Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/121394
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Type: Journal article
Title: Obesity and periodontitis in Australian adults: a population-based cross-sectional study
Author: Khan, S.
Bettiol, S.
Kent, K.
Barnett, T.
Peres, M.
Crocombe, L.A.
Citation: International Dental Journal, 2020; 70(1):53-61
Publisher: Wiley
Issue Date: 2020
ISSN: 1875-595X
1875-595X
Statement of
Responsibility: 
Shahrukh Khan, Silvana Bettiol, Katherine Kent, Tony Barnett, Marco Peres and Leonard A. Crocombe
Abstract: OBJECTIVES:Obesity and periodontitis are public health issues in Australia. This study aimed to determine the association between overweight/obesity and periodontitis in Australian adults. MATERIALS AND METHODS:The cross-sectional National Survey of Adult Oral Health 2004-2006 data were analysed. Body mass index was calculated, and a self-reported questionnaire was used to measure the estimated daily intake of added sugar. The mean number of sites with probing depth (PD) ≥ 4 mm and clinical attachment loss (CAL) ≥ 4 mm and presence of periodontitis were used as outcome measures. CDC/AAP periodontitis case definition was adopted. Bivariate analyses and multiple variable regression models were constructed. RESULTS:The study sample was 4,170 participants. The proportion of people that were overweight/obese was 51.9% [95% confidence interval (CI): 48.1%, 54.1%]. Overall 21.3% (95% CI: 19.3%, 23.5%) people experienced periodontitis. The mean number of sites with PD ≥ 4 mm and CAL  ≥ 4 mm were recorded as 0.7 (95% CI: 0.5, 0.9) and 2.4 (95% CI: 2.1, 2.6), respectively. Multiple variable analysis suggested that periodontal parameters [sites with PD ≥ 4 mm (0.13, 95% CI: -0.86, 0.35) and sites with CAL ≥ 4 mm (0.11, 95% CI: -0.58, 0.35) and presence of periodontitis (1.23, 95% CI: 0.96, 1.57)] were not associated with overweight/obesity when controlled for putative confounders. CONCLUSION:A positive association was found between overweight/obesity and periodontitis (PD and CAL). However, the statistical significance disappeared in the multiple variable regression analysis, where age, sex, smoking and dental visiting behaviour were found to be key determinants of periodontitis.
Keywords: Periodontal disease; body mass index; chronic disease; obesity; oral health; public health
Rights: © 2019 FDI World Dental Federation
RMID: 0030134738
DOI: 10.1111/idj.12514
Grant ID: http://purl.org/au-research/grants/nhmrc/349537
http://purl.org/au-research/grants/nhmrc/299060
http://purl.org/au-research/grants/nhmrc/349514
Appears in Collections:Dentistry publications

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