Table 2.

The 5-year disease-free survival estimated by univariate Cox analysis for 447 women diagnosed with breast cancer (Juiz de Fora, Brazil, 2003-2005).

Variable	TNBC			Non-TNBC
	HR	95% CI	P value	HR	95% CI	P value
Age at diagnosis, y
<40 vs ⩾40	1.15	0.28–4.77	.85	1.91	1.10-3.34	.02
Ethnicity
Nonwhite vs white	1.47	0.76–2.88	.26	1.91	1.16–3.16	.01
Education level
Low/moderate vs high	1.55	0.67–3.58	.3	1.92	1.19–3.10	.01
Health services
Public vs private	1.16	0.60–2.24	.66	1.4	0.92–2.12	.12
Chemotherapy
Yes vs no	0.9	0.38–2.17	.82	1.74	1.08–2.82	.02
Tumor size, cm
>2 vs ⩽2	1.4	0.67–2.90	.37	2.58	1.59–4.19	<.001
Lymph node involvement
Positive vs negative	2.15	1.07–4.31	.03	2.28	1.47–3.53	<.001
Tumor grade
III vs I-II	0.88	0.42–1.82	.73	2.23	1.28–3.89	.01
Staging
III vs I-II	1.89	0.98–3.64	.05	3.89	2.56–5.90	<.001
p53
Moderate/high vs low	1.07	0.53–2.16	.86	1.88	1.16–3.05	.01
Ki67
Moderate/high vs low	0.91	0.39–2.11	.83	2.06	1.08–3.94	.03
Multifocality
Yes vs no	1.53	0.63–3.68	.34	1.62	0.81–3.22	.17
Multicentricity
Yes vs no	2.46	0.87–7.01	.09	1.7	0.74–3.90	.21
Lymphocytic infiltration
Positive vs negative	1.47	0.74–2.92	.27	1	0.65–1.54	.99

Abbreviations: CI, confidence interval; HR, hazard ratio; TNBC, triple-negative breast cancer.