Table 1. Clinical characteristics of patients on admission.

	n (%)	Median (IQR)	Associated risk factors for the development of TMA	n (%)
Total number of patients	62		Infection	18 (29.0)
Age at first event (yr)		35 (27–49)	Pulmonary infection	5 (8.1)
Female gender	40 (64.5)		Diarrhea	7 (11.3)
Male gender	22 (35.5)		Pregnancy / oral contraceptives	8 (12.9)/2 (3.2)
Patients with single event	51 (82.3)		Renal transplantation	4 (6.5)
Patients with relapsing TMA	11 (17.7)		Malignancy	4 (6.5)
Neurological symptoms	32 (51.6)		SLE	3 (4.8)
Renal impairment	39 (62.9)		Systemic sclerosis	2 (3.2)
Dialysis treatment	32 (51.6)		Drugs	2 (3.2)
			Unknown	19 (30.6)

IQR: Interquartile range.