Table 1.

Patient Characteristics by Tumor Size

Characteristic	T1 (n = 834)		T2 (n = 768)		T3/4 (n = 109)		P
	No.	%	No.	%	No.	%
Age, years
Median	49		48		46
≤ 50	467	56.0	461	60.0	73	67.0
> 50	367	44.0	307	40.0	36	33.0	.047
Lymph nodes
N0	553	67.4	341	44.8	26	25.0
N1	201	24.5	280	36.8	29	27.9
N2	39	4.8	89	11.7	22	21.2
N3	27	3.3	51	6.7	27	26.0	< .0001
Lymphovascular space invasion
Negative	631	76.2	484	63.5	45	42.1
Positive	197	23.8	278	36.5	62	57.9	< .0001
Grade
1 or 2	93	11.6	65	8.9	12	11.5
3	708	88.4	664	91.1	92	88.5	.21
Histology
Ductal	780	93.5	685	89.2	90	82.6
Other	54	6.5	83	10.8	19	17.4	< .0001
Adjuvant radiation
No	290	34.8	304	39.6	29	26.6
Yes	544	65.2	464	60.4	80	73.4	.012
Adjuvant chemotherapy
Anthracycline based	371	44.5	281	36.6	30	27.5
Taxane based	31	3.7	37	4.8	3	2.8
Anthracycline/taxane based	325	39.0	378	49.2	60	55.0
Nonanthracycline/taxane based	107	12.8	72	9.4	16	14.7	< .0001
Metastatic sites
Visceral	147	64.2	200	57.1	40	62.5
Bone only	36	15.7	58	16.6	8	12.5
Other	46	20.1	92	26.3	16	25.0	.40
No. of metastasis
1	125	54.6	190	54.3	38	59.4
2	55	24.0	84	24.0	13	20.3
3+	49	21.4	76	21.7	13	20.3	.96