Published online January 4, 2006
PEDIATRICS Vol. 117 No. 1 January 2006, pp. e106-e112 (doi:10.1542/peds.2005-1286)
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow E-mail this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My File Cabinet
Right arrow Download to citation manager
Right arrowRequest Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Morse, S. B.
Right arrow Articles by Roth, J.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Morse, S. B.
Right arrow Articles by Roth, J.
Related Collections
Right arrow Premature & Newborn
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Facebook   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

ARTICLE

Racial and Gender Differences in the Viability of Extremely Low Birth Weight Infants: A Population-Based Study

Steven B. Morse, MD, MPHa, Samuel S. Wu, PhDb, Changxing Ma, PhDb, Mario Ariet, PhDc, Michael Resnick, EdDa and Jeffrey Roth, PhDa

a Departments of Pediatrics
b Statistics
c Medicine, College of Medicine, University of Florida, Gainesville, Florida

OBJECTIVE. The purpose of this study is to provide a race- and gender-specific model for predicting 1-year survival rates for extremely low birth weight (ELBW) infants by using population-based data.

METHODS. Birth and death certificates were analyzed for all children (N = 5076) with birth weights between 300 g and 1000 g who were born in Florida between 1996 and 2000. Semiparametric, multivariate, logistic regression analysis was used to model 1-year survival probabilities as a function of birth weight, gestational age, mother's race, and infant's gender. Estimated survival rates among different race/gender groups were compared by using odds ratios (ORs).

RESULTS. One-year survival rates for 5076 ELBW infants born between 1996 and 2000 did not change during the 5-year period (60–62%). The survival rate at ≤500 g was ≤14% (n = 716). Survival rates at 501 to 600 g and 601 to 700 g were 36% and 62%, respectively. The survival rate reached >85% for infants of >800 g. Modeling indicated a survival advantage for female infants, compared with male infants (OR: 1.7; 95% confidence interval: 1.5–1.9), and for black infants, compared with white infants (OR: 1.3; 95% confidence interval: 1.1–1.5). Black female infants had 2.1 greater odds of survival than did white male infants.

CONCLUSIONS. This population-based study highlights the significant race and gender differences in 1-year survival rates for ELBW infants, as well as the interactions of these 2 factors. These findings can assist obstetricians and neonatologists not only in the care of ELBW infants but also in frank discussions with families.

Key Words: birth weight-specific mortality rate • low birth weight infant • infant death

Abbreviations: ELBW—extremely low birth weight • OR—odds ratio • CI—confidence interval • SGA—small for gestational age

Accepted Jul 19, 2005.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Facebook Facebook   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?


This article has been cited by other articles:


Home page
 Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
L. Bennet, L. C. Booth, N. Ahmed-Nasef, J. M. Dean, J. Davidson, J. S. Quaedackers, and A. J. Gunn
Male disadvantage? Fetal sex and cardiovascular responses to asphyxia in preterm fetal sheep
Am J Physiol Regulatory Integrative Comp Physiol, September 1, 2007; 293(3): R1280 - R1286.
[Abstract] [Full Text] [PDF]