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A The nomogram for hospital mortality in SCAP patients with COPD. Age (years old); Diabetes and Chronic renal diseases (1: yes; 0: no); SBP (Systolic blood pressure, mmHg); Fibrinogen (g/L); IL-6 (interleukin-6, pg/mL) BUN (blood urea nitrogen, mmol/L). B Calibration curve of nomogram in training set. C Calibration curve in testing set. SCAP severe community-acquired pneumonia; COPD chronic obstructive pulmonary disease
