Table 2 Characteristics of patients with breast cancer and healthy controls
From: Association of interleukin-10 gene polymorphisms with breast cancer in a Chinese population
Variable | Patients, no. (%) | Controls, no. (%) | P- value |
|---|---|---|---|
| Â | n = 315 | n = 322 | Â |
Age(year) | Â | Â | 0.979 |
   < 48 | 165 (52.4) | 169 (52.5) |  |
   ≥48 | 150 (47.6) | 153 (47.5) |  |
Menopausal status | Â | Â | 0.593 |
   Premenopausal | 144 (45.7) | 154 (47.8) |  |
   Postmenopausal | 171 (54.3) | 168 (52.2) |  |
Tumor size (cm) | Â | Â | Â |
   < 2 | 104 (33.0) |  |  |
   2~5 | 167 (53.0) |  |  |
   ≥5 | 44 (14.0) |  |  |
LN involvement | Â | Â | Â |
   Positive | 117 (37.1) |  |  |
   Negative | 198 (62.9) |  |  |
ER expression | Â | Â | Â |
   Positive | 169 (53.7) |  |  |
   Negative | 146 (46.3) |  |  |
PR expression | Â | Â | Â |
   Positive | 166 (52.7) |  |  |
   Negative | 149 (47.3) |  |  |