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  • Title: The risk of lower urinary tract symptoms five years after the first delivery.
    Author: Viktrup L.
    Journal: Neurourol Urodyn; 2002; 21(1):2-29. PubMed ID: 11835420.
    Abstract:
    AIM OF THE STUDY: To estimate the prevalence and 5-year incidence of lower urinary tract symptoms (LUTS) after the first delivery and to evaluate the impact of pregnancy per se and delivery per se on long-lasting symptoms. MATERIALS AND METHODS: A longitudinal cohort study of 305 primiparae questioned a few days, 3 months, and 5 years after their delivery. The questionnaire used was tested and validated, and the questions were formulated according to the definitions of the International Continence Society (ICS). Maternal, obstetric, and neonatal data concerning every delivery and objective data concerning surgeries during the observation period were obtained from the records. From the sample of 278 women (91%) who responded 5 years after their first delivery, three subpopulations were defined: 1) women without initial LUTS before or during the first pregnancy or during the puerperal period, 2) women with onset of LUTS during the first pregnancy, and 3) women with onset of LUTS during the first puerperium. The risk of LUTS 5 years after the first delivery was examined using bivariate analyses. The obstetric variables in the bivariate tests with a significant association with long-lasting urinary incontinence were entered into a multivariate logistic regression. RESULTS: The prevalence of stress and urge incontinence 5 years after first delivery was 30% and 15%, respectively, whereas the 5-year incidence was 19% and 11%, respectively. The prevalence of urgency, diurnal frequency, and nocturia 5 years after the first delivery was 18%, 24%, and 2%, respectively, whereas the 5-year incidence was 15%, 20%, and 0.5%, respectively. The prevalence of all LUTS except nocturia increased significantly during the 5 years of observation. The risk of long-lasting stress and urge incontinence was related to the onset and duration of the symptom after the first pregnancy and delivery in a dose-response-like manner. Vacuum extraction at the first delivery was used significantly more often in the group of women with onset of stress incontinence during the first puerperium, whereas an episiotomy at the first delivery was performed significantly more often in the group of women with onset of stress incontinence in the 5 years of observation. The prevalence of urgency and diurnal frequency 5 years after the first delivery was not increased in women with symptom onset during the first pregnancy or puerperium compared with those without such symptoms. The frequency of nocturia 5 years after the first delivery was too low for statistical analysis. CONCLUSION: The first pregnancy and delivery may result in stress and urge incontinence 5 years later. Women with stress and urge incontinence 3 months after the first delivery have a very high risk of long-lasting symptoms. An episiotomy or a vacuum extraction at the first delivery seems to increase the risk. Subsequent childbearing or surgery seems without significant contribution. Long-lasting urgency, diurnal frequency, or nocturia cannot be predicted from onset during the first pregnancy or puerperium.
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