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REVIEW ARTICLE
Year : 2022  |  Volume : 13  |  Issue : 4  |  Page : 297-306

Is periodontitis a risk factor for lung cancer? A meta-analysis and detailed review of mechanisms of association


1 College of Dental Sciences & Research Centre, Ahmedabad, India
2 New York University College of Dentistry, New York, USA
3 Metropolitan Hospital Center, New York, NY, USA
4 Nitte (Deemed to be University), AB Shetty Memorial Institute Of Dental Sciences(ABSMIDS), Department of Conservative Dentistry And Endodontics, Mangaluru, Karnataka, India

Correspondence Address:
Dr. Raksha Bhat
Department of Conservative Dentistry and Endodontics, Nitte (Deemed To Be University), Ab Shetty Memorial Institute of Dental Sciences, Mangaluru, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ccd.ccd_117_22

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Background: Numerous studies have explored the correlation of periodontal disease (PD) with the risk of lung cancers, but the findings were inconsistent. Therefore, we did a meta-analysis to ascertain the correlation of PD with the risk of incident lung cancer. Methods: The authors searched relevant studies in databases (PubMed, Web of Science, Scopus, Embase, and MEDLINE) till November 2020. We registered the study at the International database of Prospectively Registered Systemic Reviews under the CRD42020198119. The summary relative risk (RR) along with a 95% confidence interval (CI) was calculated using fixed-effects models. Results: Twelve studies were included in the qualitative synthesis. The pooled analysis revealed that PD was significantly associated with an increased risk of lung cancer (RR 1.71; 95%CI 1.61–1.81; P < 0.01). Subgroup analysis was performed based on gender distribution, geographic location, and type of studies. Conclusion: From this current evidence, PD is a potential risk factor for the development of lung cancer. The risk for incidence of lung cancer is surged twice in the patients with PD, even though age and smoking are controlled in the studies.


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