Fig. 2From: Feasibility of coding-based Charlson comorbidity index for hospitalized patients in China, a representative developing countryAgreement between the ICD-based and diagnosis-based CCI for each index. The red horizontal line denotes a κ coefficient of 0.75. The Y-axis values denote κ coefficient, which is used as a measure of agreement variation. The red horizontal line denotes a κ coefficient of 0.75Back to article page