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Table 1 Tumor characteristics of the study cases

From: Obesity is a significant risk factor for breast cancer in Arab women

Parameter Total (%) N = 534 Pre-menopause n =266 Post-menopause n =267 p-value
Laterality     0.6945
  Left 275 (51.5) 133 (24.9) 142 (26.7)
  Right 250 (46.8) 129 (24.1) 120 (22.6)
  Bilateral 9 (1.7) 4 (0.75) 5 (0.94)
Stage Left     0.9483
  I 14(5.0) 7 (2.5) 7 (2.5)
  II 147 (52.5) 73 (26.1) 74 (26.5)
  III 90 (32.1) 42 (15.0) 48 (17.2)
  IV 29 (10.4) 13 (4.7) 16 (5.7)
Stage Right     0.0945
  I 26 (10.2) 15 (5.9) 11 (4.4)
  II 123 (48.2) 67 (26.4) 56 (22.1)
  III 76 (29.8) 39 (15.4) 36 (14.2)  
  IV 30 (11.8) 9 (3.6) 21 (8.3)
Grade     0.5207
  I 25 (4.9) 15 (3.0) 10 (2.0)
  II 285 (56.7) 141 (28.2) 143 (28.6)
  III 193 (38.4) 91 (18.2) 100 (20.0)
ER     
  Negative 173 (32.4) 104 (19.6) 69 (12.9)  
  Positive 312 (58.4) 139 (26.2) 170 (32.0) 0.0037
  Unknown 49 (9.2) 21 (3.9) 28 (5.3)
PR     
  Negative 220 (41.2) 120 (22.6) 98 (18.5)  
  Positive 265 (49.6) 123 (23.2) 141 (26.6) 0.1091
  Unknown 49 (9.2) 21 (3.9) 28 (5.3)  
Her_2     
  Negative 162 (54.6) 86 (29.3) 74 (25.2)  
  Positive 132 (44.4) 77 (26.2) 54 (18.4) 0.5072
  Unknown 3 (1.0) 1 (0.34) 2 (0.68)
  1. Missing a pre-menopausal patient.
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