Table 2.

Rate of early ADAMTS13 recovery and relapse

	No. of episodes	Mean ADAMTS13 recovery slope	95% CI	P
Treatment				.11
Rituximab	103	0.9	0.82-0.99
Corticosteroids alone	13	0.96	0.73-1.19
Other	12	0.65	0.39-0.90
Race				.89
Black	79	0.88	0.79-0.98
White	43	0.91	0.76-1.06
Other/unknown	6	0.96	0.61-1.32
	No. of episodes	HR (per +0.25 increase in ADAMTS13 recovery slope)	95% CI	P
All	128	0.79	0.64-0.98	.03
Rituximab only	103	0.92	0.71-1.18	.5
De novo, rituximab	28	0.58	0.18-1.83	.35
Relapsed, rituximab	75	0.99	0.75-1.31	.94