Fig. 3
From: The investigation of apoptosis-related genes in periodontitis

Correlation between gingival and blood levels of CASP2, CASP8, BCL2, HULC and PVT1 genes. The distribution of parameters is shown on the diagonals. Lower segment of diagonals shows the bivariate scatter plots. Correlation coefficient and P value are shown on the superior parts of the diagonal. Correlation coefficient values more and less than zero indicate positive and inverse correlations, respectively