Skip to main content
Fig. 3 | Critical Care

Fig. 3

From: Determinants of the calibration of SAPS II and SAPS 3 mortality scores in intensive care: a European multicenter study

Fig. 3

Observed and expected calibration curves for the Simplified Acute Physiology Score (SAPS) II score (top) and SAPS 3 score (bottom) in 120 centers and between-center variability in standardized mortality ratio (SMR). a Calibration curves of SAPS II in each of the 120 centers fitted with a logistic regression model. The black line represents the overall calibration curve. b Expected calibration curves of SAPS II under the assumption that the calibration is the same in all centers. The represented between-center variability is the random (sampling) variability. c Distribution of the SD of the center-specific SMRs under the assumption that the calibration of SAPS II is the same in all centers. The vertical line represents the observed value of the SD. df are the same figures shown in ac repeated for the SAPS 3 score

Back to article page