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B Rex-Kiss

Publications and source records attributed to B Rex-Kiss.

At least 19 recordsLinked to original sources
PubMed1991

Relationship between blood groups and sex ratio of the newborn.

The examinations prove that due to the foetomaternal blood group incompatibility the sex ratio of the newborn will be higher. The most probable explanation for this fact is that the foetomaternal blood group incompatibility exerts a negative effect on the X chromosome, in consequence of which the elimination rate of the zygotes fertilized by Y chromosome-carrying spermia decrease and thus the sex ratio will be higher. The highest sex ratio was found among the D-negative newborns of D-positive mothers (172.7), whereas the lowest one among the D-positive children of D-positive mothers (113.5). The incompatibility existing in the other antigens of Rh-system and in the ABO-system also elevated the sex ratio to a minor degree.

ABO Blood-Group System↗
PubMed1988

[Not Available].

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Hematology↗
PubMed1984

[Data and comments on the general validity of the weight limit of 2500 g for low-birth-weight infants].

The authors describe the role of maternal body weight, duration of pregnancy and sex of newborn in the intrauterine growth of the fetus, more exactly in the development of birth weight. In this context they dealt with the validity of the 2500 g upper limit of low-birth-weight-infants in ethnically different populations. From the findings of their studies they draw the conclusion that the weight limit of 2500 g cannot be regarded as valid for all the populations at the statement of the proportion of low-weight births. In the authors view the question of the upper limit of low-weight newborns should be revised. At the statement of the weight limit a differentiation is necessary taking into consideration the constitutional difference in the populations as well as the average birth weight of the newborn and the sex. Authors find it permissible to use the weight value of 2500 g in comparative studies only in case of some populations with identical constitutional characteristics.

Body Weight↗
PubMed1983

[Collection of obstetrical data in international cooperation].

Authors deal with the question of collecting obstetrical data within the framework of international co-operation. They mention that data collecting by individual obstetrical institutes is not suitable for getting reliable data on the degree of development of major geographical regions or countries in the field of obstetrical provision. Instead of this the authors suggest to acquire obstetrical-geographic data of central statistical institutes of the individual countries and to evaluate them in a centralized way.

Data Collection↗
PubMed1982

[Not Available].

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Blood Transfusion↗