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Table 4 Independent risk factors of 28-day mortality and nomogram score

From: Development and validation of a risk factor-based system to predict short-term survival in adult hospitalized patients with COVID-19: a multicenter, retrospective, cohort study

Factors Multivariable HR (95% CI) P value Nomogram score
Age, years#   1.05 (1.03–1.07) < 0.001 (Age-20) × 1.25
NLR > 8.0 2.63 (1.55–4.40) < 0.001 26.60
≤ 8.0 1 (ref)   0
Direct bilirubin, μmol/L > 5.0 1.77 (1.15–2.76) 0.010 16.06
≤ 5.0 1 (ref)   0
LDH level, U/L > 360 11.77 (5.62–24.65) < 0.001 67.63
≤ 360 1 (ref)   0
  1. # per 1 unit increase
  2. HR hazard ratio, ref reference, NLR neutrophil-to-lymphocyte ratio, LDH lactate dehydrogenase, CI confidence interval