Figure 3. Unstandardized Parameter Estimates for Additive Genetic (a), Shared Environmental (c), and Nonshared Environmental (e) Effects from the Full and Best-Fitting Twin Moderation Models.
The best fitting models were the models that: 1) constrained the shared environmental quadratic moderator for the original MEBS total score; 2) constrained the shared environmental quadratic moderator and all genetic moderators for MEBS total score without binge eating; and 3) constrained all moderators (genetic, shared environmental, and non-shared environmental) for the weight/shape factor score with and without binge eating. It is important to note that the estradiol values in the figures were floored to 0 for the twin models (see Methods), and that the raw estradiol values range from 0.15–4.61 pg/ml.