Table 3.

Heritability estimates for each lipid trait

Trait	Genetic Variance explaineda [Lower 95CI, Upper 95CI]	Pvalue (Genetic variance)	Variance explained by sampling unit (block group)	Variance explained by household	Variance explained by environment
Total cholesterol	0.22 [0.15, 0.29]	<0.001	0.002	0.047	0.731
Triglycerides	0.24 [0.18, 0.31]	<0.001	0.003	0.027	0.73
HDL-cholesterol	0.24 [0.17, 0.3]	<0.001	0.012	0.056	0.694
LDL-cholesterol	0.21 [0.14, 0.27]	<0.001	0.001	0.058	0.735

Lower 95CI: lower 95% confidence interval, Upper 95CI: upper 95% confidence interval

^a Genetic Variance: is the proportion of variance accounted for by relatedness