COL1A1 and pancreatic adenocarcinoma: Furthermore, survival analysis of these genes was conducted with the Kaplan-Meier method, and as a result, eight genes SPARC, THBS2, COL11A1, COL1A1, COL1A2, COL3A1, SERPINH1, and PLAU were obtained with the highest mortality rate for PAAD patients.