Polycyclic Aromatic Hydrocarbons and the Risk of Kidney Stones in US Adults: An Exposure-Response Analysis of NHANES 2007-2012

Int J Gen Med. 2021 Jun 21:14:2665-2676. doi: 10.2147/IJGM.S319779. eCollection 2021.

Abstract

Background: Polycyclic aromatic hydrocarbons (PAHs) exposure may cause various diseases. However, the association between PAHs exposure and kidney stones remains unclear. The purpose of this study was to examine the relationship between PAHs and the risk of kidney stones in the US population.

Methods: The study included a total of 30,442 individuals (≥20 years) from the 2007-2012 National Health and Nutrition Examination Survey (NHANES). Nine urinary PAHs were included in this study. Logistic regression and dose-response curves were used to evaluate the association between PAHs and the risk of kidney stones.

Results: We selected 4385 participants. The dose-response curves showed a significant positive association between total PAHs, 2-hydroxynaphthalene, 1-hydroxyphenanthrene, 2-hydroxyphenanthrene, 9-hydroxyfluorene and the risk of kidney stones after adjusting for confounding factors. Compared with the low group, an increased risk of kidney stones was observed in the high group of total PAHs [OR (95% CI), 1.32 (1.06-1.64), P=0.013], 2-hydroxynaphthalene [OR (95% CI), 1.37 (1.10-1.71), P=0.005], 1-hydroxyphenanthrene [OR (95% CI), 1.24 (1.00-1.54), P=0.046] and 9-hydroxyfluorene [OR (95% CI), 1.36 (1.09-1.70), P=0.007].

Conclusion: High levels of PAHs were positively associated with the risk of kidney stones in the US population.

Keywords: NHANES; cross-sectional survey; kidney stones; polycyclic aromatic hydrocarbons.

Grants and funding

This work was supported by grants from Jiangsu Provincial Medical Youth Talent (QRNC2016820), National Natural Science Foundation of China (NO. 81670632 and 81900618), and the Scientific Research Foundation of Graduate School of Southeast University (YBPY2173).