Association between DCP levels and kidney stone prevalence in US female adults based on NHANES data

Sci Rep. 2024 Mar 18;14(1):6457. doi: 10.1038/s41598-024-56832-6.

Abstract

Our study aimed to evaluate the correlation between levels of 2,4-DCP(2,4-Dichlorophenol) and 2,5-DCP(2,5-Dichlorophenol) and the prevalence of kidney stones in US female adults. Participants were chosen from the National Health and Nutrition Examination Survey database, spanning the years 2007-2016. Dose-response curves were analyzed using logistic regression, subgroup analyses, and other statistical methods to evaluate the relationship between 2,4-DCP and 2,5-DCP levels and the prevalence of kidney stones. The final study included 3220 participants aged over 20 years, with 252 females reporting a history of kidney stones. After accounting for all interfering variables, we found that every 0.1 ug/ml increase in 2.4-DCP correlated with a 1% rise in kidney stone prevalence (OR = 1.01, 95% CI 1.00, 1.01), whereas the same increase in 2.5-DCP was linked to a 27% growth in prevalence (OR = 1.27, 95% CI 1.01, 1.61). Sensitivity analysis was performed by triangulating 2,4-DCP and 2,5-DCP levels. The dose-response curves demonstrated a linear positive relationship between 2,4-DCP and 2,5-DCP levels and the risk of stone development. Our findings indicate a positive correlation between 2,4-DCP and 2,5-DCP levels and the prevalence of kidney stones in US female adults. This association is of clinical significance; however, a direct causal relationship cannot be definitively established.

Keywords: 2,4-DCP and 2,5-DCP; Cross-sectional study; Environmental exposure; Kidney stones.

MeSH terms

  • Adult
  • Chlorophenols*
  • Female
  • Humans
  • Kidney Calculi* / epidemiology
  • Kidney Calculi* / etiology
  • Nutrition Surveys
  • Phenols
  • Prevalence

Substances

  • Chlorophenols
  • Phenols