Birth weight threshold for postponing preterm birth

R. T. DePalma, K. J. Leveno, M. A. Kelly, M. L. Sherman, T. J. Carmody

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Objective: The study was designed to determine the birth weight threshold at which obstetric efforts intended to delay delivery might potentially improve rates of neonatal morbidity and mortality among pregnancies delivered after spontaneous preterm labor or rupture of the membranes. Study design: We studied 1147 singleton infants with birth weights between 1000 and 2499 gm and whose only complication was spontaneous preterm labor or preterm rupture of the membranes. The Mantel-Haenszel χ2 statistic was used to evaluate trends for neonatal mortality and several indexes of morbidity. Results: The birth weight threshold for neonatal mortality was 1600 gm (p < 0.001). For neonatal morbidity the threshold was between 1600 and 1900 gm (p < 0.008). Conclusion: Aggressive obstetric attempts to prevent preterm birth for infants whose weights exceed 1900 gm offers few apparent potential benefits.

Original languageEnglish (US)
Pages (from-to)1145-1149
Number of pages5
JournalAmerican Journal of Obstetrics and Gynecology
Volume167
Issue number4 I
StatePublished - 1992

Fingerprint

Premature Birth
Infant Mortality
Birth Weight
Premature Obstetric Labor
Morbidity
Obstetrics
Rupture
Membranes
Premature Infants
Weights and Measures
Pregnancy

Keywords

  • birth weight
  • preterm birth

ASJC Scopus subject areas

  • Medicine(all)
  • Obstetrics and Gynecology

Cite this

Birth weight threshold for postponing preterm birth. / DePalma, R. T.; Leveno, K. J.; Kelly, M. A.; Sherman, M. L.; Carmody, T. J.

In: American Journal of Obstetrics and Gynecology, Vol. 167, No. 4 I, 1992, p. 1145-1149.

Research output: Contribution to journalArticle

DePalma, R. T. ; Leveno, K. J. ; Kelly, M. A. ; Sherman, M. L. ; Carmody, T. J. / Birth weight threshold for postponing preterm birth. In: American Journal of Obstetrics and Gynecology. 1992 ; Vol. 167, No. 4 I. pp. 1145-1149.
@article{511f513196114a71a8e9103b18b832be,
title = "Birth weight threshold for postponing preterm birth",
abstract = "Objective: The study was designed to determine the birth weight threshold at which obstetric efforts intended to delay delivery might potentially improve rates of neonatal morbidity and mortality among pregnancies delivered after spontaneous preterm labor or rupture of the membranes. Study design: We studied 1147 singleton infants with birth weights between 1000 and 2499 gm and whose only complication was spontaneous preterm labor or preterm rupture of the membranes. The Mantel-Haenszel χ2 statistic was used to evaluate trends for neonatal mortality and several indexes of morbidity. Results: The birth weight threshold for neonatal mortality was 1600 gm (p < 0.001). For neonatal morbidity the threshold was between 1600 and 1900 gm (p < 0.008). Conclusion: Aggressive obstetric attempts to prevent preterm birth for infants whose weights exceed 1900 gm offers few apparent potential benefits.",
keywords = "birth weight, preterm birth",
author = "DePalma, {R. T.} and Leveno, {K. J.} and Kelly, {M. A.} and Sherman, {M. L.} and Carmody, {T. J.}",
year = "1992",
language = "English (US)",
volume = "167",
pages = "1145--1149",
journal = "American Journal of Obstetrics and Gynecology",
issn = "0002-9378",
publisher = "Mosby Inc.",
number = "4 I",

}

TY - JOUR

T1 - Birth weight threshold for postponing preterm birth

AU - DePalma, R. T.

AU - Leveno, K. J.

AU - Kelly, M. A.

AU - Sherman, M. L.

AU - Carmody, T. J.

PY - 1992

Y1 - 1992

N2 - Objective: The study was designed to determine the birth weight threshold at which obstetric efforts intended to delay delivery might potentially improve rates of neonatal morbidity and mortality among pregnancies delivered after spontaneous preterm labor or rupture of the membranes. Study design: We studied 1147 singleton infants with birth weights between 1000 and 2499 gm and whose only complication was spontaneous preterm labor or preterm rupture of the membranes. The Mantel-Haenszel χ2 statistic was used to evaluate trends for neonatal mortality and several indexes of morbidity. Results: The birth weight threshold for neonatal mortality was 1600 gm (p < 0.001). For neonatal morbidity the threshold was between 1600 and 1900 gm (p < 0.008). Conclusion: Aggressive obstetric attempts to prevent preterm birth for infants whose weights exceed 1900 gm offers few apparent potential benefits.

AB - Objective: The study was designed to determine the birth weight threshold at which obstetric efforts intended to delay delivery might potentially improve rates of neonatal morbidity and mortality among pregnancies delivered after spontaneous preterm labor or rupture of the membranes. Study design: We studied 1147 singleton infants with birth weights between 1000 and 2499 gm and whose only complication was spontaneous preterm labor or preterm rupture of the membranes. The Mantel-Haenszel χ2 statistic was used to evaluate trends for neonatal mortality and several indexes of morbidity. Results: The birth weight threshold for neonatal mortality was 1600 gm (p < 0.001). For neonatal morbidity the threshold was between 1600 and 1900 gm (p < 0.008). Conclusion: Aggressive obstetric attempts to prevent preterm birth for infants whose weights exceed 1900 gm offers few apparent potential benefits.

KW - birth weight

KW - preterm birth

UR - http://www.scopus.com/inward/record.url?scp=0026730349&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026730349&partnerID=8YFLogxK

M3 - Article

C2 - 1415408

AN - SCOPUS:0026730349

VL - 167

SP - 1145

EP - 1149

JO - American Journal of Obstetrics and Gynecology

JF - American Journal of Obstetrics and Gynecology

SN - 0002-9378

IS - 4 I

ER -