Univariate analysis showed that there were significant differences in the incidence of consciousness disturbance, respiratory failure, haemorrhagic manifestations, renal dysfunction, shock, AST ≥ 400 U/L, CK ≥ 1000 U/L, CK-MB ≥ 100 U/L, LDH ≥ 1000 U/L, SCr ≥ 100 mmol/L, BUN ≥ 7.5 mmol/L, and CRP ≥ 8 mg/L between the two groups. Here, CRP is linked to respiratory failure.