Table 3.

Summary of Generalized Linear Regression Models predicting BRS (N = 53)

Variable	Coefficient	SE	Χ2
Model 1 (Time in Bed)
Age	−0.02	0.01	11.81***
BMI	−0.00	0.01	<1.00
Cardiac-affecting medications	−0.04	0.20	<1.00
TIBa	−0.00	0.00	1.98
Group	−1.18	1.06	1.24
TIB X Group	0.00	0.00	<1.00
Model 2 (Total Sleep Time)
Age	−0.02	0.01	9.80**
BMI	−0.00	0.01	<1.00
Cardiac-affecting medications	−0.07	0.20	<1.00
TSTb	−0.00	0.00	3.36
Group	1.96	0.96	4.19*
TST X Group	0.00	0.00	2.88
Model 3 (Wake After Sleep Onset)
Age	−0.02	0.01	13.05***
BMI	0.00	0.01	<1.00
Cardiac-affecting medications	−0.03	0.19	<1.00
WASOc	−0.00	0.00	<1.00
Group	0.08	0.34	<1.00
WASO X Group	−0.01	0.01	1.65
Model 4 (Wake After Sleep Onset Percentage)
Age	−0.02	0.01	10.42**
BMI	0.00	0.01	<1.00
Cardiac-affecting medications	−0.05	0.18	<1.00
WASO%	0.03	0.03	1.18
Group	0.48	0.38	1.59
WASO % X Group	−0.07	0.03	5.81*
Model 5 (Sleep Efficiency)
Age	−0.02	0.01	10.11**
BMI	0.00	0.01	<1.00
Cardiac-affecting medications	−0.05	0.20	<1.00
Sleep efficiency	−0.02	0.02	1.34
Group	−3.62	1.73	4.70*
Sleep Efficiency X Group	0.04	0.02	3.86*
Model 6 (Sleep Onset Latency)
Age	−0.02	0.01	10.88**
BMI	−0.00	0.01	<1.00
Cardiac-affecting medications	−0.08	0.20	<1.00
SOLd	0.01	0.01	1.60
Group	−0.24	0.21	1.30
SOL X Group	−0.01	0.01	1.36
Model 7 (Fragmentation Index)
Age	−0.02	0.01	12.24***
BMI	0.00	0.01	<1.00
Cardiac-affecting medications	−0.01	0.18	<1.00
Fragmentation index	0.02	0.01	2.04
Group	0.71	0.44	2.71
Fragmentation Index X Group	−0.04	0.01	6.94**

^*p < .05,

^**p < .01,

^***p < .001.

^aTime in Bed,

^bTotal Sleep Time,

^cWake after Sleep Onset,

^dSleep Onset Latency