Table 4 Phenotypic (rP), genetic (rA) and unique environmental (rE) correlations from the best-fitting bivariate models

From: Genetic and environmental influences on blood pressure and body mass index in Han Chinese: a twin study

 

Phenotypic correlation

Additive genetic correlation

Unique environmental correlation

Proportions of r P

 

r P

95%CI

r A

95%CI

r E

95%CI

A/E

SBP and BMI

0.26

0.22–0.31

0.38

0.28–0.49

0.17

0.10–0.24

0.82/0.18

DBP and BMI

0.27

0.22–0.31

0.48

0.35–0.68

0.12

0.05–0.19

0.86/0.14

  1. Abbreviations: A, additive genetic factor; CI, confidence interval; E, unique environmental factor; h2, heritability.
  2. All phenotypes were log-transformed and adjusted for age, sex and study site.
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