Authors: B Zendejas R HernandezIrizarry T Ramirez C M Lohse B R Grossardt D R Farley
Publish Date: 2013/11/14
Volume: 18, Issue: 2, Pages: 283-288
Abstract
The relationship between body mass index BMI and the risk of inguinal hernia development is unclear To explore the relationship we determined whether the incidence of inguinal hernia repairs IHR varied across patients with different BMI categoriesA populationbased incidence study was undertaken We reviewed all IHR performed on adult residents of Olmsted County MN from 2004 to 2008 Cases were ascertained through the Rochester Epidemiology Project a recordslinkage system with more than 97 population coverageDuring the study period a total of 1168 IHR were performed on 879 men and 107 women The median BMI of the cohort was 267 kg/m2 range 149–581 interquartile range 239–289 Incidence rates varied significantly as a function of BMI p 0001 Rates were highest among men who were either normal weight or overweight 4198 and 4211 per 100000 person–years for BMI 25 and BMI 25–299 respectively and lowest for obese and morbidly obese men 2735 and 994 per 100000 person–years for BMI 30–349 and BMI ≥ 35 respectively Findings were similar across all age categories and in patients who had an IHR that was initial or recurrent direct or indirect and unilateral or bilateralThe incidence of IHR decreased as BMI increased Obese and morbidly obese patients had a lower incidence of IHR than those who were normal weight or overweight The causal mechanisms leading to such a relationship are unclear and warrant further study
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