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Table 3 rN staging for gastric cancer patients after radical gastrectomy according to the numbers of retrieved Group 1 and 2 LNs

From: Retrieved lymph nodes from different anatomic groups in gastric cancer: a proposed optimal number, comparison with other nodal classification strategies and its impact on prognosis

8th UICC/AJCC N stage/(no. of patients) Examined LNs/(no. of patients)
Group 1 > 13 or Group 2 > 9 (Subgroup 1) Group 1 ≤ 13 and Group 2 ≤ 9 (Subgroup 2)
N0 (n = 812) rN0 (n = 505) rN1 (n = 307)
N1 (n = 331) rN1 (n = 206) rN2 (n = 125)
N2 (n = 294) rN2 (n = 185) rN3 (n = 109)
N3a (n = 212) rN3 (n = 178) rN3 (n = 34)
N3b (n = 81) rN4 (n = 81) rN4 (n = 0)
  1. N nodal stage based on the 8th edition of the Union for International Cancer Control/American Joint Committee on Cancer classification (UICC/AJCC) classification, rN revised nodal stage