Patients’ characteristics
NSCLC, Tumor, Cancer
TUMOR, NSCLC, CANCER
This study was based on the multi-institution registration database of 11 different institutions in China (Sun Yat-sen University Cancer Center; Affiliated Hospital of Qingdao University; Affiliated Jiangyin Hospital of Southeast University; Affiliated Tumor Hospital of Guangxi Medical University; Fujian Cancer Hospital, Fujian Medical University; Ningbo First Hospital, Ningbo Hospital of Zhejiang University; Taizhou First People's Hospital; The Second Affiliated Hospital of Medical College, Xi'an Jiaotong University; The Second Hospital of Jilin University; Third People's Hospital of Nantong City; Zhejiang Cancer Hospital). This study included 3002 patients diagnosed with NSCLC who underwent surgical resection between January 1999 and October 2013. A total of 1525 selected patients from Sun Yat-sen University Cancer Center were randomly divided into training cohort (Patient selection scheme for the study