PPARD and colorectal cancer: By contrast, analyses of a small cohort (n = 66) of colorectal cancer patients showed a correlation between high expression of PPARB/D mRNA and lower survival as compared with colorectal cancer patients with low expression of PPARB/D mRNA.30 Because this latter analyses was limited to data from 33 patients in each group the study is not powered as strongly as the former analyses.