Changing predictor measurement procedures affected the performance of prediction models in clinical examples

To quantify the impact of predictor measurement heterogeneity on prediction model performance. Predictor measurement heterogeneity refers to variation in the measurement of predictor(s) between the derivation of a prediction model and its validation or application. It arises, for instance, when predictors are measured using different measurement instruments or protocols.

Source: Journal of Clinical Epidemiology - November 7, 2019 Category: Epidemiology Authors: K. Luijken, L. Wynants, M. van Smeden, B. Van Calster, E.W. Steyerberg, R.H.H. Groenwold, Collaborators, D. Timmerman, T. Bourne, C. Ukaegbu Tags: Original Article Source Type: research