Cytogenetic studies in recurrent fetal loss.

The results of cytogenetic studies of 19 couples with a history of a malformed stillbirth plus 1 or more early spontaneous abortions were compared with those of 66 couples with a history of 2 or more early spontaneous abortions and a control group of 583 couples with no history of fetal loss. The incidence of structural chromosome abnormality was highest in the first group and there was no significant difference between groups in the incidence of polymorphisms of the 9 and Y chromosomes.