Prediction of future growth trajectories.

Mean ± sd of R2 and mean absolute error (MAE, mm) of predictions of validation data as provided by the vBGF model including cohort as predictor for both k and at the individual level (best model) and by the vBGF model with no predictors for either parameter for 20 random validation samples. In both cases, we also report mean ± sd of R2 and MAE of predictions with mean length-at-age of the respective cohort (for the model with cohort as predictor for both in k and ) and of the population as a whole (for the model with no predictors) for the same validation samples.Prediction of future growth trajectories.