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Table 1 Relapse status by nodal status and treatment for which frozen samples and GGI score were available.

From: The Gene expression Grade Index: a potential predictor of relapse for endocrine-treated breast cancer patients in the BIG 1–98 trial

  Relapse (Cases) No relapse (Controls) Total
N-/Nx, L 3 9 12
N-/Nx, T 1 5 6
N+, L 4 12 16
N+, T 2 12 14
Total 10 38 48
  1. N-: node-negative; N+: node-positive; Nx: unknown nodal status. L: letrozole and T: tamoxifen