Women with subnormal MBL levels (post-delivery MBL levels <1000 ng/ml, and/or MBL2 genotypes associated with low and intermediate MBL levels) did not have more obstetric complications (premature delivery, spontaneous abortion, caesarean section, preeclampsia) than MBL sufficient women (women with MBL after delivery >1000 ng/ml and/or women with MBL2 genotypes associated with normal/high MBL levels); similarly, the birth weight of the infants did not significantly differ between the subgroups. This evidence concerns the gene MBL2 and preeclampsia.