Abstract
BackgroundThe occurrence of chronic obstructive pulmonary disease (COPD) is associated with oxidative stress. Oxidation Balance Score (OBS) can evaluate the oxidation and antioxidant status of the body. However, we found no studies that examined the association between the two. ObjectiveTo assess the association between OBS and COPD prevalence, and to explore dietary and lifestyle patterns aimed at preventing and delay COPD in adults. MethodWe included 13,909 participants using data from the NHANES. Weighted logistic regression model and weighted restricted cubic spline curve were used to explore the relationship between OBS and COPD. Subgroup analysis and sensitivity analysis were used to determine the stability of results. Mediation analysis was employed to assess the effect of inflammatory factors. ResultIn logistic regression model, compared with the lowest quartile of OBS, the highest quartile of OBS, diet OBS, lifestyle OBS and COPD had odd ratios OR(95%CI)=0.67 (0.51, 0.89), OR (95% CI) = 0.71 (0.55, 0.93), and OR (95% CI) = 0.39 (0.26, 0.58) respectively. The restricted cubic spline curve reveals that OBS and dietary OBS exhibit an L-shaped curve in relation to COPD prevalence, while lifestyle OBS shows a negative correlation curve with COPD prevalence. Subgroup analysis and sensitivity analysis proved the robustness of the association. Mediation analysis demonstrated that inflammatory factors mediate the association of OBS on the prevalence of COPD. ConclusionThe increase of OBS, dietary OBS, and lifestyle OBS was associated with a decrease in the prevalence of COPD, but excessive OBS and dietary OBS were associated with an inapparent decrease or even increased risk of COPD.
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