Table 1. Open in new tab Demographic and...

	All patients
All patients	1074	100
Age, years [mean, SD]	[54.4, 10.6]
20-39	104	10
40-49	231	22
50-59	395	37
60-79	344	32
Year of diagnosis
2011	205	19
2012	210	20
2013	219	20
2014	210	20
2015	230	21
T classification
T1a	103	10
T1b	167	16
T1c	804	75
Histological grade (Nottingham)
I	62	6
II	364	34
III	627	58
Unknown	21	2
Adjuvant chemotherapy
No	224	21
Yes	850	79
Event
Death	81	7.5
Locoregional recurrence	41	3.8
Distant recurrence	33	3.1

	All patients
All patients	1074	100
Age, years [mean, SD]	[54.4, 10.6]
20-39	104	10
40-49	231	22
50-59	395	37
60-79	344	32
Year of diagnosis
2011	205	19
2012	210	20
2013	219	20
2014	210	20
2015	230	21
T classification
T1a	103	10
T1b	167	16
T1c	804	75
Histological grade (Nottingham)
I	62	6
II	364	34
III	627	58
Unknown	21	2
Adjuvant chemotherapy
No	224	21
Yes	850	79
Event
Death	81	7.5
Locoregional recurrence	41	3.8
Distant recurrence	33	3.1

Table 1.

Demographic and clinicopathological characteristics of the 1074 patients with T1N0M0 TNBC included in this study.

Characteristics	N	%
	All patients
All patients	1074	100
Age, years [mean, SD]	[54.4, 10.6]
20-39	104	10
40-49	231	22
50-59	395	37
60-79	344	32
Year of diagnosis
2011	205	19
2012	210	20
2013	219	20
2014	210	20
2015	230	21
T classification
T1a	103	10
T1b	167	16
T1c	804	75
Histological grade (Nottingham)
I	62	6
II	364	34
III	627	58
Unknown	21	2
Adjuvant chemotherapy
No	224	21
Yes	850	79
Event
Death	81	7.5
Locoregional recurrence	41	3.8
Distant recurrence	33	3.1

Characteristics	N	%
	All patients
All patients	1074	100
Age, years [mean, SD]	[54.4, 10.6]
20-39	104	10
40-49	231	22
50-59	395	37
60-79	344	32
Year of diagnosis
2011	205	19
2012	210	20
2013	219	20
2014	210	20
2015	230	21
T classification
T1a	103	10
T1b	167	16
T1c	804	75
Histological grade (Nottingham)
I	62	6
II	364	34
III	627	58
Unknown	21	2
Adjuvant chemotherapy
No	224	21
Yes	850	79
Event
Death	81	7.5
Locoregional recurrence	41	3.8
Distant recurrence	33	3.1

Abbreviation: TNBC, triple-negative breast cancer.