Na‐Yeong Kim, Ji‐Eun Kim, Choong‐Ho Choi, Ki‐Ho Chung

Association between birth‐related factors and periodontitis in women: Korea National Health and Nutrition Examination Survey 2013–2018

  • Periodontics
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AbstractAimAdult women experience several changes in physiological status, such as pregnancy and childbirth, during their life cycle. This study analyses the association between birth‐related factors (the number of childbirths, abortions and miscarriages) and periodontitis using data from the Korea National Health and Nutrition Examination Survey, which represents Korean adults.Materials and MethodsThe study used data from Korea National Health and Nutrition Examination Survey VI and VII (2013–2018) and included 10,072 women 19 years or older, with no missing data on the variables assessed. Periodontitis was defined according to the Community Periodontal Index (CPI) criteria. Multiple logistic regression analysis, adjusting for age, household income, education, alcohol consumption, smoking, stress, body mass index, waist circumference, hypertension, diabetes mellitus, an oral examination within 1 year, daily tooth brushing frequency, hygiene products and self‐perceived oral health as identified via logistic regression analyses, was performed to determine the association between birth‐related variables and periodontitis.ResultsIn the crude model, the odds ratio (OR) showed a significantly increased risk of periodontitis (CPI ≥ 3) and severe periodontitis (CPI = 4) based on the number of childbirths, abortions and miscarriages (p < .05). After covariate adjustment, periodontitis (CPI ≥ 3) was associated with the number of childbirths (1: OR = 1.92; 95% confidence interval [CI]: 1.47–2.50; 2: OR = 2.03; 95% CI: 1.57–2.61; ≥3: OR = 2.11; 95% CI: 1.60–2.78). Furthermore, severe periodontitis (CPI = 4) was also associated with the number of childbirths (1: OR = 2.33; 95% CI: 1.24–4.38; 2: OR = 2.99; 95% CI: 1.62–5.52; ≥3: OR = 3.34; 95% CI: 1.79–6.21).ConclusionsThe findings of this large‐scale, nationally representative study suggest that the number of childbirths is associated with the severity of periodontitis. However, the relationship between the number of abortions and miscarriages and periodontitis (CPI ≥ 3) or severe periodontitis (CPI = 4) is not significant.

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