The prevalence of urinary incontinence was investigated by determining the number of incontinent patients under the care of various health and social service agencies in two London boroughs and by a postal survey of the 22 430 people aged 5 years and over on the practice lists of 12 general practitioners in different parts of the country. The prevalence of incontinence known to the health and social service agencies was 0.2% in women and 0.1% in men aged 15-64 and 2.5% in women and 1.3% in men aged 65 and over. The postal survey, to which 89% of the people whose correct address was known replied, showed a prevalence of urinary incontinence of 8.5% in women and 1.6% in men aged 15-64 and 11.6% in women and 6.9% in men aged 65 and over. Nulliparous women had a lower prevalence than those who had had one, two, or three babies, but within the parity range of one to three there were no differences in prevalence. The prevalence was appreciably increased in women who had had four or more babies. Incontinence was moderate or severe in a fifth of those who reported it in the postal survey, of whom less than a third were receiving health or social services for the condition. Incontinence is a common symptom, and many unrecognised cases appear to exist. There may be considerable scope for improving its management.

https://www.bmj.com/content/bmj/281/6250/1243.full.pdf

Prevalence of urinary incontinence.

This paper examines or current state of knowledge of the epidemiology of urinary incontinence. The population studied was community-dwelling non-institutionalized persons. The review includes discussion of the prevalence, incidence, natural history and presence of racial and ethnic differences in the epidemiology of urinary incontinence. We also review correlates and potential risk factors that have been revealed in epidemiological studies. Differences between epidemiological and clinical approaches to a health problem, help-seeking behavior and methodological issues for research are also discussed. We have reviewed a large number of completed studies in the field of urinary incontinence, and have emphasized high-quality and population-based studies. We also wished to present studies from a variety of countries. Because of the abundance of studies, only a small fraction can be presented here. Other studies may have equal standards and useful information, but lack of space precludes their inclusion.

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Epidemiology and natural history of urinary incontinence.

Prevalence, Incidence and Correlates of Urinary Incontinence in Healthy, Middle-Aged Women

Definition of overactive bladder and epidemiology of urinary incontinence

To determine the prevalence of urinary incontinence and other urinary symptoms a questionnaire was sent to all women aged 25 and over and to women under 21 taking oral contraceptives registered with a rural practice (n=937); the questionnaire was completed by 833 women (89%). The overall prevalence of urinary incontinence was 41% (343/833); rates were lower in nulliparous and postmenopausal women (30/181 (17%) and 120/344 (35%) respectively) than parous and premenopausal women (313/652 (48%) and 225/479 (47%) respectively). Incontinence was significantly associated with perineal suturing after childbirth, being present in 201 of 376 (53%) women with sutures compared with 113 of 270 (42%) without. Of the 166 women with a history of minor gynaecological surgery, 100 had symptoms of incontinence, compared with 263 of the 657 (37%) without such a history. Incontinence was not related to type of delivery, and postnatal exercises for the pelvic floor were not beneficial. Inappropriate leakage of urine is perceived by many women as common and therefore not serious; thus it is often not reported to the doctor. Nevertheless, the 6% of women who always require protection against leakage could be helped by treatment.

https://www.bmj.com/content/bmj/296/6632/1300.full.pdf

Alma Nemir

Papers

Stress incontinence in young nulliparous women; a statistical study.