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Table 1 Clinical and pathological characteristics of all patients grouped as 40 years and > 40 years old

From: Being 40 or younger is an independent risk factor for relapse in operable breast cancer patients: The Saudi Arabia experience

Characteristics Age (years) P-value Total (unknown)
  ≤ 40 n (%) > 40 n (%)   
Node Status     838
   Positive 159 (57.8) 320 (56.8) 0.7878 (29)
   Negative 116 (42.2) 243 (43.2)   
Tumor Size     824
   ≤ 2 93 (32.3) 186 (32.1)   (43)
   3 – 5 155 (53.8)) 320 (55.3) 0.8532  
   ≤ 5 40 (13.9) 73 (12.6)   
Number of Nodes     824
   0 116 (42.3) 241 (43.1)   (43)
   1 – 3 83 (30.3) 178 (31.8) 0.6731  
   4 – 10 51 (18.6) 104 (18.6)   
   > 10 24 (8.8) 36 (6.4)   
Stage     762
   I 38 (15.0) 67 (13.1)   (105)
   II 170 (67.5) 347 (68.1) 0.7259  
   III 44 (17.5) 96 (18.8)   
Grade     793
   I 7 (2.6) 38 (7.2)   (74)
   II 130 (48.9) 297 (56.4) 0.0006  
   III 129 (48.5) 192 (36.4)   
Histopathology     854
     (13)
   Infiltrating ductal 270 (98.5) 520 (93.2) 0.0009  
   Infiltrating lobular 4 (1.5) 38 (6.8)   
Lymph-Vascular Invasion     702
   Both Positive 84 (36.7) 159 (33.8) 0.4459 (165)
   Both Negative 145 (63.3) 312 (66.2)   
Hormonal Receptor Status     677
   ER+ PR+ 99 (44.6) 252 (55.4) 0.0086 (190)
   ER- PR- 69 (31.1) 99 (21.8)   
   ER+ PR- 13 (5.9) 39 (8.6)   
   ER- PR+ 41 (18.5) 65 (14.3)   
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