Abstract
Introduction and hypothesis
Child delivery mode may be associated with pelvic floor disorders. We explored the association between different delivery modes and later development of stress urinary incontinence (SUI) and pelvic organ prolapse (POP) in Taiwanese women.
Methods
This was a retrospective population-based cohort study. Women who delivered babies between January 1, 2000, and December 31, 2018, were selected for this study. The study used Taiwan’s National Health Insurance (NHI) Research Database. After propensity score matching, 51,587 women who underwent cesarean section (C/S) and 51,587 women who underwent vaginal delivery (VD) were recruited. Primary outcomes were the presence of SUI and POP after delivery.
Results
The incidence of SUI (1.6/1000 person-years) and POP (1.5/1000 person-years) was higher in the VD group than in the C/S group (0.8 and 0.6 in 1000 person-years). VD was associated with an increased risk of SUI [hazard ratio (HR): 2.79, 95% confidence interval (CI): 2.45–3.17] and POP (HR: 1.96, 95% CI: 1.75–2.19) compared to C/S. We also found that age (HR: 1.06, 95% CI: 1.05–1.08 in SUI, HR: 1.08, 95% CI: 1.07–1.09 in POP) and Charlson Comorbidity Index (CCI) (HR: 1.28, 95% CI: 1.12–1.46 in SUI, HR: 1.27, 95% CI: 1.13–1.43 in POP) were associated with an increased risk of SUI and POP. The cumulative incidence of SUI and POP was higher in the VD group than in the C/S group (log-rank test, P < 0.05).
Conclusions
The current study was the largest retrospective cohort study regarding the influence of delivery mode on SUI and POP so far. VD was found to be associated with an increased risk of SUI and POP compared with C/S. Postpartum care for pelvic physical therapy should be provided particularly to women undergoing VD.
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Data Availability
The dataset is not available for public access but is available from the Taiwan National Health Insurance Department upon reasonable request from the corresponding author.
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Acknowledgements
The authors would also like to thank the Tzu Chi University Research Center for Big Data Teaching, Research, and Statistical Consultation for providing statistical consultation assistance.
Funding
This study was supported by Hualien Tzu Chi Hospital (Industry-University Cooperation).
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Conceptualization and methodology, D.C.D.; formal analysis, investigation, and data curation, G.H.D. Writing – Original Draft Preparation, G.H.D. W.L.T., T.C.H., and D.C.D.; Writing – Review and Editing, W.L.T., G.H.D., and D.C.D. Supervision, Project Administration, and Funding Acquisition, D.C.D.
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Informed Consent
The requirement for informed consent was waived due to the low risk of patient safety and was approved by the committee.
Institutional Review Board
The Research Ethics Committee at Hualien Tzu Chi Hospital approved the use of NHRI-provided data for this study (institutional review board permit number: IRB111-043-C).
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Tsui, W.L., Deng, GH., Hsieh, TC. et al. Association between vaginal or cesarean delivery and later development of stress urinary incontinence or pelvic organ prolapse: A retrospective population-based cohort study. Int Urogynecol J 34, 2041–2047 (2023). https://doi.org/10.1007/s00192-023-05504-6
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DOI: https://doi.org/10.1007/s00192-023-05504-6