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Table 3 Bivariate correlation coefficients and 95% confidence intervals for ln(SBP) and ln(CHOL) indifferent relative pairs

From: Bivariate variance-component analysis, with application to systolic blood pressure and total cholesterol levels in the Framingham Heart Study

Relative pair

Correlation

Within individuals

0.24 (0.20, 0.29)

Sibling-sibling

0.047 (-0.020, 0.096)

Parent-offspring

0.008 (-0.031, 0.048)

Spouse-spouse

-0.030 (-0.110, 0.050)

Genetic (ρ a )

0.024 (-0.229, 0.278)

Environmental (ρ se )

0.33 (0.075, 0.58)

Individual (ρ e )

0.043 (0.001, 0.086)