Lymph node metastases per lymph node station
N0 disease, N0
DISEASE, METASTASES, LYMPH NODE METASTASES
A division was made between tier one lymph nodes and tier two lymph nodes based on the anatomical location as described by the JGCA [Tier one lymph node metastases were observed in 42.9% of patients in OTG and 53.3% of patients in MITG. This was not significantly different (Further in-depth analysis per lymph node station revealed lymph nodes metastases from station 7 (left gastric artery) showed a significant difference between OTG and MITG, respectively, 9.3% versus 34.9% (Assessment of survival via Cox-regression for tier one and tier two lymph nodes revealed no difference between N0 and tier one positive disease at 3 years (Cox-regression survival curves for patients with N0 disease, tier one lymph node metastases, and tier two nodal metastases. Correction was applied for T-stage and completeness of D2 resection