Table 5.

Summary of simple regression analyses for variables associated with Sleep Quality and level of Depression (n = 180).

Variable	Sleep Quality				Depression
	B	SE	β	P	B	SE	β	P
Body mass index	0.10	0.05	0.14	0.05	0.10	0.07	0.01	0.89
Regular exercise	−1.39	0.54	−0.20	0.00	−2.36	0.75	−0.25	0.00
Smoking status	1.12	0.85	0.20	0.19	0.27	1.19	0.02	0.82
Age in years	0.03	0.03	0.11	0.22	0.03	0.04	0.08	0.40
Gender	1.29	0.56	0.18	0.02	1.02	0.79	0.12	0.19
Level of education	0.09	0.29	0.03	0.77	0.11	0.41	0.02	0.80
R2	0.15				0.09
F	4.48**				3.12*

Note: **P < 0.01; *P < 0.05.