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Table 1 Description of pair-wise groups

From: An array CGH based genomic instability index (G2I) is predictive of clinical outcome in breast cancer and reveals a subset of tumors without lymph node involvement but with poor prognosis

  All n = 135 (%) pN0 n = 75 pN + n = 60
  M- M+ M- M+ M- M+
Age < =55 n= 70 47 (35) 23 (17) 26 (35) 13 (17) 21 (35) 10 (17)
Age > 55 n = 65 43 (32) 22 (16) 24 (32) 12 (16) 19 (32) 10 (17)
All n = 135 90 (67) 45 (33) 50 (67) 25 (33) 40 (67) 20 (34)
  1. n: Number of tumors; Age in years; pN0/pN+: absence/presence of lymph node invasion; M- / M+: absence of detection/detection of distant metastasis at 11 years.