Table 1.
Clinical characteristics of patients on diagnosis and outcome according to ethnicity.
Fig 1.
Kaplan-Meier survival estimates of overall survival in patients with TTP as a function of ethnicity (Black patients, n = 74; White patients, n = 224).
Survival in both groups was compared with the Kaplan-Meier estimator.
Table 2.
Multivariate analysis.
Table 3.
Comparison of HLA-DRB1*04 allele frequencies between Black and White populations.