Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by LIE, R. T.
Right arrow Articles by BERGSJØ, P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by LIE, R. T.
Right arrow Articles by BERGSJØ, P.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

American Journal of Epidemiology Vol. 125, No. 6: 1066-1078
Copyright © 1987 by The Johns Hopkins University School of Hygiene and Public Health

research-article

SECULAR CHANGES IN EARLY NEONATAL MORTALITY IN NORWAY, 1967–1981

ROLV T. LIE1,, LORENTZ M. IRGENS2, ROLV SKJÆRVEN1 and PER BERGSJØ3

1Medical Birth Registry of Norway, University of Bergen Norway
2Institute of Hygiene and Social Medicine, University of Bergen Norway
3Department of Obstetrics and Gynecology, University of Bergen, Norway. (Visiting Scientist at the National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, during part of the study.)

Reprint requests to Dr. Rolv Terje Lie, Medical Birth Registry, University of Bergen, MFH Building, N-5016 Haukeland sykehus, Norway

Two five-year cohorts, 1967–1971 and 1977–1981, of the Medical Birth Registry of Norway, were utilized to analyze secular trends in early neonatal mortality rates, controlling simultaneously for birth weight parity, maternal age, and sex. Improvement in the crude early neonatal mortality rate, from 6.5 to 2.9 per 1,000, was partitioned into one portion (18.4%) attributable to changes in the distribution of the birth weight or the other independent variables and another portion (81.6%) attributable to improved survival within each specific subgroup in the multivariate table. The early neonatal mortality rate was found to decrease in all subgroups, the low birth weight groups showing a significantly greater decline than the normal birth weight groups. Women with diabetes, epllepsy, or blood group antibodies were studied in separate analyses. For women with diabetes, the odds ratio of the early neonatal mortality rate between the first and the second periods was found to be three times the odds ratio for women without diabetes, and 2.9% of the total improvement of the crude early neonatal mortality rate was attributable to an improved survival in these infants.

birth weight; diabetes mellitus; infant mortality; parity


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Scand J Public HealthHome page
A. Ericson, M. Eriksson, B. Kallen, and R. Zetterstrom
Secular Trends in the Effect of Socio-Economic Factors on Birth Weight and Infant Survival in Sweden
Scand J Public Health, March 1, 1993; 21(1): 10 - 16.
[Abstract] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.