Table 3.

Regression coefficients, standard errors, and model summary information for the parallel multiple mediator model among the study participants in China (N=21916)

Predictors		Y		M1		M2		Y
		β		β		β		β
X (Ref. non-smoking)	c	-0.932*	a1	0.703***	a2	0.413***	c’	-0.192
M1							b1	-0.656***
M2							b2	-0.678***
Constant	i	78.036***	iM1	5.661***	iM2	3.544***	iY	84.150***
Model fit	R2	0.1003***		0.143***		0.129***		0.332***

^*p<0.05,

^***p<0.001.