Table I.

Results from previous studies measuring plasma mannose-binding lectin level in recurrent pregnancy loss patients compared to controls.

Study	Ethnicity	p-MBL cut-off	RPL	%	Control	%	OR (P-value)
			N		N
Kilpatrick et al. (1995)	Not described	<0.63 U/ml	21/135	15.6	23/280	8.2	1.89 (0.04)
Christiansen et al. (1999)	Danish and Scottish	<50 µg/l	30/195	15.4	41/444	9.2	1.67 (0.04)
Kruse et al. (2002)	Danish	<100 µg/l	41/217	18.9	38/314	12.2	1.46 (0.02)

p-MBL, plasma mannose-binding lectin; RPL, recurrent pregnancy loss.