Differences in Urinary Stone Composition according to Body Habitus

• DOI: 10.4111/kju.2011.52.9.622
• Publication Date: 2011-10-14T10:33:40Z
• Authors: Ji Yun Jeong; Seung Whan Doo; Won Jae Yang; Kwang Woo Lee; Jun Mo Kim
• Keywords: Struvite

Purpose: We analyzed differences in urinary stone composition according to body mass index (BMI).Materials and Methods: Between January 2007 December 2010, 505 ureteral or renal stones were collected from patients who underwent surgical intervention.Data on patient age, gender, BMI, pH, collected.Results: The patients' mean age was 49.2 years (range, 20 83 years).Of the patients, 196 (38.7%) had calcium oxalate (CO) stones, 172 (33.9%) mixed phosphate (COP) 72 (14.2%) (CP) 50 (9.8%)had uric acid (UA) 15 (2.9%) struvite stones.We excluded statistical analysis because of small number patients; a total 490 included this study.In multinomial logistic regression analysis, obesity found be associated with UA compared COP (odds ratio [OR] 3.488; 95% confidence interval [CI] 1.732-7.025;p＜0.001) CP (OR 2.765; p=0.015).Similar results observed for CO 2.682; CI 1.727-4.164;p＜0.001) 2.126; 1.176-3.843;p＜0.013).Conclusions: Obesity occurrence stones.