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Table 1 Patient clinical and pathological variables

From: HER4 in breast cancer: comparison of antibodies against intra- and extra-cellular domains of HER4

Variable Number/total Valid (%)
Grade   
   1 99/391 25.32
   2 193/391 49.36
   3 99/391 25.32
   Unknown 11  
Nodal status   
   0 193/369 53.1
   1–3 107/369 29.1
   4+ 69/369 17.8
   Unknown 33  
Histological type   
   Ductal 322/397 80.1
   Lobular 45/397 11.6
   Other 30/397 8.3
   Unknown 5  
Size   
   T1 (<20 mm) 154/380 40.53
   T2 (20–50 mm) 204/380 53.68
   T3 (>50 mm) 22/380 5.79
   Unknown 22  
NPI   
   <3.5 128/344 37.21
   3.5–5.5 106/344 30.81
   5.5+ 110/344 31.98
   Missing 58  
Age   
   <50 years 73/402 36.5
   >50 years 328/402 63.5
  1. Grade is the Bloom and Richardson grade. Nodal status is the number of positive nodes. Pathological type: ductal, invasive ductal carcinoma; lobular, invasive lobular carcinoma; other includes mucinous, mucoid and so on. NPI, Nottingham Prognostic Index (grade + nodal status + 0.02 × size in mm).