British journal of obstetrics and gynaecology · 1997
Medical causes on stillbirth certificates in England and Wales: distribution and results of hierarchical classifications tested by the Office for National Statistics.
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Alberman E, Blatchley N, Botting B, Schuman J, Dunn A
Аннотация
OBJECTIVE: To produce a classification of stillbirths registered in England and Wales compatible with a previously described classification for neonatal deaths; to compare national data for intrapartum stillbirths with those for the remaining stillbirths; and to report on stillbirths with a gestational age of 24 to 27 completed weeks first made registrable on 1 October 1992.
DESIGN: Algorithms were developed and tested to derive hierarchical cause classifications making use of multiple causes mentioned on stillbirth certificates.
RESULTS: The additional information available since 1986 on cause and time of death of stillbirths, classified in a hierarchical fashion allows a more meaningful interpretation of the available information on the causes of stillbirth than was previously possible and does not perturb ongoing trends. Antepartum deaths without a classifiable cause contributed the majority: between 1992 and 1994 they accounted for 43% if mentions of asphyxial conditions are regarded as classifiable causes, and 82% if not considered as causal. Stillbirths described as occurring intrapartum are consistently of higher gestational age and birthweight than the remainder, lending validity to the time of death given.
CONCLUSIONS: The national use of a classification including reported time of death of the fetus and mentions of asphyxial conditions is justifiable, providing a distinction is made between associated mentions and causal conditions. Better and more complete clinical information on stillbirth certificates will contribute further to understanding of their causes.
DESIGN: Algorithms were developed and tested to derive hierarchical cause classifications making use of multiple causes mentioned on stillbirth certificates.
RESULTS: The additional information available since 1986 on cause and time of death of stillbirths, classified in a hierarchical fashion allows a more meaningful interpretation of the available information on the causes of stillbirth than was previously possible and does not perturb ongoing trends. Antepartum deaths without a classifiable cause contributed the majority: between 1992 and 1994 they accounted for 43% if mentions of asphyxial conditions are regarded as classifiable causes, and 82% if not considered as causal. Stillbirths described as occurring intrapartum are consistently of higher gestational age and birthweight than the remainder, lending validity to the time of death given.
CONCLUSIONS: The national use of a classification including reported time of death of the fetus and mentions of asphyxial conditions is justifiable, providing a distinction is made between associated mentions and causal conditions. Better and more complete clinical information on stillbirth certificates will contribute further to understanding of their causes.