Association between blood ethylene oxide levels and the prevalence of periodontitis: evidence from NHANES 2013–2014

The study aimed to establish a link between blood ethylene oxide (EO) levels and periodontitis, given the growing concern about EO’s detrimental health effects. The study included 1006 adults from the 2013–2014 National Health and Nutrition Examination Survey (NHANES) dataset. We assessed periodontitis prevalence across groups, used weighted binary logistic regression and restricted cubic spline fitting for HbEO-periodontitis association, and employed Receiver Operating Characteristic (ROC) curves for prediction. In the periodontitis group, HbEO levels were significantly higher (40.57 vs. 28.87 pmol/g Hb, P < 0.001). The highest HbEO quartile showed increased periodontitis risk (OR = 2.88, 95