Association between the IL-10 rs1800872 polymorphisms and periodontitis susceptibility: A meta-analysis

BACKGROUND: Periodontitis is a common disease with an unclear pathological mechanism. No precise consensus has been reached to evaluate the association between the IL-10 rs1800872 (- 592, -590, -597 C>A) polymorphism and periodontal disease. Thus, we performed this meta-analysis to collect more evidence-based information. METHODS: Four online databases, PubMed, Embase, Web of Science, and China Biology Medicine disc (CBM), were searched in August 2018. An odds ratio (OR) with a 95% confidence interval (CI) was applied to evaluate the association of the rs1800872 with periodontitis susceptibility. RESULTS: Twenty three case–control studies with 2714 patients and 2373 healthy controls were evaluated. The overall analyses verified that the IL-10 rs1800872 polymorphism was significantly associated with an increased risk of periodontitis in the allelic model, homozygote model, dominant model, and recessive model (A vs C: OR = 1.28, 95%CI = 1.11–1.49, P = .00, I(2) = 56.87%; AA vs CC: OR = 2.06, 95%CI = 1.32–3.23, P = .00, I(2) = 73.3%; AA + AC vs CC: OR = 1.42, 95%CI = 1.03–1.96, P = .03, I(2) = 76.2%; AA vs AC + CC: OR = 1.78, 95%CI = 1.26–2.56, P = .00, I(2) = 76.7%). Moreover, the subgroup analysis based on ethnicity, periodontitis type, and smoking status showed significant differences. CONCLUSIONS: The results of our meta-analysis demonstrate that rs1800872 is associated with periodontitis susceptibility in Caucasians and Asians. Moreover, A allele, AA genotype, CC genotype may be closely associated with chronic periodontitis (CP), while A allele, AA genotype may be closely associated with aggressive periodontitis (AgP).