[Population-genetical study of differential fertility in humans (based on an example of habitual abortion). I. Approach to the problem and analysis of morpho-physiological and demographic traits].

It was shown that women from the studied group of married couples, suffering from repeated spontaneous abortions (the main group), have earlier menarche and their husbands are taller, as compared with the control group of couples with normal reproductive performance. The degree of similarity between mates in age and stature appeared to be lower in the main group than in the control group. The variation of the characters under study is supposed to provide an auxiliary criterion in selecting couples at high risk of repeated spontaneous abortions.