{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,25]],"date-time":"2026-07-25T05:49:00Z","timestamp":1784958540097,"version":"3.55.0"},"reference-count":50,"publisher":"Public Library of Science (PLoS)","issue":"6","license":[{"start":{"date-parts":[[2024,6,6]],"date-time":"2024-06-06T00:00:00Z","timestamp":1717632000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:sec id=\"sec001\">\n<jats:title>Objective<\/jats:title>\n<jats:p>This study aims to examine the association between the Weight-adjusted Waist Circumference Index (WWI) and the prevalence of periodontitis, providing novel evidence on the link between central obesity and periodontal health.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec002\">\n<jats:title>Methods<\/jats:title>\n<jats:p>A cross-sectional study was conducted with 10,289 participants enrolled from NHANES 2009 to 2014. WWI was calculated by dividing waist circumference by the square root of weight. We employed a multivariate logistic regression model and smoothed curve fitting method to evaluate the relationship between WWI and periodontitis. We also compared different subgroups and analyzed the interaction effects.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec003\">\n<jats:title>Results<\/jats:title>\n<jats:p>A significant positive association between WWI and periodontitis was observed in 10,289 participants aged \u226530 (OR: 1.20, 95% CI: 1.12\u20131.28). Upon categorizing WWI into quartiles, the top quartile group exhibited a 27% increased prevalence of periodontitis compared to the bottom quartile (OR: 1.27, 95% CI: 1.10\u20131.46; P for trend = 0.001). Among individuals aged 30 to 60, the strength of this positive correlation is more pronounced than in those aged 60 and above.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec004\">\n<jats:title>Conclusions<\/jats:title>\n<jats:p>WWI demonstrates a positive correlation with periodontitis with a particularly pronounced impact on moderate periodontitis, suggesting its potential to improve periodontitis prevention in a broad population.<\/jats:p>\n<\/jats:sec>","DOI":"10.1371\/journal.pone.0305010","type":"journal-article","created":{"date-parts":[[2024,6,6]],"date-time":"2024-06-06T17:32:51Z","timestamp":1717695171000},"page":"e0305010","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":5,"title":["Association between weight-adjusted waist index and periodontitis: A population-based study"],"prefix":"10.1371","volume":"19","author":[{"given":"Lihan","family":"Xu","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuntao","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenchen","family":"Zhao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaying","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-2505-745X","authenticated-orcid":true,"given":"Haojing","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2024,6,6]]},"reference":[{"key":"pone.0305010.ref001","doi-asserted-by":"crossref","first-page":"17038","DOI":"10.1038\/nrdp.2017.38","article-title":"Periodontal diseases.","volume":"3","author":"DF Kinane","year":"2017","journal-title":"Nature reviews Disease primers"},{"issue":"11","key":"pone.0305010.ref002","doi-asserted-by":"crossref","first-page":"1045","DOI":"10.1177\/0022034514552491","article-title":"Global burden of severe periodontitis in 1990\u20132010: a systematic review and meta-regression","volume":"93","author":"NJ Kassebaum","year":"2014","journal-title":"Journal of dental research"},{"issue":"1","key":"pone.0305010.ref003","doi-asserted-by":"crossref","first-page":"1332710","DOI":"10.1080\/20002297.2017.1332710","article-title":"Comorbidity of periodontal disease: two sides of the same coin? 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