Author(s): Hannestad YS, Lie RT, Rortveit G, Hunskaar S
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Abstract OBJECTIVE: To determine whether there is an increased risk of urinary incontinence in daughters and sisters of incontinent women. DESIGN: Population based cross sectional study. SETTING: EPINCONT (the epidemiology of incontinence in the county of Nord-Trøndelag study), a substudy of HUNT 2 (the Norwegian Nord-Trøndelag health survey 2), 1995-7. PARTICIPANTS: 6021 mothers, 7629 daughters, 332 granddaughters, and 2104 older sisters of 2426 sisters. MAIN OUTCOME MEASURES: Adjusted relative risks for urinary incontinence. RESULTS: The daughters of mothers with urinary incontinence had an increased risk for urinary incontinence (1.3, 95\% confidence interval 1.2 to 1.4; absolute risk 23.3\%), stress incontinence (1.5, 1.3 to 1.8; 14.6\%), mixed incontinence (1.6, 1.2 to 2.0; 8.3\%), and urge incontinence (1.8, 0.8 to 3.9; 2.6\%). If mothers had severe symptoms then their daughters were likely to have such symptoms (1.9, 1.3 to 3.0; 4.0\%). The younger sisters of female siblings with urinary incontinence, stress incontinence, or mixed incontinence had increased relative risks of, respectively, 1.6 (1.3 to 1.9; absolute risk 29.6\%), 1.8 (1.3 to 2.3; 18.3\%), and 1.7 (1.1 to 2.8; 10.8\%). CONCLUSION: Women are more likely to develop urinary incontinence if their mother or older sisters are incontinent.
This article was published in BMJ
and referenced in Journal of Socialomics