Finally, fitting a genetic simplex model with transmission and innovation terms did not worsen the model fit (model 5a: χ2 (10) = 11.62, p = 0.311). The final model without genetic innovation terms did not fit significantly worse than the model with genetic innovation (model 5b: χ2 (5) = 8.81, p = 0.147). This final model showed that one stable genetic factor was influencing the CAGE over age.
