Figure 2

Distribution of the CCI and mCCI-A scores in the development cohort. (A) Distribution of the CCI scores (n = 399,502); (B) Distribution of the mCCI-A scores (n = 399,502). The y-axis shows the number of subjects. The solid line represents a density curve calculated by approximation to identify the overall pattern and deviation. The vertical dotted lines (red) represent the 50th, 80th, and 90th percentile values. CCI, Charlson Comorbidity Index; mCCI-A, modified version of the Charlson Comorbidity index for Asian populations.