Research Article
Expression of PD-1 on CD4+ Tumor-Infiltrating Lymphocytes in Tumor Microenvironment Associated with Pathological Characteristics of Breast Cancer
Table 1
The characteristics of patients.
| Items |
| Age, mean ± SD | 57.8 ± 13.6 | Histological grade, (%) | | I | 14 (11.3) | II | 82 (66.1) | III | 28 (22.6) | Vascular invasion, (%) | | No | 86 (67.7) | Yes | 41 (32.3) | Nerve invasion, (%) | | No | 101 (82.1) | Yes | 22 (17.3) | Axillary lymph node metastasis, (%) | | No | 22 (45.8) | Yes | 26 (54.2) | E-cadherin expression, (%) | | No | 6 (5.1) | Yes | 112 (94.9) | Ki-67 index, mean ± SD | 30% ± 25% | CK20 expression, (%) | No | 56 (91.8) | Yes | 5 (8.2) | CK7 expression, (%) | | No | 9 (13.2) | Yes | 59 (86.8) |
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