From: Circulating microRNAs in the early prediction of disease recurrence in primary breast cancer
 | All patients | No relapse | Relapse |  | |||
---|---|---|---|---|---|---|---|
Characteristic | Number | Percentage | Number | Percentage | Number | Percentage | P |
Number of patients | 133 | Â | 84 | 63 | 49 | 37 | Â |
Age (years) | Â | Â | Â | Â | Â | Â | nsa |
 Median | 54 | 52 | 56 |  | |||
 Range | 27–79 | 35–79 | 27–75 |  | |||
Menopausal status | Â | Â | Â | Â | Â | Â | nsa |
 Premenopausal | 57 | 42,9 | 40 | 47.6 | 17 | 34.7 |  |
 Postmenopausal | 76 | 57.1 | 44 | 52.4 | 32 | 65.3 |  |
Tumor size (cm) | Â | Â | Â | Â | Â | Â | 0.015a |
 T1 | 60 | 45.1 | 42 | 50 | 18 | 36.7 |  |
 T2 | 66 | 49.6 | 41 | 48.8 | 25 | 51 |  |
 T3 | 7 | 5,3 | 1 | 1.2 | 6 | 12.3 |  |
Histological grade | Â | Â | Â | Â | Â | Â | nsa |
 I | 6 | 4.5 | 6 | 7.1 |  |  |  |
 II | 59 | 44.5 | 41 | 48.8 | 18 | 36.7 |  |
 III | 58 | 43.6 | 31 | 36.9 | 27 | 55.1 |  |
 Lobular | 5 | 3.7 | 3 | 3.6 | 2 | 4.1 |  |
 Unknown | 5 | 3.7 | 3 | 3.6 | 2 | 4.1 |  |
Infiltrated lymph nodes | Â | Â | Â | Â | Â | Â | 0.001a |
 0 | 49 | 36.8 | 37 | 44.0 | 12 | 24.5 |  |
 1–3 | 44 | 33.1 | 28 | 33.3 | 16 | 32.7 |  |
  ≥ 4 | 34 | 25.6 | 13 | 15.5 | 21 | 42.8 |  |
 Unknown | 6 | 4.5 | 6 | 7.2 |  |  |  |
ER status | Â | Â | Â | Â | Â | Â | Â |
 Positive | 88 | 66.2 | 56 | 66.7 | 32 | 65.3 |  |
 Negative | 43 | 32.3 | 26 | 31 | 17 | 34.7 | nsa |
 Unknown | 2 | 1.5 | 2 | 2.3 |  |  |  |
PR status | Â | Â | Â | Â | Â | Â | nsa |
 Positive | 90 | 67.7 | 61 | 72.6 | 29 | 59.2 |  |
 Negative | 41 | 30.8 | 21 | 25 | 20 | 40.8 |  |
 Unknown | 2 | 1.5 | 2 | 2.4 |  |  |  |
HER2 status | Â | Â | Â | Â | Â | Â | nsa |
 Positive | 15 | 11.3 | 7 | 8.3 | 8 | 16.3 |  |
 Negative | 112 | 84.2 | 72 | 85.7 | 40 | 81.6 |  |
 Unknown | 6 | 4.5 | 5 | 6 | 1 | 2.1 |  |
Adjuvant chemotherapy | Â | Â | Â | Â | Â | Â | nsa |
 Anthracycline-based | 13 | 9.8 | 9 | 10.7 | 4 | 8.2 |  |
 Taxanes+anthracyclines | 90 | 67.7 | 51 | 60.7 | 39 | 79.6 |  |
 Taxane-based | 21 | 15.8 | 15 | 17.9 | 6 | 12.2 |  |
 Others | 9 | 6.7 | 9 | 10.7 |  |  |  |
Hormone therapy | Â | Â | Â | Â | Â | Â | nsa |
 Yes | 103 | 77.5 | 68 | 80.9 | 35 | 71.4 |  |
 No | 28 | 21.0 | 14 | 16.7 | 14 | 28.6 |  |
 Unknown | 2 | 1.5 | 2 | 2.4 |  |  |  |