© 1998 Oxford University Press
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NICE, a new cause of death classification for stillbirths and neonatal deaths
aDepartment of Pediatrics, Umeä University Sweden
bDepartment of Pediatrics, Children's Hospital Uppsala Sweden
cTomblad Institute, University of Lund Sweden
Reprint requests: Dr Ingrid Winbo, Department of Pediatrics, Umeä University Hospital, S-90185 Umeä Sweden
BACKGROUND: Stillbirths and neonatal deaths are often the result of a complicated chain of events. For epidemiological purposes a classification into single cause of death groups is essential. For large-scale studies, a method is needed which enables such grouping based on available register data.
METHODS: A cause of death dassification system called NICE is presented. It is hierarchical and is aetiologicafly orientated. A computerized method is adapted which makes use of data in four central Swedish registries. A validation of the computer method has been made from the medical records on a 10% sample of all stillbirths and neonatally dead infants in Sweden from 1983 to 1990.
RESULTS: The specificity of the computer method is high, sensitivity is less satisfactory for some subgroups. A time trend analysis illustrates the usefulness of the classification system and shows a decline with time for two groups: placental abruption and obstetric complications.
CONCLUSIONS: The NICE classification system fulfils the criteria of an aetiologically orientated classification system which can be used in a computerized environment.
Keywords Cause of death, perinatal, neonatal, classification
Accepted 22 September 1997
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