Original Articles
Antenatal prediction of postpartum urinary and fecal incontinence1,

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Abstract

Objective: To investigate the effect of pregnancy and delivery on continence and to assess whether physical markers of collagen weakness can predict postpartum urinary and fecal incontinence (including incontinence of flatus).

Methods: In a prospective, longitudinal study in a London teaching hospital, 549 nulliparas were interviewed after 34 weeks’ gestation and again 3 months postpartum regarding urinary and fecal symptoms before and during pregnancy and after delivery. Family histories of incontinence, prolapse, and collagen abnormalities were recorded also. Physical examination was done to assess markers of collagen weakness such as striae, hernia, varicose veins, and joint mobility.

Results: The prevalence of urinary incontinence before, during, and after pregnancy was 3.6%, 43.7%, and 14.6%, and rates of fecal incontinence were 0.7%, 6.0%, and 5.5%, respectively. Fecal urgency was more common in women who had spontaneous and instrument-assisted vaginal deliveries (n = 413) compared with cesareans (n = 131) (7.3% versus 3.1%; P = .046). Postnatal urinary or fecal dysfunction was not related to antenatal body mass index, smoking, race, striae, varicose veins, hemorrhoids, or family history of incontinence. Higher joint-mobility scores were associated with incontinence of flatus (P = .021) but not with other urinary or fecal symptoms.

Conclusion: Although collagen weakness was previously implicated in the pathogenesis of incontinence, physical markers in this study could not predict postpartum urinary and fecal incontinence. Either those markers were not representative of collagen weakness, or a larger study with longer follow-up is necessary.

Section snippets

Methods

We interviewed consecutive women who were nulliparous, English-speaking, and had singleton pregnancies in the third trimester. A structured questionnaire was completed by each woman for this pilot study, and each signed an informed consent. Exclusion criteria included active urinary tract infection, history of urinary tract abnormality, recurrent urinary tract infection, history of anorectal surgery or trauma, and active anorectal infection. The women were interviewed during their routine

Results

Five hundred forty-nine women were interviewed antenatally and all completed postpartum follow-up. The ethnic distribution was 382 white (69.6%), 82 black (14.9%), 84 Asian (15.3%), and one Southeast Asian (0.2%), which was similar to that of the institution. The obstetric and neonatal data of the study population were compared with those of the overall nulliparous, registered population delivered over the same period, and there were no statistically significant differences (Table 1). The mean

Discussion

Our study confirmed previous reports of a high prevalence of urinary and fecal incontinence related to pregnancy and childbirth.12, 13 None of these women complained voluntarily or sought medical help, which is not surprising because these symptoms are embarrassing and known to be underreported.14 Although data regarding prepregnancy symptoms were retrospective, the low incidence of incontinence agrees with previous data linking parity to incontinence.12, 15, 16 We chose not to do objective

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    Supported by the South Thames Project Grant Scheme.

    1

    The authors thank Professor Martin Bland for advice regarding statistical analysis of the data.

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