miRNA cluster enrichment in human diseases. For each disease the log-odds (LOD) score is plotted. There is an enrichment of miRNA cluster members for 46 diseases (88.5%). miRNA cluster members are, on average, 1.4 times (LOD = 0.58) enriched compared to random. Green points depict enriched diseases (at least LOD = 0.15 for lung cancer). Black points indicate diseases without enrichment compared to random and red points depict disorders with few deregulated cluster members. For abbreviations of disease names see Additional file 13.