From: Genetic influence on serum 25-hydroxyvitamin D concentration in Korean men: a cross-sectional study
 | Intraclass correlation coefficients (95% CI) | H2 (SE) | VAR (%) | ||
---|---|---|---|---|---|
Models | Between MZ twin pairs (n = 146 pairs) | Between sibling pairs (n = 147 pairs) | Between father-son pairs (n = 266 pairs) | ||
Age-adjusted | 0.61 (0.54–0.68) | 0.43 (0.34–0.51) | 0.31 (0.25–0.38) | 0.58 (0.09) | 3.7 |
Model 1a | 0.54 (0.45–0.61) | 0.34 (0.25–0.43) | 0.27 (0.20–0.34) | 0.52 (0.05) | 16.2 |
Model 2b | 0.53 (0.44–0.61) | 0.34 (0.24–0.43) | 0.28 (0.20–0.34) | 0.51 (0.09) | 16.6 |