Explained variance after internal validation.

<p>Explained variance after internal validation.</p

Linear regression model predicting HbA1c levels after 6 years.

<p>Linear regression model predicting HbA1c levels after 6 years.</p

Baseline characteristics of the 4 datasets.

<p>Baseline characteristics of the 4 datasets.</p

Calibration graphs (in deciles) of the prediction model after internal validation.

<p>(A) For men, in the development dataset (The Hoorn Study, The KORA S4/F4 Study and the Inter99 Study combined). (B) For men, in the development dataset, stratified per cohort: Hoorn Study (dots), KORA F4/S4 Study (squares), Inter99 Study (triangles). (C) For women, in the development dataset (The Hoorn Study, The KORA S4/F4 Study and the Inter99 Study combined). (D) For women, in the development dataset, stratified per cohort: Hoorn Study (dots), KORA F4/S4 Study (squares), Inter99 Study (triangles). (E) For men, in the external validation dataset (The METSIM Study). The diagonal line indicates perfect calibration.</p