Association between the oxidative balance score and kidney stones in adults
Qiongqiu Chen1, Wenshuo Bao1, Xianghui Kong1
1Department of Urology, Wenzhou People's Hospital, Wenzhou, 325000, P.R. China.
Objectives:
This study was to investigate the correlation between oxidative balance score (OBS) and the prevalence of kidney stones in the general adult population.
Materials And Methods:
We conducted an analysis using data from the 2007-2018 National Health and Nutrition Examination Survey (NHANES) project, including 17,988 participants. The OBS was computed based on previous research, combining 16 dietary factors and 4 lifestyle factors. Multiple logistic regressions and restricted cubic spline (RCS) regressions were utilized to explore the associations between OBS and kidney stone prevalence.
Results:
Our analysis included 1,622 adults with kidney stones and 16,366 adults without kidney stones. The average age of participants was 46.86 ± 0.27 years, with 50.72% being male. The median OBS was 22.00 (17.00, 27.00). After adjusting for all covariates, each one-unit increase in OBS was associated with a 3% decrease in kidney stone prevalence (odds ratio [OR] = 0.97 [0.96-0.98], P < 0.001). Moreover, compared to the first quartile, the fourth quartile of OBS (OR = 0.65 [0.50-0.84], P = 0.001) exhibited a negative association with kidney stone prevalence after adjusting for multiple variables. Furthermore, we observed a non-linear negative relationship between OBS and kidney stone prevalence, with inflection points at 18.2 (P for nonlinearity = 0.048). Stratified analysis did not identify any variables significantly affecting the results.
Conclusion:
Our findings indicate that a higher OBS is associated with a decreased prevalence of kidney stones in the general adult population.
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