Table 6.

Mediating effect of BMI on the association between niacin and disease course of asthma.

Niacin	Path	Coef	SE	P	CI [97.5%]]	Sig
	X: BMI (kg/m2)	0.102	0.023	<.001	0.147	Yes
	Y: BMI (kg/m2)	0.031	0.004	<.001	0.039	Yes
	Total	0.008	0.002	<.001	0.013	Yes
	Direct	0.005	0.002	.014	0.01	Yes
	Indirect	0.003	0.001	<.001	0.005	Yes

X stands for OBS, and Y stands for disease course of asthma course.

BMI = body mass index.