{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,11]],"date-time":"2026-08-11T09:30:53Z","timestamp":1786440653959,"version":"build-2736575974"},"reference-count":42,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T00:00:00Z","timestamp":1786320000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Behav. Sci.","Behavioral Sciences"],"abstract":"<jats:p>Cognitive impairment is a growing concern in rapidly aging societies, including China, and oral health has been proposed as a modifiable correlate of cognitive aging; however, few studies compare distinct oral health domains within the same older population or identify the subgroups in which associations are strongest. We analyzed data from 1707 community-dwelling adults aged 55+ in the 2022 Lifelong Learning and Productive Aging Survey of Shanghai (LEAP-SH) study. Cognitive problems were measured with the Ascertain Dementia 8 (AD8) total score (0\u20138; higher = worse). Self-reported oral health, oral health knowledge, and oral hygiene behavior were each standardized and entered in separate models adjusted for sociodemographic and health covariates; interaction models tested effect modification by six sociodemographic moderators. All three domains were associated with lower AD8 scores, most strongly oral health status (\u03b2 = \u22120.26; p &lt; 0.001), followed by oral health knowledge (\u03b2 = \u22120.14; p = 0.004) and oral hygiene behavior (\u03b2 = \u22120.10; p = 0.036). Associations were broadly consistent across subgroups; only two interactions, both involving knowledge, were nominally significant, and neither survived correction for multiple comparisons. Oral health may be a modifiable correlate of cognitive aging, although the cross-sectional design precludes causal inference.<\/jats:p>","DOI":"10.3390\/bs16081373","type":"journal-article","created":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T16:35:16Z","timestamp":1786379716000},"page":"1373","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Oral Health Status, Knowledge, Hygiene Behavior and Cognitive Function Among Older Adults in Shanghai, China"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-1984-7393","authenticated-orcid":false,"given":"Fangzhou","family":"Ye","sequence":"first","affiliation":[{"name":"Rory Meyers College of Nursing, New York University, New York, NY 10010, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9459-5580","authenticated-orcid":false,"given":"Xiaomin","family":"Qu","sequence":"additional","affiliation":[{"name":"School of Social Development, East China University of Political Science and Law, Shanghai 201620, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-8353-9696","authenticated-orcid":false,"given":"Renhao","family":"Li","sequence":"additional","affiliation":[{"name":"Rory Meyers College of Nursing, New York University, New York, NY 10010, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yiran","family":"Wan","sequence":"additional","affiliation":[{"name":"Rory Meyers College of Nursing, New York University, New York, NY 10010, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiangyao","family":"Zhu","sequence":"additional","affiliation":[{"name":"Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY 10461, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junwen","family":"Yu","sequence":"additional","affiliation":[{"name":"NYU Shanghai, Shanghai 200124, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3958-8609","authenticated-orcid":false,"given":"Xiang","family":"Qi","sequence":"additional","affiliation":[{"name":"Rory Meyers College of Nursing, New York University, New York, NY 10010, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,8,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2695","DOI":"10.1111\/jgs.17978","article-title":"Periodontal health, cognitive decline, and dementia: A systematic review and meta-analysis of longitudinal studies","volume":"70","author":"Asher","year":"2022","journal-title":"Journal of the American Geriatrics Society"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Baskaradoss, J. 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