Men with large waists urinate more frequently than their slimmer counterparts, according to research in the August issue of the urology journal BJUI.
Researchers from Weill Medical College, Cornell University, New York, found that men with waists measuring 100cm plus reported up to three times more urinary problems than men with waists of 90cm or less.
They also found that larger waist measurements were associated with a greater prevalence of high blood pressure, cardiovascular disease, type 2 diabetes and erection and ejaculation problems.
"The global epidemic of obesity and diabetes had led to a striking increase in the number of people with metabolic syndrome, which includes central obesity, glucose intolerance and high cholesterol and blood pressure levels" says co-author Dr Steven A Kaplan.
"Together, these have been traditionally associated with an increased risk of heart disease and sexual problems. However, emerging data now suggest that metabolic syndrome may have a hereto unrecognised effect on how often men urinate. Our study sought to examine the relationship between men's waist measurements and how often they urinate."
The researchers studied 409 consecutive men aged from 40 to 91 with moderate or severe lower urinary tract symptoms (LUTS) who presented to the Institute for Bladder and Prostate Health at the Weill Medical College of Cornell University over a two-and-a-half year period. They had no previous treatment and a LUTS, International Prostate Symptom Score of eight or more.
Key findings included:
The researchers also analysed the relationship between waist size and the odds risk of greater problems from various urological, sexual, metabolic and cardiovascular problems. This showed that:
"Our study shows that men with larger waist circumferences urinate more over a 24-hour period, and at night, than men with smaller waists and confirms higher levels of problems traditionally associated with metabolic syndrome" concludes Dr Kaplan. "Waist measurement may therefore represent an easy diagnostic tool when it comes to the likelihood of male urinary problems."
Notes to editors
Central obesity as measured by waist circumference is predictive of severity of lower urinary tract symptoms. Lee et al. BJUI. 110, pp 540-545. (August 2012). doi:10.1111/j.1464-410X.2011.10819.x
Established in 1929, BJUI is edited by Professor John Fitzpatrick from Mater Misericordiae University Hospital and University College Dublin, Ireland. It provides its international readership with invaluable practical information on all aspects of urology, including original and investigative articles and illustrated surgery. http://wileyonlinelibrary.com/journal/BJU
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