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  • Title: [Methods of natural and voluntary sex selection. Value for the prevention of sex-linked malformations and of certain recurrent abortions].
    Author: Seguy B.
    Journal: J Gynecol Obstet Biol Reprod (Paris); 1975; 4(1):145-9. PubMed ID: 1065697.
    Abstract:
    Voluntary selection of the sex of a foetus may have an undeniable value in the prevention of certain diseases of malformations which are sex-linked. An indirect statistical control of the efficiency of these methods was carried out on 100 sterile treated couples. These couples agreed to respect a certain number of parameters which constitute the methods of voluntary selection of the sex of the foetus. Under these conditons and taking care that we were dealing only with cases where the sperm cell count was normal, the results were positive in 77%. It is probable the the results would have been above 80% if the parameter of the low pH of the vagina had been used as well. Attention was then directed to the possibility of using these methods to prevent certain sex-linked congenital malformations on the one hand (a classical idea) and prevention of certain repeated abortions on the other hand (a less well accepted idea). Three characteristic case histories have been reported to support these hypotheses. An indirect statistical study of the efficiency of methods of voluntary sex selection was carried out with 100 couples who had been treated for sterility. Sperm count was normal in all cases. Couples agreed to respect certain parameters which constitute the methods of voluntary sex selection. Results were positive in 77% of the cases; if the parameter of low vaginal pH had been used, it is probable that results would have been above 80%. Voluntary selection of the sex of a fetus may be valuable in the prevention of sex-linked diseases or abnormalities and in prevention of certain repeated abortions.
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