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Table 4 Status of E-Cadherin and COX-2 hypermethylation in healthy, periodontitis patients and breast cancer patients.

From: Epigenetic change in e-cardherin and COX-2 to predict chronic periodontitis

Groups Hypermethylation of Cox-2(%) Chi-square Pearson Relative Risk (95% confidence Intervals) Hypermethylation of E-cadherin(%) Chi-square Pearson Relative Risk (95% confidence Intervals)
Healthy subjects 0/108(0%) --- --- 0/108(0%) ---- ---
(N = 108)       
Periodontitis patients 21/110(19%) 19.82 0.0485 28/110(25%) 28.43 0.1091
(N = 110)   p < 0.0001 0.0066-0.3543   p < 0.0001 0.005-0.2627
Breast cancer patients 37/106(35%) 42.29 0.0265 40/106(38%) 46.8 0.0245
(N = 106)   p < 0.0001 0.0037-0.1899   p < 0.0001 0.0034-0.1753