Table 3

Patient characteristics of those with malignant histology versus those without.


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

†Percentages are expressed of available data

* 'Fibroadenoma'

Dillon et al. BMC Cancer 2006 6:164   doi:10.1186/1471-2407-6-164