Nomogram for predicting overall survival in Chinese triple-negative breast cancer patients after surgery

Table 1 Demographics and clinicopathological characteristics of triple-negative breast cancer patients

Characteristics	n = 336
Age at diagnosis, years, median (range)	57 (28-100)
Marital status, n (%)
Unmarried	101 (30.1)
Married	235 (69.9)
Laterality, n (%)
Left	171 (50.9)
Right	165 (49.1)
Tumor size, cm, n (%)
< 3	281 (83.6)
≥ 3	55 (16.4)
Grade, n (%)
Well-differentiated (I-II)	103 (30.7)
Poorly differentiated (III)	233 (69.3)
Stage, n (%)
I	146 (43.5)
II	160 (47.6)
III	30 (8.9)
T classification, n (%)
T1	169 (50.3)
T2	143 (42.6)
T3	18 (5.4)
T4	6 (1.8)
N classification, n (%)
N0	244 (72.6)
N1	67 (19.9)
N2	17 (5.1)
N3	8 (2.4)
Radiotherapy, n (%)
None	190 (56.6)
Yes	146 (43.4)
Chemotherapy, n (%)
None	109 (32.4)
Yes	227 (67.56)