Table 2 Univariate logistic regression analysis of clinicopathologic characteristics of breast cancer for differentiating malignancy from the benign extramammary finding
Variables | Benign (percentage) | Malignancy (percentage) | Univariate logistic regression | |
|---|---|---|---|---|
Odds ratio (95 % CI) | P value | |||
Age | 56.29 ± 12.68 | 54.97 ± 15.45 | 0.99 (0.97, 1.01) | 0.569 |
Tumor size (cm) | 2.69 ± 1.89 | 4.23 ± 2.58 | 1.37 (1.09, 1.71) | 0.006 |
Lymph node metastasis | 23/66 (34.8) | 16/26 (61.5) | 3.99 (1.99, 8.00) | 0.000 |
Distant metastasis | 7/71 (9.9) | 48/62 (77.4) | 32.33 (12.13, 86.14) | 0.000 |
TNM stage (I/II vs. III/VI) | 19.18 (7.74, 47.54) | 0.000 | ||
Stage I | 23/71 (32.4) | 2/62 (3.2) | ||
Stage II | 30/71 (42.2) | 6/62 (9.7) | ||
Stage III | 13/71 (18.3) | 7/62 (11.3) | ||
Stage IV | 5/71 (7.0) | 47/62 (75.8) | ||