Does length of labor vary by maternal age?

Mara B. Greenberg, Yvonne W. Cheng, Margaret Sullivan, Mary E. Norton, Linda M. Hopkins, Aaron Caughey

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

Objective: The purpose of this study was to examine lengths of first and second stages of labor across maternal age groups to determine whether different norms should be established. Study Design: We conducted a retrospective cohort study of all laboring, term, singleton, and cephalic deliveries at a single institution between 1980-2001. Median lengths of labor were compared among 6 maternal age groups. Statistical comparisons were made using Kruskal-Wallis and Wilcoxon rank sum tests. Multivariable linear and logistic regression models were performed. Results: Among 31,976 births, length of labor differed significantly by maternal age for both nulliparous and multiparous women. Younger nulliparous women (age, 39 yrs). After we controlled for potential confounders, we found that older women had a persistently higher likelihood of experiencing longer labor and prolonged labor than younger women. Conclusion: Length of labor and prolonged labor increases with increasing maternal age.

Original languageEnglish (US)
JournalAmerican Journal of Obstetrics and Gynecology
Volume197
Issue number4
DOIs
StatePublished - Oct 2007
Externally publishedYes

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Maternal Age
Nonparametric Statistics
Age Groups
Logistic Models
Second Labor Stage
First Labor Stage
Linear Models
Cohort Studies
Retrospective Studies
Head
Parturition

Keywords

  • length of labor
  • maternal age

ASJC Scopus subject areas

  • Medicine(all)
  • Obstetrics and Gynecology

Cite this

Does length of labor vary by maternal age? / Greenberg, Mara B.; Cheng, Yvonne W.; Sullivan, Margaret; Norton, Mary E.; Hopkins, Linda M.; Caughey, Aaron.

In: American Journal of Obstetrics and Gynecology, Vol. 197, No. 4, 10.2007.

Research output: Contribution to journalArticle

Greenberg, Mara B. ; Cheng, Yvonne W. ; Sullivan, Margaret ; Norton, Mary E. ; Hopkins, Linda M. ; Caughey, Aaron. / Does length of labor vary by maternal age?. In: American Journal of Obstetrics and Gynecology. 2007 ; Vol. 197, No. 4.
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