Table 1.

Patient clinical and pathologic variables

STB Patients
BR9601 Patients
Number/total (%)Number/Total (%)
Grade
    199/391 (25.32)20/305 (6.55)
    2193/391 (49.36)100/305 (32.79)
    399/391 (25.32)185/305 (60.66)
    Unknown1113
Nodal status
    0193/369 (52.3)43/313 (13.74)
    1-3107/369 (29.0)176/313 (56.23)
    >469/369 (18.7)94/313 (30.03)
    Unknown335
Size
    T1 (<20mm)154/380 (40.53)94/308 (30.52)
    T2 (20-50mm)204/380 (53.68)203/308 (65.91)
    T3 (>50mm)22/380 (5.79)11/308 (3.57)
    Unknown22
NPI
    <3.5128/344 (37.21)65/311 (20.9)
    3.5-4.5106/344 (30.81)148/311 (47.59)
    >4.5110/344 (31.98)98/311 (31.51)
    Missing587
Age
    <50 y73/401 (18.2)90/318 (28.3)
    >50 y328/401 (81.8)228/318 (71.7)
    Missing1
Estrogen receptor status
    Positive402/402 (100.0)174/278 (62.59)
    Negative104/278 (37.41)
    Unknown40
Treatment
    Epi & CMFn/a155/318 (48.74)
    CMF alonen/a163/318 (51.26)
  • NOTE: Grade refers to Bloom and Richardson grade. Nodal status, number of positive nodes; NPI, Nottingham Prognostic Index = grade + nodal status + 0.02 × size in mm.