Impact of body mass index on size and composition of urinary stones: a systematic review and meta-analysis

ABSTRACT Background Several studies have explored the impact of BMI on size and composition of urinary stones. Because there were controversies, a meta-analysis was necessary to be carried out to provide some evidence of the relationship of BMI and urolithiasis. Materials and Methods PubMed, Med...

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Main Authors: Daoqi Wang, Jiahong Tan, Erkang Geng, Chuanping Wan, Jinming Xu, Bin Yang, Yuan Zhou, Guiming Zhou, Zhenni Ye, Jiongming Li, Jianhe Liu
Format: Article
Language:English
Published: Sociedade Brasileira de Urologia 2023-06-01
Series:International Brazilian Journal of Urology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382023000300281&lng=en&tlng=en
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author Daoqi Wang
Jiahong Tan
Erkang Geng
Chuanping Wan
Jinming Xu
Bin Yang
Yuan Zhou
Guiming Zhou
Zhenni Ye
Jiongming Li
Jianhe Liu
author_facet Daoqi Wang
Jiahong Tan
Erkang Geng
Chuanping Wan
Jinming Xu
Bin Yang
Yuan Zhou
Guiming Zhou
Zhenni Ye
Jiongming Li
Jianhe Liu
author_sort Daoqi Wang
collection DOAJ
description ABSTRACT Background Several studies have explored the impact of BMI on size and composition of urinary stones. Because there were controversies, a meta-analysis was necessary to be carried out to provide some evidence of the relationship of BMI and urolithiasis. Materials and Methods PubMed, Medline, Embase, Web of Science databases, and the Cochrane Library were searched up to August 12th 2022 for eligible studies. The urolithiasis patients were summarized into two groups: BMI < 25 and ≥ 25 kg/m2. Summary weighted mean difference (WMD), relative risk (RR) and 95% confidence intervals (CI) were calculated through random effects models in RevMan 5.4 software. Results A total of fifteen studies involving 13,233 patients were enrolled in this meta-analysis. There was no significant correlation of BMI and size of urinary stone (WMD -0.13mm, 95% CI [-0.98, 0.73], p = 0.77). Overweight and obesity increased the risk of uric acid stones in both genders and in different regions (RR=0.87, [95% CI] = 0.83, 0.91, p<0.00001). There was a higher risk of calcium oxalate stones formation in overweight and obesity group in total patients (RR=0.95, [95% CI] = 0.91, 0.98, p = 0.006). The relationship of BMI and calcium phosphate was not observed in this meta-analysis (RR=1.12, [95% CI] = 0.98, 1.26, p = 0.09). Sensitivity analysis was performed and indicated similar results. Conclusions The current evidence suggests a positive association between BMI and uric acid and calcium oxalate stones. It would be of great guiding significance to consider losing weight when treating and preventing urinary stones.
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spelling doaj.art-a0d216f3bea44a188a73871af1b630222023-06-06T07:35:06ZengSociedade Brasileira de UrologiaInternational Brazilian Journal of Urology1677-61192023-06-0149328129810.1590/s1677-5538.ibju.2022.0587Impact of body mass index on size and composition of urinary stones: a systematic review and meta-analysisDaoqi Wanghttps://orcid.org/0000-0002-6098-9477Jiahong TanErkang GengChuanping WanJinming XuBin YangYuan ZhouGuiming ZhouZhenni YeJiongming LiJianhe LiuABSTRACT Background Several studies have explored the impact of BMI on size and composition of urinary stones. Because there were controversies, a meta-analysis was necessary to be carried out to provide some evidence of the relationship of BMI and urolithiasis. Materials and Methods PubMed, Medline, Embase, Web of Science databases, and the Cochrane Library were searched up to August 12th 2022 for eligible studies. The urolithiasis patients were summarized into two groups: BMI < 25 and ≥ 25 kg/m2. Summary weighted mean difference (WMD), relative risk (RR) and 95% confidence intervals (CI) were calculated through random effects models in RevMan 5.4 software. Results A total of fifteen studies involving 13,233 patients were enrolled in this meta-analysis. There was no significant correlation of BMI and size of urinary stone (WMD -0.13mm, 95% CI [-0.98, 0.73], p = 0.77). Overweight and obesity increased the risk of uric acid stones in both genders and in different regions (RR=0.87, [95% CI] = 0.83, 0.91, p<0.00001). There was a higher risk of calcium oxalate stones formation in overweight and obesity group in total patients (RR=0.95, [95% CI] = 0.91, 0.98, p = 0.006). The relationship of BMI and calcium phosphate was not observed in this meta-analysis (RR=1.12, [95% CI] = 0.98, 1.26, p = 0.09). Sensitivity analysis was performed and indicated similar results. Conclusions The current evidence suggests a positive association between BMI and uric acid and calcium oxalate stones. It would be of great guiding significance to consider losing weight when treating and preventing urinary stones.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382023000300281&lng=en&tlng=enUrinary CalculiBody Mass IndexObesity
spellingShingle Daoqi Wang
Jiahong Tan
Erkang Geng
Chuanping Wan
Jinming Xu
Bin Yang
Yuan Zhou
Guiming Zhou
Zhenni Ye
Jiongming Li
Jianhe Liu
Impact of body mass index on size and composition of urinary stones: a systematic review and meta-analysis
International Brazilian Journal of Urology
Urinary Calculi
Body Mass Index
Obesity
title Impact of body mass index on size and composition of urinary stones: a systematic review and meta-analysis
title_full Impact of body mass index on size and composition of urinary stones: a systematic review and meta-analysis
title_fullStr Impact of body mass index on size and composition of urinary stones: a systematic review and meta-analysis
title_full_unstemmed Impact of body mass index on size and composition of urinary stones: a systematic review and meta-analysis
title_short Impact of body mass index on size and composition of urinary stones: a systematic review and meta-analysis
title_sort impact of body mass index on size and composition of urinary stones a systematic review and meta analysis
topic Urinary Calculi
Body Mass Index
Obesity
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382023000300281&lng=en&tlng=en
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