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Calibration belt for the Simplified Acute Physiology Score 3. Standardized mortality ratios with their 95% confidence intervals. The degree of the polynomial, the Wald statistics results and the number of patients are given in the upper-left quadrant. In the lower right quadrant, the times the calibration belt significantly deviates from the bisector using 80% (light gray area) and 95% (dark gray boundaries) confidence levels are reported. Courtesy: Dr. Pedro Brasil.
