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The purpose of this study was to investigate the association of serum folate with NAFLD and advanced liver fibrosis (AHF). We conducted a cross-sectional study with 5417 participants using 2011\u20132018 NHANES data. Multiple logistic regression analysis and propensity score matching analysis were used to investigate the association of serum folate with NAFLD and AHF. In the completely adjusted model, participants in the high serum folate group had a 27% (OR 0.73, 95% CI 0.62, 0.87, p\u2009=\u20090.0003) and 53% (OR 0.47, 95% CI 0.35, 0.63, p\u2009&lt;\u20090.0001) lower odds of suffering from NAFLD and AHF, respectively, compared to the low serum folate group. The similar results in propensity score matching further validated the above association. Stratified analysis showed that the negative correlation of serum folate with NAFLD and AHF demonstrated a broad consistency across populations. The results of this study indicate that higher serum folate level was associated with lower odds of NAFLD and AHF among US adults. Further prospective studies are necessary due to the limitations of cross-sectional studies.<\/jats:p>","DOI":"10.1038\/s41598-023-39641-1","type":"journal-article","created":{"date-parts":[[2023,8,9]],"date-time":"2023-08-09T14:01:58Z","timestamp":1691589718000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Serum folate associated\u00a0with nonalcoholic fatty liver disease and advanced hepatic fibrosis"],"prefix":"10.1038","volume":"13","author":[{"given":"Hao-Kai","family":"Chen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Luo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiu-Juan","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wan-Zhe","family":"Liao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yu-Qi","family":"Hu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xu-Guang","family":"Guo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2023,8,9]]},"reference":[{"issue":"7","key":"39641_CR1","doi-asserted-by":"publisher","first-page":"4478","DOI":"10.3390\/curroncol29070356","volume":"29","author":"A Mitsala","year":"2022","unstructured":"Mitsala, A., Tsalikidis, C., Romanidis, K. & Pitiakoudis, M. 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