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Results for “Mortality--statistics”

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At least 631 records · Page 35Linked to original sources
PubMed1981

Perinatal outcome in Western Australia, 1968 to 1976. Perinatal mortality and birthweight.

Trends in perinatal mortality and low birth-weight in Western Australia were analysed by means of a linked file of perinatal death and birth registration papers for the years 1968 to 1975. Stillbirth rates fell only slightly, and there was no improvement in low birthweight stillbirth rates. There was increased ascertainment of low birthweight stillbirths after 1968 when the definition changed. Neonatal mortality fell markedly after 1971, much of the fall being due to a shift in the birthweight distribution towards heavier babies, particularly in males. The proportion of babies with birthweights of less than 2500 g fell from nearly 6% to 5.3%. The impact of changes in the obstetric care of premature labour were minimal up to 1975, with rural (away from specialist care) low birthweights rates differing only slightly from metropolitan rates. Social and demographic differences probably account for the major differences in stillbirth rates between areas. Neonatal mortality rates in low birthweight babies showed a definite advantage for babies living close to neonatal intensive care facilities. However, decisions to expand neonatal intensive care facilities to rural areas need to take into account other adverse perinatal risk factors.

Australia↗
PubMed1978

[A modification of the Gompertz plot resulting from the age index by Ries and an approximation of the survivorship curve (author's transl)].

The shape of the survivorship curve can easily be interpreted on condition that the probability of death is proportional to an exponentially rising function of ageing. According to the formation of a sum for determining of the age index by Ries it was investigated to what extent the survivorship curve may be approximated by a sum of exponentials. It follows that the difference between the pure exponential function and a sum of exponentials by using possible values is lying within the random variation. Because the probability of death for different diseases is variable, the new statement is a better one.

Adolescent↗
PubMed1978

A method of mortality analysis: application to breast cancer.

A regression analysis of mortality can benefit from the introduction of certain apparently redundant factors. Following a description of the method of calculating the regression coefficients, data on mortality from breast cancer in England and Wales for 1951-1970 are analysed as a function of age group, quinquennium of birth and quinquennium of death.

Age Factors↗
PubMed1978

The effect of accessing medical records by date of death on estimates of survival.

An inefficient, but quickly and easily calculated, estimate of a survival-time distribution is described. Conditions for the estimate to be unbiased specify bounds on the length of time a study has been in progress and the way in which people must enter a study. These appear to be frequently met when a large medical registry is examined with a view to establishing base line survival experience for a selected class of patients.

Epidemiologic Methods↗
PubMedDate not supplied

Perinatal and neonatal mortality and morbidity in Lusaka, 1976.

A prospective study of perinatal and neonatal mortality and morbidity at the University Teaching Hospital (UTH), Lusaka for 1976 is presented. The early neonatal mortality of the babies born in hospital was 28.7 per 1000 live-births; it was 239.96 per 1000 admissions of those born outside the hospital. The still-birth rate in the hospital-born babies was 25.2 per 1000 deliveries; the perinatal mortality was 53.3 per 1000 deliveries; and the neonatal mortality in the hospital-born was 31.1 per 1000 live-births. The cause of death were asphyxia, infections could injury, respiratory distress syndrome, congenital malformation and intracranial haemmorrhage. If the perinatal and neonatal mortality and morbidity are to be reduced, much effort and co-operation of all concerned with the health of the expectant mother, and her child are required. Records of birth-weights, stillbirth, and causes of deaths in the University Teaching Hospital (UTH) for the year 1976 have been analysed. The aim is to provide a basis for future comparisons and improvement of the care given to newborns.

Female↗
PubMed1979

George Stroh.

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Austria↗