91
Not Obese x Mo since job loss, rate	0.62^***	0.17	0.69^***	0.17	0.66^***	0.17	0.67^***	0.17
Not Obese x Mo since job loss, curvature^e−3	−20.23^**	7.62	−23.54^**	7.57	−23.09^***	7.59	−23.17^**	7.58
Sleep Quality	−4.60^*	1.97
Sleep Quality x Mo since job loss, rate	−.14^*	0.06
Total sleep time, min			−0.01	0.02
TST x Mo since job loss, rate^e−3			0.85	0.54
Wake time after sleep onset (WASO), min					0.01	0.07
WASO x Mo since job loss, rate^e−3					2.08	1.97
Sleep efficiency (SE), %							−14.17	17.68
SE x Mo since job loss, rate							−0.10	0.53


Variance Components
Level 1: Within Person	9.45^***	0.73	9.48^***	0.74	9.45^***	0.73	9.45^***	0.74
Level 2: Intercept	220.14^***	28.01	225.12^***	28.78	227.81^***	29.14	225.95^***	28.98
Level 2: Rate of Change	0.44^**	0.16	0.49^**	0.17	0.48^**	0.17	0.48^**	0.17
Level 2: Curvature^e−3	0.74^*	0.31	0.78^*	0.32	.78^*	0.32	0.77^*	0.32
Level 2: Intercept x Rate of Change	3.75^*	1.74	4.52^*	1.79	4.46^*	1.80	4.48^*	1.80
Level 2: Intercept x Curvature	−0.22^**	0.08	−0.25^**	0.08	−0.25^**	0.08	−0.25^**	0.08
Level 2: Rate of Change x Curvature^e−3	−15.54^*	6.81	−16.92^*	7.13	−16.74^*	7.10	−16.70^*	7.10

Goodness of Fit
-2LL	5218.84		5229.91		5231.13		5231.65
AIC	5248.84		5259.91		5261.13		5261.65
BIC	5319.41		5330.48		5331.7		5332.22

p < .05

^**

p < .01

^***

p < .001.

^e−3

Parameters displayed in scientific notation, value x 10^-3.

Note. Values of sleep quality, total sleep time, wake time after sleep onset, and sleep efficiency are grand mean centered. BMI stands for Body Mass Index. Model E tests whether sleep quality at baseline moderates an increase in waist circumference (WC). Model F tests whether total sleep time at baseline moderates an increase in WC. Model G tests whether wake time after sleep onset at baseline moderates an increase in WC. Model H tests whether sleep efficiency at baseline moderates an increase in WC.