Fig. 3From: Establishment and validation of a predictive model of preeclampsia based on transcriptional signatures of 43 genes in decidua basalis and peripheral bloodModule eigengene (ME) adjacency heatmap. MEs are defined as the first principal component of the co-expression module matrix. A The map shows the relatedness of the five MEs identified by WGCNA (red, positive correlation; green, negative correlation). The color scale indicates the range of the correlation coefficients. The correlation coefficient is between − 1 and + 1, where ± 1 indicates the strongest possible correlation and 0 indicates the weakest possible correlation. B, C Correlation matrix between each ME and PE severity levels. Each ME was assigned a color and was tested for correlation with the severity levels of PE (disease and normal control). The colors encode correlation coefficients (red, positive correlation; green, negative correlation). The color scale indicates the range of the correlation coefficientsBack to article page