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Obstetric risk factors for stress urinary incontinence: a population-based study
J Persson1, P Wolner-Hanssen, H Rydhstroem
1Department of Obstetrics and Gynecology, University Hospital, Lund, Sweden. jan.persson@gyn.lu.se
Obstetrics and Gynecology
|August 29, 2000
Summary
Vaginal delivery, especially the first, increases the risk of stress urinary incontinence surgery. However, maternal factors and delivery interventions modify this risk, with no link to pregnancy itself.
Area of Science:
- Obstetrics and Gynecology
- Urogynecology
Background:
- Stress urinary incontinence (SUI) is a common condition affecting women.
- Identifying obstetric and maternal risk factors is crucial for prevention and management.
Purpose of the Study:
- To evaluate obstetric and maternal risk factors associated with stress urinary incontinence surgery.
Main Methods:
- Linked three Swedish national registries (Hospital Discharge, Medical Birth, Fertility) using unique personal identification numbers.
- Identified women who underwent SUI surgery between 1987-1996.
- Used Mantel-Haenszel and test-based methods to determine odds ratios (ORs) and 95% confidence intervals (CIs).
Main Results:
- Positive associations found between SUI surgery and diabetes mellitus, body mass index (BMI), age at first delivery, parity, birth weight, and epidural analgesia.
- Negative associations found between SUI surgery and cesarean delivery, forceps/vacuum extraction, and episiotomy.
- No association found with age at last delivery, smoking, education, multiple birth, large perineal tear, or breech presentation.
Conclusions:
- Vaginal delivery, particularly the first, is strongly linked to subsequent SUI surgery.
- Maternal conditions and delivery interventions significantly modify the association between delivery mode and SUI surgery.
- Pregnancy itself was not found to be associated with SUI surgery.
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