Prevalence of hypertensive disorders of pregnancy at or beyond 39 weeks gestational age and associated maternal complications

ABSTRACT

Objective

Estimate the prevalence of hypertensive disorder of pregnancy (HDP) at term, define population characteristics, and calculate adverse maternal outcomes.

Methods

Retrospective study.

Results

We included 4,702,468 pregnancies. HDP increased linearly from 4.5% (2014) to 6.0% (2018). HDP was more frequent among black (PR 1.19), obese (PR 2.31 to 3.70), with gestational (PR 1.87) or pregestational diabetes (PR 2.16). Increased transfusion (PR 2.52), intensive care unit admission (PR 3.38), and unplanned hysterectomy (PR 1.78) with HDP. 

Conclusion

Our study quantifies the increased risks for maternal and neonatal complications related to the development of HDP at or beyond 39 weeks among nulliparous women.

KEYWORDS:

• maternal morbidity
• preeclampsia
• gestational hypertension
• term pregnancy
• prevalence ratio

Acknowledgments

This project has been carried out with support from the Department of Obstetrics and Gynecology. We would like to acknowledge Erin Zielinski and Lauren Asfaw for their administrative support in carrying out and completing this project and manuscript.

Disclosure statement

No potential conflict of interest was reported by the authors.

Authorship

All authors participated in the preparation of this manuscript in the following ways: conception and/or design of the work that led to the submission, data acquisition, and result interpretation. All have helped in drafting and reviewing the manuscript and have approved the final version. Finally, all have agreed to be accountable for all aspects of the work in ensuring that the questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

Data availability statement

This is publicly available data that can be accessed at: http://www.cdc.gov/nchs/data_access/Vitalstatsonline.htm.

Supplementary material

Supplemental data for this article can be accessed online at https://doi.org/10.1080/10641955.2023.2217452.

Additional information

Funding

The authors have no source of external or internal funding to declare.