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Table 2 Univariate logistic regression analysis of the relationship between sociodemographic, clinical, and pathological factors and ALN metastasis in breast cancer patients with one or two positive SLNs

From: Independent risk factors for axillary lymph node metastasis in breast cancer patients with one or two positive sentinel lymph nodes

  Parameter β SE P OR 95% CI
X1 Age −0.5341 0.26 0.04 0.586 0.352–0.976
X2 Occupation −0.2695 0.1221 0.0273 0.764 0.601–0.970
X3 Menarche 0.2967 0.233 0.2029 1.345 0.852–2.124
X4 Menopausal status −0.00174 0.2056 0.9933 0.998 0.667–1.494
X5 Delay in diagnosis (days) −0.00233 0.086 0.9784 0.998 0.843–1.181
X6 Tumor primary site 0.3760 0.2048 0.0664 1.457 0.975–2.176
X7 Tumor primary quadrant −0.1329 0.1088 0.2218 0.876 0.707–1.084
X8 Tumor Size −0.0365 0.2109 0.8626 0.964 0.638–1.458
X9 Pathology 0.1599 0.3748 0.6697 1.173 0.563–2.446
X10 ER −0.0632 0.2547 0.804 0.939 0.570–1.546
X11 PR −0.0323 0.2209 0.8839 0.968 0.628–1.493
X12 HER2 −0.0487 0.2806 0.8621 0.952 0.549–1.651
X13 Triple negative −0.1542 0.3865 0.69 0.857 0.402–1.828
X14 Ki-67 −0.0570 0.2503 0.8199 0.945 0.578–1.543
X15 Tumor grade 0.0994 0.1481 0.502 1.105 0.826–1.476
X16 Postoperative ALNs −0.0632 0.089 0.4778 0.939 0.789–1.118
X17 Ratio of positive to total SLNs 0.9606 0.215 < 0.0001 2.613 1.715–3.983
  1. Abbreviations: OR odds ratio, confidential interval, ER estrogen receptor, PR progesterone receptor, Her-2 human epidermal growth factor receptor-2, SLN sentinel lymph node, ALN axillary lymph node. To avoid missing any significant indicators, the factors with a significance of P < 0.05 in the univariate logistic regression analysis, including age, occupation, and the ratio of positive to the total number of SLNs were considered to entry into the multivariate logistic regression analysis