Comparison of patients of 3-month mortality according to Charlson comorbidity index, serum LDH, and sex. Three-month mortality rates are significantly better in group with low (n=49) than high (n=19) CCI (P<0.001) (A). Also, 3-month mortality rates are significantly better in group with serum LDH, female than high serum LDH, male (B, serum LDH; C, sex). CCI, Charlson comorbidity index; LDH, lactate dehydrogenase.