Overall comparison of putative reference genes’ stability.

Results are calculated for all samples for each donor, i.e. statin-treated cells and combined statin-and-TNF-α-treated cells. Rankings are based on geNorm stability M-values, NormFinder stability values and coefficient of correlation values (r) counted by BestKeeper. SD values calculated by BestKeeper are also given in the table. The genes with SD >1 are eliminated from further analysis. For the overall final ranking the geometric mean of the weights (GeoMean) assigned by the rankings from all three programs was calculated.