Predictability of Persistent Frequent Attendance in Primary Care: A Temporal and Geographical Validation Study
Figure 2
Histograms showing the predicted values based on the model predictions for the three cohorts, Amsterdam I (the original (derivation) cohort) and the two external validation cohorts.
Histograms showing the predicted values based on the model predictions for the three cohorts, Amsterdam I (the original (derivation) cohort) and the two external validation cohorts, Amsterdam II and SMILE. The graphs illustrate the slight overoptimism of the original model and the shrinkage of the distributions, that is, the tails of the AMC II and SMILE cohort distributions are slightly closer to the center and predicted values smaller than 7 percent or greater than 54% no longer occur on external validation. Y-axes are frequencies.