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J Pediatr Urol. 2006 Aug;2(4):364-7. doi: 10.1016/j.jpurol.2006.05.002. Epub 2006 Jun 21.

Association of elimination dysfunction and body mass index.

Journal of pediatric urology

Erim Erdem, Alpha Lin, Barry A Kogan, Paul J Feustel

Affiliations

  1. Albany Medical College, Albany, NY, USA. [email protected]

PMID: 18947637 DOI: 10.1016/j.jpurol.2006.05.002

Abstract

PURPOSE: The reported prevalence of mild and severe obesity among US children is 30% and 15%, respectively. Childhood obesity likely relates to alterations in diet that also may cause constipation. We investigated the relationship between obesity and various forms of elimination dysfunction.

MATERIALS AND METHODS: The data of 251 patients who were diagnosed as having elimination dysfunction were analyzed retrospectively. Each patient's age, weight, height and diagnosis were evaluated and body mass index (BMI) was calculated. The percentile BMI was then analyzed based on diagnosis. BMI percentile> or =85% was defined as mild obesity and BMI percentile> or =95% was defined as severe obesity. The patients were divided into four groups based on diagnosis: constipation (n=70), enuresis+constipation (n=21), daytime incontinence (n=96) and nocturnal enuresis (n=64).

RESULTS: The mean age of the patients was 9 years (range: 4-18 years). In the group with enuresis and constipation, 8/21 (38%) were mildly and 5/21 (24%) severely obese. Of patients with daytime incontinence, 36/70 (51%) were mildly and 22 (31%) severely obese, and of those with nocturnal enuresis alone, 35 (55%) were mildly and 20/64 (31%) severely obese.

CONCLUSIONS: Of children with voiding dysfunction, 62-86% are also obese. This is almost double the rate in the normal population. These conditions may have a common etiology.

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