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Table 3 Patient characteristics of those with malignant histology versus those without.

From: The role of major duct excision and microdochectomy in the detection of breast carcinoma

  Patients with Malignant Lesions [n = 9] Patients with non-malignant lesions [n = 202] P-value
Median age (range) 54 (45–75) 49 (22–78) 0.32
Family history 3 (33%) 33/199† (17%) 0.19
Hormone replacement therapy/oral contraceptive use 1 (11%) 55/188† (29%) 0.45
Premenopausal 4 (44%) 104 (51%)† 0.7
Associated lump 2 (22%) 17 (8%) 0.19
Discharge colour    
   Serous 0 (0%) 33 (16%) 0.36
   Bloody 9 (100%) 141 (70%) 0.06
   Serosanguinous 0 (0%) 2 (1%) 1
   Other 0 (0%) 26 (13%) 0.6
Brown 0 (0%) 5 (2%) 1
Milky/pus 0 (0%) 8 (4%) 1
Green 0 (0%) 13 (6%) 1
Unilateral 9 (100%) 191 (95%) 1
Bilateral 0 (0%) 11 (5%) 1
Uniductal 8 (89%) 150 (78%)† 0.45
Multiductal 1 (11%) 42 (22%) 0.45
Unspecified   10  
Spontaneous 7 (78%) 152 (79%) 1
Expressed 2 (22%) 41 (21%) 1
Unspecified   9  
Radiology    
Mammography n = 9 n = 172  
Normal/benign findings (BIRADS 1 or 2) 9 (100%) 164 (95%) 1
Abnormal findings (BIRADS 3–5) 0 (0%) 8 (5%) 1
Ultrasound n = 2 n = 31  
Normal findings (BIRADS 1–2) 1 (50%) 26 (84%) 0.3
Abnormal findings (BIRADS 3–5) 1 (50%)* 5 (16%) 0.3
  1. †Percentages are expressed of available data
  2. * 'Fibroadenoma'