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Related Experiment Video

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Induction Time to Vaginal Delivery: A Comparison of Obstetric Coverage Models.

Amberly Lao1, Taylor Sommers1, Julia Kim1

  • 1Department of Obstetrics and Gynecology, NYU Langone Health, NYU Langone Hospital, Long Island, NYU Long Island School of Medicine, Mineola, New York, United States.

American Journal of Perinatology
|November 24, 2025
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Summary

Induction of labor (IOL) to vaginal delivery times were similar across hospitalist, faculty, and private practice obstetric coverage models. Differences in NICU admissions and cesarean delivery times suggest variations in care that may benefit from standardized protocols.

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Area of Science:

  • Obstetrics and Gynecology
  • Healthcare Management
  • Patient Outcomes

Background:

  • Induction of labor (IOL) and hospitalist coverage are increasingly common in obstetrics.
  • Hospitalist models are linked to improved maternal outcomes and reduced cesarean rates, but their effect on IOL is not well-understood.

Purpose of the Study:

  • To compare the time from induction of labor to vaginal delivery across three obstetric coverage models: hospitalists, faculty generalists, and private practice generalists.

Main Methods:

  • A retrospective cohort study of 403 singleton, term, vertex patients undergoing IOL.
  • Data were collected from January 1, 2022, to September 30, 2022, at a single institution.
  • Outcomes included induction-to-delivery time, mode of delivery, and complications, analyzed using chi-square, ANOVA, and regression.

Main Results:

  • Median induction-to-delivery times were similar across hospitalists (20.5 hrs), faculty (23.4 hrs), and private generalists (19.7 hrs).
  • No significant difference was found in induction-to-vaginal-delivery time (p=0.17).
  • Private generalists had shorter induction-to-cesarean times; hospitalists had more NICU admissions post-vaginal delivery, mostly unrelated to labor.

Conclusions:

  • Induction-to-vaginal delivery times and complication rates were comparable across obstetric coverage models.
  • Variations in NICU admissions and cesarean delivery times indicate potential areas for care standardization.
  • Implementing evidence-based, standardized induction protocols could optimize outcomes across different obstetric care models.