Fig. 2

Identification of modules associated with the clinical information in the OA tissues. A Clustering dendrogram of OA samples and normal controls. B The scale-free fit index for soft-thresholding powers. C A heatmap showing the correlation between the gene module and clinical trait (OA and normal). Each module was assigned with different colors. The correlation coefficient in each cell represented the correlation between gene module and the clinical traits, which decreased in size from red to blue. D Distribution of average gene significance and errors in the modules associated with OA progression