Abbreviations: COPD, Chronic obstructive pulmonary disease; SBP, systolic blood pressure; DBP, diastolic blood pressure; WBC, white blood cell count; RBC, red blood cell count; Hb, Hemoglobin; PLT, platelet count; LYM, lymphocyte count; ALT, alanine aminotransferase; AST, aspartate transaminase; Cr, creatinine; eGFR, estimated glomerular filtration rate; UA, uric acid; TC, total cholesterol; TG, triglyceride; HDL, high density lipoprotein; LDL, low density lipoprotein.

Table 2. Effects of various variables on in-hospital death in Cox regression analysis.