CRP and infection: Multivariate analysis using a logistic regression model showed that the decrease of platelet count is the only independent risk factor for in-hospital mortality for TMA in patients with SLE (OR, 0.936; 95% CI, 0.879–0.998; P = 0.042), while the prevalence of neuropsychiatric manifestation, infection with two or more sites, and levels of CRP and D-Dimer are not the risk factors associated with the death of TMA in patients with SLE (Table 3).