Table 3.

Univariate (chi-square) and multivariate (logistic regression) analysis for clinicopathological features associated with late recurrence after completion of 5 years tamoxifen

Variables	Univariate analysis	Multivariate analysis
	P value	Odds ratio	95 % CI	P value
Age (<50 vs ≥ 50 Years)	0.098	0.981	0.954–1.008	0.168
Menopausal status (pre-vs-post-)	0.409
Tumor size (>2 cm vs ≤2 cm)	0.002	1.297	0.762–2.207	0.338
ALNa metastasis (yes vs no)	<0.001	2.731	1.615–4.618	<0.001
PgRb (negative vs posituve)	0.420
HER2 (positive vs negative)	0.051
Histologic grade (Gr III vs Gr I or II)	0.018	1.396	0.786–2.479	0.256
Ki-67 (high vs low)c	0.480
Radiotherapy (yes vs no)	0.134
Chemotheraphy (yes vs no)	0.434

^aALN axillary lymph node

^bPgR progesterone

^cThe cutoff values of Ki-67 are 14 % in NCC and 10 % in SNUH [26]