S1.

General information of patients

Clinical items	n/n
PFS, progression-free survival; OS, overall survival; *, good: PFS ≥3 years, poor: PFS <3 years; **, good: OS ≥5 years, poor: OS <5 years.
Gender
Female/Male	52/146
Age (year)
≤60/>60	80/118
Tumor location
Cardia/Noncardia	46/152
Lauren Classification
Intestinal/Diffuse/Mix/unknown	86/26/74/12
TNM stage
I/II/III/IV	21/75/95/7
Vessel carcinoma embolus
Found/Not found/Unknown	114/82/2
Lymph node metastasis
Metastasis/No metastasis/Unknown	143/54/1
3-year PFS
Good/Poor/Unknown*	109/78/11
5-year OS
Good/Poor/Unknown**	103/84/11