Research Paper Volume 12, Issue 4 pp 3190—3204
Development and validation of a nomogram to predict coronary heart disease in patients with rheumatoid arthritis in northern China
Figure 3. Calibration curves of the CHD and the model with the addition of sex and age prediction in each cohort. Abbreviation: (A) Calibration curve of the CHD in the simple model of the development cohort. (B) Calibration curve of the complex model with addition of adjusted sex and age in the development cohort. (C) Calibration curve of the CHD in the simple model of the validation cohort. (D) Calibration curve of the complex model with addition of adjusted sex and age in the validation cohort.