RESUMO
BACKGROUND: Numerous studies have explored the correlation of periodontal disease (PD) with risk of hematopoi-etic and lymphatic cancers, but the findings were inconsistent. Therefore, we did a meta-analysis to ascertain the correlation of PD with risk of incident hematopoietic and lymphatic cancers. MATERIAL AND METHODS: The authors searched relevant studies in databases (PubMed, Web of Science, and MED-LINE). The summary relative risk (RR) along with 95% confidence interval (CI) was calculated by use of random or fixed effects models. RESULTS: Six studies were included in qualitative synthesis. The pooled analysis revealed that PD was significantly associated with an increased risk of hematopoietic and lymphatic cancers (RR = 1.17; 95% CI = 1.07-1.27; P = 0). Stratified analysis showed the association of PD with hematopoietic and lymphatic cancers remained significant in the never smokers (RR = 1.28; 95% CI = 1.07-1.54; P = 0.007), and in the American population (RR = 1.17; 95% CI = 1.05-1.30; P = 0.003), respectively. CONCLUSION: Never smokers population and the American population with PD have a higher risk of developing hematopoietic and lymphatic cancers. PD might be considered as a risk factor for hematopoietic and lymphatic cancers
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