Composite Dietary Antioxidant Index Is Negatively Associated with Hyperuricemia in US Adults: An Analysis of NHANES 2007–2018

Figure 1

Flowchart for inclusion and exclusion of participants. A total of 59,842 participants in the NHANES during 2007–2018 were included, excluding those younger than 20, those with missing uric acid level data, those with missing CDAI score data, and those with missing covariate data; 8761 people were finally included in the study.