Table 5.

Multivariate logistic regression model for the binary indicator of CTC_EP

Variable	Odds ratio	95 % CI Low	95 % CI Upper	P-value
SDF-1	16.90	0.91	314.67	0.03
(continous variable, log)
T-stage	1.03	0.32	3.38	0.97
T1 vs. ≥ T2
N-stage	0.88	0.30	2.60	0.81
N0 vs. N+
Grade	0.62	0.21	1.82	0.38
1 and 2 vs. 3
ER/PR status	3.13	0.76	12.96	0.13
Negative for both vs. positive for either
HER2/neu status	1.64	0.33	8.20	0.52
Negative vs. overexpressed