Differences in perinatal and infant mortality in high-income countries: artifacts of birth registration or evidence of true differences?

BMC Pediatrics
Paromita Deb-RinkerCanadian Perinatal Surveillance System Public Health Agency of Canada

Abstract

Variation in birth registration criteria may compromise international comparisons of fetal and infant mortality. We examined the effect of birth registration practices on fetal and infant mortality rates to determine whether observed differences in perinatal and infant mortality rates were artifacts of birth registration or reflected true differences in health status. A retrospective population-based cohort study was done using data from Canada, United States, Denmark, Finland, Iceland, Norway, and Sweden from 1995-2005. Main outcome measures included live births by gestational age and birth weight; gestational age-and birth weight-specific stillbirth rates; neonatal, post-neonatal, and cause-specific infant mortality. Proportion of live births <22 weeks varied substantially: Sweden (not reported), Iceland (0.00%), Finland (0.001%), Denmark (0.01%), Norway (0.02%), Canada (0.07%) and United States (0.08%). At 22-23 weeks, neonatal mortality rates were highest in Canada (892.2 per 1000 live births), Denmark (879.3) and Iceland (1000.0), moderately high in the United States (724.1), Finland (794.3) and Norway (739.0) and low in Sweden (561.2). Stillbirth:live birth ratios at 22-23 weeks were significantly lower in the United Stat...Continue Reading

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Citations

Apr 22, 2016·Journal of Perinatology : Official Journal of the California Perinatal Association·J M LorenzM E D'Alton
Oct 21, 2016·BJOG : an International Journal of Obstetrics and Gynaecology·M DelnordUNKNOWN Euro-Peristat Scientific Committee
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Aug 2, 2018·Journal of Perinatal Medicine·André Sander, Roland Wauer
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Jul 7, 2017·Current Epidemiology Reports·K S JosephSarka Lisonkova
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Apr 30, 2020·Risk Management and Healthcare Policy·Tinatin ManjavidzeErik Eik Anda
Sep 4, 2019·American Journal of Perinatology·MacKenzie LeeEmily A DeFranco

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