Fig. 5From: Development and internal validation of an algorithm for estimating mortality in patients encountered by physician-staffed helicopter emergency medical servicesCalibration of the CHAMP (Critical HEMS Algorithm for Mortality Prediction) algorithm (solid line) with 95% confidence interval (shaded grey area) in the original nonimputed study population. The line was fitted using the generalised additive model (GAM). The dashed line represents ideal calibrationBack to article page