Table 1.

Demographic data of patients with TTP and other TMA included in the analysis

Demographic characteristics
	TTP n = 75	Non-TTP TMA n = 57	P
Age (years)	41 (31,57)	46 (28, 60)	0.561
Female sex	46 (61.3%)	35 (61.4%)	0.760
Ethnicity/Race
White	18 (24.0%)	38 (66.6%)	<0.01
African-American	54 (72.0%)	16 (28.1%)
Other	3 (4.0%)	1 (1.7%)

Abbreviations: TMA, thrombotic microangiopathy; TTP, thrombotic thrombocytopenic purpura.

Note: Data presented as median (interquartile range [IQR]) or number (%) where appropriate.

P-Value using t-test, Mann-Whitney U test, Pearson’s chi-square test, or Fisher’s exact test as appropriate. P-Values < 0.05 are considered statistically significant.