Figure 1.

The genetic and individual-specific environmental contribution to the adiponectin–TH-BMC association (A) and to the leptin–TH-BMC association (B) in 260 male adolescent twin pairs, as well as to the leptin–TH-BMC association in 257 female adolescent twin pairs (C). a², c², and e² denote percentage of total phenotypic variance accounted for by genetic factors, shared environmental factors, and individual-specific environmental factors, respectively; r_G and r_E, genetic and individual-specific environmental correlation, respectively; r_TP, total phenotypic correlation; C_GCP, genetic contribution to total phenotypic correlation; C_ECP, individual-specific contribution to total phenotypic correlation.