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Article

The Association of Periodontal Treatment and Decreased Pneumonia: A Nationwide Population-Based Cohort Study

1
School of Dentistry, Chung Shan Medical University, Taichung 40201, Taiwan
2
Department of Dentistry, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
3
Department of Medical Research, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(1), 356; https://doi.org/10.3390/ijerph17010356
Received: 1 December 2019 / Revised: 25 December 2019 / Accepted: 2 January 2020 / Published: 5 January 2020
Pneumonia is a common respiratory infectious disease that involves the inflammation of the pulmonary parenchyma. Periodontal disease is widespread and correlated with pneumonia. However, the relationship between periodontal treatment and clinical infectious outcomes in patients with pneumonia has remained undetermined. The aim of this study was to investigate the association between periodontal treatment and the risk of pneumonia events in the Taiwanese population. A nationwide population-based cohort study was conducted using data from the Taiwanese National Health Insurance Research Database (NHIRD). A total of 49,400 chronic periodontitis patients who received periodontal treatment from 2001 to 2012 were selected. In addition, 49,400 healthy individuals without periodontal diseases were picked randomly from the general population after propensity score matching according to age, gender, monthly income, urbanization, and comorbidities. The Cox proportional hazard regression analysis was adopted to assess the hazard ratio (HR) of pneumonia between the periodontal treatment cohort and the comparison cohort. The average ages of the periodontal treatment and comparison groups were 44.25 ± 14.82 years and 44.15 ± 14.5 years, respectively. The follow up durations were 7.66 and 7.41 years for the periodontal treatment and comparison groups, respectively. We found 2504 and 1922 patients with newly diagnosed pneumonia in the comparison cohort and the periodontal treatment cohort, respectively. The Kaplan–Meier plot revealed that the cumulative incidence of pneumonia was significantly lower over the 12 year follow-up period in the periodontal treatment group (using the log-rank test, p < 0.001). In conclusion, this nationwide population-based study indicated that the patients with periodontal treatment exhibited a significantly lower risk of pneumonia than the general population. View Full-Text
Keywords: pneumonia; periodontal treatment; chronic periodontitis; nationwide population; cohort study; Taiwan pneumonia; periodontal treatment; chronic periodontitis; nationwide population; cohort study; Taiwan
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MDPI and ACS Style

Yang, L.-C.; Suen, Y.-J.; Wang, Y.-H.; Lin, T.-C.; Yu, H.-C.; Chang, Y.-C. The Association of Periodontal Treatment and Decreased Pneumonia: A Nationwide Population-Based Cohort Study. Int. J. Environ. Res. Public Health 2020, 17, 356. https://doi.org/10.3390/ijerph17010356

AMA Style

Yang L-C, Suen Y-J, Wang Y-H, Lin T-C, Yu H-C, Chang Y-C. The Association of Periodontal Treatment and Decreased Pneumonia: A Nationwide Population-Based Cohort Study. International Journal of Environmental Research and Public Health. 2020; 17(1):356. https://doi.org/10.3390/ijerph17010356

Chicago/Turabian Style

Yang, Li-Chiu, Yih-Jane Suen, Yu-Hsun Wang, Tai-Chen Lin, Hui-Chieh Yu, and Yu-Chao Chang. 2020. "The Association of Periodontal Treatment and Decreased Pneumonia: A Nationwide Population-Based Cohort Study" International Journal of Environmental Research and Public Health 17, no. 1: 356. https://doi.org/10.3390/ijerph17010356

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