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Table 2 Patient characteristics in the low- and high-risk subgroups

From: Accuracy validation of adjuvant! online in Taiwanese breast cancer patients - a 10-year analysis

  Low Risk (N = 78) High Risk (N = 481) p- value
Age, years 51.7 (11.0%) 49.1 (11.1) 0.056
ER    < 0.0001
Negative 0 192 (39.9)  
Positive 78 (100%) 279 (58.0)  
Unknown 0 10 (2.1)  
Grade    < 0.0001
I 78 (100%) 52 (10.8)  
II 0 204 (42.4)  
III 0 105 (21.8)  
Unknown 0 120 (24.9)  
Tumor Size    < 0.0001
T1 78 (100%) 183 (38.0)  
T2 0 259 (53.8)  
T3 0 39 (8.1)  
Node    < 0.0001
N0 78 (100%) 245 (50.9)  
N1 0 135 (28.1)  
N2 0 50 (10.4)  
N3 0 51 (10.6)  
Status    0.002
Died 3 84  
Survived 75 397  
Hormone therapy    0.001
Yes 76 (97.4) 400 (83.2)  
No 2 (2.6) 81 (16.8)  
Chemotherapy    < 0.0001
Yes 31 (39.7) 350 (72.8)  
No 45 (57.7) 104 (21.6)  
Less than expected cycles 2 (2.6) 27 (5.6)  
Observed probability 3.85% 17.46%  
Predicted probability 3.69% 21.99%