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Biomedical subjects

J Schott

Publications and source records attributed to J Schott.

46 records · Page 3Linked to original sources
PubMed1978

[The problem of premature births in the GDR].

In a 5,5% sample of the lifeborns in the GDR in 1974 the distribution of the rate of prematures by uniquebirthes is evaluated for child bearing age, birth-order and age and order at the same time. The sample points a minimum in the group of the 2nd order and age between 25 and 30. Undependently of this result the distribution of the rate of prematures by twins is evaluated for the order of birthes and borns and for child bearing age. The influence of the twins on these distributions is discussed. Modifications of the human reproduction as a result of the decontrol of abortion in 1972 are discussed in its consequences of the rate of prematures. In consequence of the decontrol of abortion an ascent of the rate of prematures would be expected without patronize the risk for premature directly.

Female↗
PubMed1978

[Weight distribution of live births in the GDR (German Democratic Republic) in 1973].

Birth-weight-distributiones of life-borns in the GDR in 1973 show differences in all parameters as in sex of children as in professional qualification of women at the time of confinement. The results indicate the necessity to take norms of birth-weight as changeable in time and locality. It is necessary to actualize these norms continuously.

Birth Weight↗
PubMed1977

[On the epidemiology of malignant neoplasms in the German Democratic Republic in the period of 1962 to 1972 (author's transl)].

On the basis of the model for the evaluation of mass attendance, described in (2), a first survey is given on the epidemiology of malignant neoplasms (sum of all diagnoses 140-209 ICD, 8. Rev.) from 1962 to 1972. The development of prevalence in male and female populations is about the same (a clear increase during 1967 and 1969). In spite of a lower incidence of care by women than by men, the mass attendence of women is clearly greater than of men, because the prognosis for women is better than for men. The 5-years-survival rates are for women about 38% and for men only 14%. The cancer prevalence in the GDR (population about 17 Mio.) is nearly 400000, supposed that medical care for cancer patients ends only by death of the patient. An analysis of single diagnosis is not given in this paper.

Adolescent↗
PubMed1977

[Changes in the age-specific fertility distribution in the GDR (German Democratic Republic) between 1968 and 1973].

The evolution of the agespecific fertility by its dependence of the order of life-births is analysed in this paper. These terms are further calculated on the basis of life-tables. It became evident that the behavior of reproduction of women of the GDR 1968-1973 is well described by the evolution of the structure of birth-order. It is calculated, that about 5% of all women at the age of fourteen participate the reproduction of the population up to the age of forty five. The trend to 1 respectively 2 children a women was increasely carried in the years 1972/1973 so that we have a real loss by life-births.

Adult↗
PubMed1976

[A model for the valuation of mass attendance and attendance duration of patients with malignant neoplasms (author's transpl)].

By means of a combination of two methods known in demography - life table and estimates for intercensal years - probabilities of prevalence of cancer patients and duration of disease from onset to death are calculated. Starting-points are the incidence know by cancerregistration and death certificates. The results of the model are compared with the results of a special point prevalence counting. Both methods gave about the same results.

Adolescent↗
PubMedDate not supplied

Nasal admixture during mouth breathing in awake normal subjects.

We tested the flow-impeding properties of the nasopharynx in 27 healthy subjects with normal nasal resistance (mean +/- SD: 2.45 +/- 1.92 cmH20.l-1 X s). While the subjects inspired and expired deliberately through a rubber mouth-piece, a tight-fitting nose-mask was supplied with 100% O2 from a filled 30-1 rubber bag. Recording instantaneous FEO2 at the mouth was a sensitive indicator of whether nasal flow was present during the preceding inspiration. On a theoretical basis, we are describing a method of calculating the mean percentage of nasal admixture during inspiration. Fluctuations in FEO2 in relation to time revealed varying nasal flow in some individuals. The mean nasal admixture differed considerably between all subjects (mean +/- SD: 20.9 +/- 16.5%; range: 1-70%), showing no correlation to nasal resistance. Five of 27 subjects with a history of habitual mouth breathing had a significantly lower nasal admixture (2.5 +/- 1.7% vs 25.1 +/- 15.4%; p less than 0.005), with no statistical difference in nasal resistance. Present data indicate that upper airway patency is variable in normals during voluntary mouth breathing. We suggest that habitual mouth breathing with absence of nasal obstruction may be associated with velopharyngeal narrowing.

Adult↗