Table II.

Frequency of pathologic diagnosis in massive perivillous fibrin deposition group and uncomplicated pregnancy group.

	Uncomplicated pregnancies (n=175)	MPFD (n=10)	p-value
Deciduitis with plasma cells	15 (8.6%)	4 (40%)	0.011
Villitis of Unknown Etiology	1 (0.6%)	1 (10%)	0.1
Chronic chorioamnionitis	30 (17%)	2 (20%)	0.7
Acute chorioamnionitis	42 (24%)	5 (50%)	0.1
Fetal vascular thrombo-occlusive disease	11 (6%)	3 (30%)	0.03
Chronic villitis	18 (10%)	3 (30%)	0.1
Evidence of fetal rejection	45 (26%)	4 (40%)	0.5

Data are expressed as number (percent).

Evidence for fetal rejection was defined as positive for either chronic chorioamnionitis, villitis, or deciduitis.