Clinical characteristics of patients
gastric GISTs, GISTs, tumors
TUMORS
231 patients (109 men and 122 women; mean age, 59.47 ± 10.13 years) from Center 1 and 78 patients (41 men and 37 women; mean age, 62.69 ± 10.78 years) from Center 2 were included in our series. The training cohort enrolled 161 patients with gastric GISTs consisting of 47 high-risk tumors and 114 low-risk ones. 70 patients with GISTs (21 high-risk tumors and 49 low-risk ones) and 78 patients with GISTs (16 high-risk tumors and 62 low-risk ones) constituted the internal validation cohort and the external test cohort, respectively.Details of the clinical characteristics of three cohorts are shown in Table 