Table 1 Clincopathological features of the study populations
From: Development of nomograms to predict axillary lymph node status in breast cancer patients
Training Cohort | Validation Cohort | |||
|---|---|---|---|---|
N | % | N | % | |
Year Of Diagnosis | ||||
2010 | 47,203 | 47.38 | 0 | 0.00 |
2011 | 52,415 | 52.62 | 0 | 0.00 |
2012 | 0 | 0.00 | 50,965 | 50.05 |
2013 | 0 | 0.00 | 50,869 | 49.95 |
Age Group | ||||
Age < =50Yrs | 23,231 | 23.32 | 22,203 | 21.80 |
50-60Yrs | 25,967 | 26.07 | 26,600 | 26.12 |
> 60Yrs | 50,420 | 50.61 | 53,031 | 52.08 |
Location Of Lesions | ||||
UIQ | 18,891 | 18.96 | 19,939 | 19.58 |
UOQ | 53,372 | 53.58 | 54,995 | 54.00 |
LOQ | 11,425 | 11.47 | 11,776 | 11.56 |
LIQ | 9086 | 9.12 | 8776 | 8.62 |
Central | 6844 | 6.87 | 6348 | 6.23 |
Race | ||||
White | 84,246 | 84.57 | 85,967 | 84.42 |
African American | 10,334 | 10.37 | 10,429 | 10.24 |
Others | 4184 | 4.20 | 4568 | 4.49 |
Unknown | 854 | 0.86 | 870 | 0.85 |
T-Stage | ||||
T1a | 69,375 | 69.64 | 71,740 | 70.45 |
T2 | 27,675 | 27.78 | 27,528 | 27.03 |
T3 | 2568 | 2.58 | 2566 | 2.52 |
N-Stage | ||||
N0 | 73,662 | 73.94 | 76,954 | 75.57 |
N1 | 19,724 | 19.80 | 19,362 | 19.01 |
N2 | 4313 | 4.33 | 3829 | 3.76 |
N3 | 1919 | 1.93 | 1689 | 1.66 |
Histology | ||||
IDC | 75,974 | 76.27 | 77,806 | 76.40 |
ILC | 8582 | 8.61 | 9795 | 9.62 |
IDC & ILC | 5005 | 5.02 | 5076 | 4.98 |
IDC & Others | 3359 | 3.37 | 3390 | 3.33 |
IMC | 1849 | 1.86 | 1857 | 1.82 |
Others | 4849 | 4.87 | 3910 | 3.84 |
Grade | ||||
I | 25,663 | 25.76 | 26,780 | 26.30 |
II | 43,908 | 44.08 | 45,673 | 44.85 |
III | 29,420 | 29.53 | 28,304 | 27.79 |
Others/NA | 627 | 0.63 | 1077 | 1.06 |
Estrogen Receptor | ||||
Negative | 15,746 | 15.81 | 14,902 | 14.63 |
Positive | 83,872 | 84.19 | 86,932 | 85.37 |
Progesterone Receptor | ||||
Negative | 25,080 | 25.18 | 23,426 | 23.00 |
Positive | 74,538 | 74.82 | 78,408 | 77.00 |
Her2 | ||||
Negative | 87,670 | 88.01 | 92,043 | 90.39 |
Positive | 11,948 | 11.99 | 9791 | 9.61 |
Lymphovascular Invasion | ||||
Not Present | 80,657 | 80.97 | 83,226 | 81.73 |
Present | 18,961 | 19.03 | 18,608 | 18.27 |
Charlson-Deyo Score | ||||
0 | 83,641 | 83.96 | 84,466 | 82.94 |
1 | 13,297 | 13.35 | 14,319 | 14.06 |
2 | 2680 | 2.69 | 3049 | 2.99 |
Breast Surgery | ||||
BCS + RT | 64,552 | 64.80 | 66,480 | 65.28 |
Mastectomyb | 35,066 | 35.20 | 35,354 | 34.72 |