Das Skeletsystem

Lenz, W

doi:10.1007/978-3-642-85782-9_2

Cited by 3 publications

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“…In the GDR the multiple birth rate of women aged 35-40 is almost three times higher than that of women in the age group 15-20. Whether there is a decrease in the multiple birth rate of women over 40 years of age held by Lenz (1954) and other authors can be neither confirmed nor rejected because of the small number of mothers in this age group. The decrease in the multiple birth rate from 1.93% in 1971 to 1.83% in 1972 and to 1.84% in 1973 can be attributed to the fact that a considerable proportion of older women passes out of reproduction, with a relative increase of younger mothers at the same time.…”

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confidence: 88%

Twin Pregnancy as a High Risk Pregnancy: New Medical Statistical Data from the German Democratic Republic

Leetz¹

1976

Acta genet. med. gemellol.

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In 1972 the rate of multiple births showed a much more substantial decrease than in the years before. In the period 1963-1971 it dropped from 20.3% to 19.3% and in 1972 to 18.3%. The frequency of low birth weight in children from a multiple birth is 10 times higher than in all newborn children and the early neonatal mortality of children from a multiple birth is 8 times higher than that of all newborn infants. Cerebral damage is 30 times higher in children of low birth weight than in children of normal birth weight. In the period 1965-1967 perinatal death associated with cerebral damage (recorded on the death certificate) accounted for 5.7% of all children of low birth weight and for 0.2% of children weighing at birth over 2500 g. Early diagnosis of multiple pregnancy and early in-patient care of women with multiple pregnancy will improve the development of multiple fetuses and give children from a multiple birth much better chances in life. In all twin studies it has to be considered that a relatively high proportion of twins is affected to a higher or lesser degree by cerebral damage.

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confidence: 88%

Twin Pregnancy as a High Risk Pregnancy: New Medical Statistical Data from the German Democratic Republic

Leetz¹

1976

Acta genet. med. gemellol.

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“…Bayley konnte auf Grund seiner Längsschnittuntersuchungen an amerikanischen Kindern, die bis ins Erwachsenenalter regelmäßig beobachtet wurden, die Frage prüfen, wieweit zwischen Ossifikation und bereits erreichter Körper höhe eine Beziehung zu der zu erwartenden endgültigen Körper höhe besteht. Er stellte Tabellen auf (s. Lenz, 1954), mit deren Hilfe man die Erwachsenengröße weitgehend Voraussagen kann, wenn die drei Daten (Lebensalter, Skelettreifestand und Körperhöhe) ge geben sind. -Sawtell glaubt auf Grund seiner Untersuchungen, daß nur zwischen der Ossifikation der Epiphysen und dem Körperwachs tum ein Zusammenhang bestünde (r=-t-0,32 bis r= + 0,51), die Ossifikation der Handwurzel aber verhältnismäßig unabhängig vom Gesamtwachstum sei, was Robinow bestätigte.…”

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