Table 7. Multivariate logistic regression analysis in 221 patients with invasive ductal carcinoma of the breast using GRB7 location (cytoplasm vs. cytoplasm + membrane accentuation) as the response variable.

		95% Confidence interval
Effect	Odds ratio	Lower	Upper	p-value
Tumor size (N vs. P)	0.966	0.154	6.061	0.9706
Nodes (<2 vs. ≥2)	0.436	0.203	0.940	0.0341
HER-2 (N vs. P)	10.880	2.447	48.376	0.0017
HER-2 (Equiv vs. P)	4.332	0.808	23.222	0.0870
ER (N vs. P)	1.196	0.508	2.814	0.6815
PR (N vs. P)	0.608	0.233	1.587	0.3092

N = negative, P = positive, Equiv = equivocal. Not all data points were available for all patients. Due to the missing, total of 221 (not 225) were used for multivariate logistic model.