High COL1A1 expression was associated with poor prognosis in tumor subgroups with enriched Type 2 helper T cells (HR=1.42, p=0.042) (Figure 5F), decreased regulatory T cells (HR=1.37, p=0.04) (Figure 5G), enriched natural killer cells (HR=1.46, p=0.034) (Figure 5H), enriched eosinophils (HR=2.18, p=0.011) (Figure 5I), and decreased basophils (HR=1.69, p=0.026) (Figure 5J). Here, COL1A1 is linked to neoplasm.