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Table 3 Demographic and clinical characteristics of women according to pregnancy outcome

From: Pregnancy complications in acquired thrombotic thrombocytopenic purpura: a case–control study

  Gravidic TTP (n = 4) Miscarriage (n = 5) Uncomplicated pregnancy (n = 6)
Maternal age at pregnancy, median [range], years 28 [24–34] 32 [26–38] 33 [29–36]
Primigravidae 2 2 5
History of recurrent TTP (>1 episode) 1 1 4
Months since last TTP episode, median [range] 29 [20–107] 17 [2–38] 35 [5–70]
ADAMTS13 activity (%) in the first trimester, median [range] (available) <3 (2) 20 [14–40] (3) 90 [40–129] (5)
Positive anti-ADAMTS13 antibodies in the first trimester (available) 2 (2) 3 (3) 0 (5)
Positive anti-ADAMTS13 antibodies in any trimester (available) 4 (4) 3 (3) 0 (6)