{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T04:20:43Z","timestamp":1747196443421,"version":"3.40.5"},"reference-count":46,"publisher":"Public Library of Science (PLoS)","issue":"5","license":[{"start":{"date-parts":[[2024,5,16]],"date-time":"2024-05-16T00:00:00Z","timestamp":1715817600000},"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>Background<\/jats:title>\n<jats:p>There may be an association between obesity and periodontitis, yet no studies have investigated the correlation between the new obesity indicator, the weight-adjusted-waist Index (WWI), and periodontitis.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec002\">\n<jats:title>Objective<\/jats:title>\n<jats:p>This study aims to investigate the association between the novel obesity index, weight-adjusted-waist index, and periodontitis.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec003\">\n<jats:title>Subjects and methods<\/jats:title>\n<jats:p>WWI was utilized to assess obesity, through measuring waist circumference (WC) and body weight. We analyzed cross-sectional NHANES data from 2009 to 2014 (1) using multivariate logistic regression to explore WWI\u2019s association with moderate\/severe periodontitis; (2) conducting subgroup analyses and interaction tests; and (3) fitting smoothed curves to the age-stratified logistic regression model.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec004\">\n<jats:title>Results<\/jats:title>\n<jats:p>The study involved 11,256 individuals, with 48.55% having moderate\/severe periodontitis. Upon adjusting for all relevant variables, a significant correlation between WWI and moderate\/severe periodontitis was observed (OR = 1.08, 95% CI: 1.01\u20131.17). Compared to the lowest quartile of WWI, there was a significant increase in the likelihood of moderate\/severe periodontitis in Quartile 2 (OR = 1.21, 95% CI: 1.06\u20131.39) and Quartile 3 (OR = 1.23, 95% CI: 1.07\u20131.42). Subgroup analyses for gender, age, education, smoking, and diabetes highlighted a positive association between WWI and moderate\/severe periodontitis in all subgroups, except for the diabetic population and individuals aged 65 years and older.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec005\">\n<jats:title>Conclusion<\/jats:title>\n<jats:p>The analysis revealed a positive correlation between WWI, a novel obesity index, and moderate\/severe periodontitis prevalence through diverse modeling approaches.<\/jats:p>\n<\/jats:sec>","DOI":"10.1371\/journal.pone.0302137","type":"journal-article","created":{"date-parts":[[2024,5,16]],"date-time":"2024-05-16T17:58:13Z","timestamp":1715882293000},"page":"e0302137","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":1,"title":["Association between weight-adjusted-waist index and periodontitis risk: A cross-sectional 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