Table 2.

Univariate analysis of clinical and pathological characteristics associated with recurrence

Characteristic	RR (95% CI)	p-value
Positive axillary lymph nodes	3.53 (1.19–10.43)	0.014
Lymphovascular invasion	8.25 (1.12–60.76)	0.007
TNM stage (2–3 vs 1)	3.23 (1.09–9.60)	0.024
Tumor size (≤2 cm vs >2 cm)	2.08 (0.78–5.59)	0.14
Histologic grade (3 vs 1–2)	1.78 (0.66–4.82)	0.26
Luminal phenotype	1.33 (0.33–5.38)	0.68
Ki67 (≥20% vs <20%)	1.81 (0.56–5.85)	0.39

Abbreviations: CI, confidence interval; RR, relative risk.