Table 2.

Regression coefficients for the mediator model among the study participants.

Predictors	Utility values	Sleep difficulty	Utility values
Chronic disease (Ref. non- chronic disease)	-0.0084**	0.5737***	-0.0062*
Sleep difficulty (Ref. non-sleep difficulty)			-0.0168***

*P < 0.05, **P < 0.01, ***P < 0.001.