Document Detail

Indirect standardization of neonatal mortality for birth weight.
MedLine Citation:
PMID:  7095964     Owner:  NLM     Status:  MEDLINE    
Recent advances in perinatal medicine, together with the proliferation of regionalized perinatal networks, have increased the need for monitoring of trends and variations in birth weight-specific perinatal mortality rates. Since the United states has no national system of linked birth and death records, the only available method for comparing weight-specific mortality among geographic areas or medical care facilities in through indirect standardization of mortality for birth weight. This paper investigates the characteristics of the Standardized Mortality Ratio (SMR) obtained by indirect standardization using 1974-77 neonatal mortality and birth weight data for 202 geographic areas across the United States. The results show that the SMR is not sensitive to the choice of standard rates even when the area's birth weight-specific mortality rates are not a constant multiple of standard rates. A method for estimating the standard error of the SMR without knowledge of the weight-specific rates is presented and shown to be nearly unbiased. There is also a substantial amount of variation among geographic areas in both neonatal mortality rates, SMRs, and birth weight distributions. Thus, despite certain limitations, the SMR provides a useful summary measure for monitoring trends and variations among geographic areas or medical care facilities in birth outcome.
J C Kleinman
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of epidemiology     Volume:  11     ISSN:  0300-5771     ISO Abbreviation:  Int J Epidemiol     Publication Date:  1982 Jun 
Date Detail:
Created Date:  1982-09-24     Completed Date:  1982-09-24     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7802871     Medline TA:  Int J Epidemiol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  146-54     Citation Subset:  IM    
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MeSH Terms
Birth Weight*
Epidemiologic Methods
Infant Mortality*
Infant, Low Birth Weight
Infant, Newborn
Statistics as Topic
United States

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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