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Socioeconomic status, perceived stress scale (PSS-10), oral health behaviors and oral health impact profile (OHIP-14) were collected through questionnaire. Periodontal conditions were assessed with a full-mouth periodontal examination. PRA was computed through behavioral and clinical information. Variables were grouped into Predisposing Factors, Enabling, Need, Oral Health Behaviors and Perceived Health Outcome latent variables. Confirmatory factor analysis, structural ABM and model fitness were conducted.<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Results<\/jats:title>\n<jats:p>ABM applied to OHIP-14 showed acceptable model fit (\u03c7<jats:sup>2<\/jats:sup>\u00a0=\u20092.75, CFI\u2009=\u20090.92, TLI\u2009=\u20090.90, RMSEA\u2009=\u20090.05, CI 90% [0.04\u20130.07]). The average of OHRQoL was 9.5\u2009\u00b1\u200911.3. Patient with periodontitis and with a high number of missing teeth experienced worse OHRQoL. Uncontrolled DM participants had more periodontal treatment necessity and poorer OHRQoL. Characteristic like aging and lower levels of education were directly associated with better OHRQoL, but in indirect path the OHRQoL was diminishes. Good oral hygiene and preventative measures were associated to lower periodontal treatment necessity. Lower periodontal treatment necessity was associated to higher OHRQoL. Age, tooth loss and interproximal cleaning were the most associated items to Predisposing, Need and Oral Health Behaviors, respectively.<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Conclusion<\/jats:title>\n<jats:p>ABM confirmed age, number of missing teeth, DM, interproximal cleaning and perceived stress as associated factors for OHRQoL. Uncontrolled DM was associated to higher Need and poorer OHRQoL. Good oral hygiene habits promote a healthy periodontium and, consequently, increases OHRQoL.<\/jats:p>\n<\/jats:sec>","DOI":"10.1186\/s12903-020-01219-y","type":"journal-article","created":{"date-parts":[[2020,8,20]],"date-time":"2020-08-20T13:04:32Z","timestamp":1597928672000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["Periodontal status, perceived stress, diabetes mellitus and oral hygiene care on quality of life: a structural equation modelling analysis"],"prefix":"10.1186","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2503-260X","authenticated-orcid":false,"given":"Vanessa","family":"Machado","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1019-8263","authenticated-orcid":false,"given":"Jo\u00e3o","family":"Botelho","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8482-5936","authenticated-orcid":false,"given":"Lu\u00eds","family":"Proen\u00e7a","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7184-5965","authenticated-orcid":false,"given":"Ricardo","family":"Alves","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3211-1851","authenticated-orcid":false,"given":"Maria Jo\u00e3o","family":"Oliveira","sequence":"additional","affiliation":[]},{"given":"Lu\u00eds","family":"Amaro","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1487-9517","authenticated-orcid":false,"given":"Artur","family":"\u00c1guas","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0167-4077","authenticated-orcid":false,"given":"Jos\u00e9 Jo\u00e3o","family":"Mendes","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2020,8,20]]},"reference":[{"key":"1219_CR1","doi-asserted-by":"publisher","first-page":"249","DOI":"10.1016\/S0140-6736(19)31146-8","volume":"394","author":"MA Peres","year":"2019","unstructured":"Peres MA, Macpherson LMD, Weyant RJ, Daly B, Venturelli R, Mathur MR, et al. 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