Table 1

The clinicopathological data of the patients

Characteristicn%
No. of patients420100
Age, yr
 Mean (range)59.1 (23.3–91.6)
Tumor size
 T121852
 T216840
 T3246
 T4102
Lymph node status
 Negative24458
 Positive16840
 Unknown82
Stage
 I16038
 II21351
 III399
 Unknown82
Histological type
 Ductal27064
 Lobular6816
 Other8220
Histological grade
 I11026
 II19246
 III11828
ER status
 Positive32678
 Negative9322
 Data not available1<1
PR status
 Positive26162
 Negative15737
 Data not available21
Menopausal status
 Premenopausal13131
 Postmenopausal28969
Recurrence at 5 yr
 No34482
 Yes7618
Cause of death at 5 yr
 Alive33379
 Breast cancer5012
 Other379