Heatmap of the differentially methylated CpG sites identified by array analysis between the clinical phenotypes of polycystic ovarian syndrome (control) and polycystic ovarian syndrome with diabetes (cases). The heatmap clusters/separates the six control samples on the left, from the six case samples on the right. Each row represents an individual CpG site, and each column represents an individual sample (listed above the heatmap). The colour scale beneath represents methylation status: unmethylated is green (β value = 0.0) and fully methylated is red (β value = 1.0).