Table 3.

Linear regression models considering the change in the 4 WHOQOL-BREF domains (physical, psychological, social, and environmental) before and during the pandemic as dependent variables.

	Physical			Psychological			Social			Environmental
	Coeff	Std. Error	P	Coeff	Std. Error	P	Coeff	Std. Error	P	Coeff	Std. Error	P
∆PSQI	−1.40	0.66	.036	−0.62	0.49	.210	−0.94	0.99	.343	0.32	0.47	.492
∆ESS	−0.84	0.27	.003	−0.57	0.27	.036	0.06	0.55	.913	−0.0	0.26	.987
Model			<.001			.064			.821			.403

Coeff = coefficient, ∆ESS = change in the Epworth Sleepiness Scale before and during the pandemic, ∆PSQI = change in the Pittsburgh Sleep Quality Index before and during the pandemic, Std. Error = standard error, WHOQOL-BREF = World Health Organization Quality of Life Questionnaire-abbreviated version.