The Prognostic Significance of Postoperative Adjuvant Chemotherapy in the Population Aged 75 Years and Older with Stage II–III Colorectal Cancer: A Retrospective Multi-Center Cohort Study

Lizhu Liu1 Department of Radiology, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Yunnan Cancer Centre, Kunming, 650118, People’s Republic of ChinaView further author information

Xiaolin Pang2 Department of Radiotherapy, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, People’s Republic of ChinaView further author information

Ke Zhao3 Department of Radiology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of ChinaView further author information

Yaxue Chen4 Department of Nursing, Dazhou Vocational and Technical College, Dazhou, Sichuan, 635000, People’s Republic of ChinaView further author information

Yanli Li1 Department of Radiology, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Yunnan Cancer Centre, Kunming, 650118, People’s Republic of ChinaView further author information

Ruimin You1 Department of Radiology, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Yunnan Cancer Centre, Kunming, 650118, People’s Republic of ChinaView further author information

Tingting Xu5 Department of Oncology, The People’s Hospital of Chuxiong Yi Autonomous Prefecture, Chuxiong, 675000, People’s Republic of ChinaView further author information

Mengmei Liu6 School of Public Health, Kunming Medical University, Kunming, 650000, People’s Republic of ChinaView further author information

Lin Wu7 Department of Pathology, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Yunnan Cancer Center, Kunming, 650118, People’s Republic of ChinaView further author information

Zhenhui Li1 Department of Radiology, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Yunnan Cancer Centre, Kunming, 650118, People’s Republic of ChinaCorrespondence[email protected]