Figure 4: Stromal content’s association with overall survival.
These forest plots examine association with overall survival across ovarian cancer studies (n=16) using A) the AOCS tumor and stromal gene signatures or B) only the genes that were specific to tumor-associated stroma from the MGH study. The two TCGA gene expression datasets are n=510 Affymetrix HT_HG-U133A and n=256 Illumina HiSeq RNA sequencing. C) Kaplan-Meier curves of pathologist assessment of percent stroma (cutoff of 30%) in high stage TCGA tumors (HR 1.01 for each percent increase in stromal content, CI 1.0–1.02, p=0.024). A 30% stroma threshold is shown since it is between the original TCGA consortium tumor purity threshold of at least 80% and the later reduced threshold of 60% tumor cells.
