CRP and infection: Multivariate analysis indicated that the independent risk factors for 30-day mortality were age ≥ 65 years (OR, 2.15; 95% CI 1.12–4.23), newly diagnosed disease (compared with complete remission, OR, 5.80; 95% CI 2.25–16.20), relapsed/refractory disease (compared with complete remission, OR, 6.89; 95% CI 2.98–17.88), C-reactive protein level ≥ 20 mg/L (OR, 3.35; 95% CI 1.68–6.77), polymicrobial infection (OR, 3.68; 95% CI 1.07–13.31), infections caused by MDROs (OR, 3.02; 95% CI 1.52–6.04), and inappropriate initial antibiotic therapy (OR, 2.38; 95% CI 1.11–5.13).