Table 4.

Associations between metabolomic principal component (PC) scores and lipid profile outcomes among 136 participants in Meta-Air study.

Lipid profiles	PC1		PC2		PC3
	β	p-value	β	p-value	β	p-value
Triglycerides a	0.005	0.801	0.003	0.902	−0.026	0.461
Total cholesterol	−2.938	0.021*	2.958	0.119	3.159	0.208
HDL-cholesterol	−0.116	0.736	0.438	0.387	1.163	0.08
LDL-cholesterol	−2.81	0.009*	2.558	0.112	2.587	0.225
VLDL-cholesterol a	0.005	0.802	0.003	0.902	−0.026	0.461

Associations reflects the change in lipid profiles measures (effect estimate β) per 1 unit change of principal component (PC) score. All associations are adjusted by covariates including age, sex, body fat percent, cigarette smoking, ethnicity/race, parental education, and community.

^*p < 0.05

^alog-transformed variables