The influence of the age of parents on the vitality of their children / by Joseph Korösi.

  • József Kőrösy
Date:
1891
Catalogue details

Licence: Public Domain Mark

Credit: The influence of the age of parents on the vitality of their children / by Joseph Korösi. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    of this cause should be found without any connection wilth parental age; ]3ut the fact of a greater dependency of intra- uterine causes will furnish a valuable aflirniation coiicerning the supposed causality betwen the age of the generators and the uterine causes of death of the generated. Now the mortality of equirnaternal children is the following: x\niongst hundred deceased children the canse of death was Weak disposition Other uterine causes Age of the mother Whilst diarrhoea —20 years 35.20Vo 22.317o 26.2970 20—30 » 21-6570 14-317o 21-8970 38—35 » 14-047o 12-857o 18-057o above 35 » 15-357o 13-457o 19-257o To illustrate in a clearer ^vay wliich ( hanges of mor- tality are caused by the change i of maternal age, let us pid the mortality from 20 to 30 years =^ 100. In this case Ave get the following table: —20 years 163 156 120 20—30 » 100 100 100 30—35 » 65 90 82 above 35 » 71 94 88 As the limit of the age of 20 was chosen only for the sake of the round number, it is of interest to investigate, how the ligures are shaping themselves in each year em- braced at a first class of age. It is a pity that even in the course of seven years observations so little material could be gathered respecting the youngest mothers, that it Avould not be advisable to calculate the percentage of cases of
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