Table 2

Characteristics of breast implants in mastectomy-treated breast cancer patients in the Surveillance, Epidemiology, and End Results Breast Implant Surveillance Study, 1983–1989 (n = 866)a


Silicone gel (n = 333)
Saline (n = 149)
Double lumen (n = 314)
Other (n = 33)
Unknown (n = 37)
P value



n
%
n
%
n
%
n
%
n
%


Prevalence of type

38.4

17.2

36.3

3.8

4.3

Implant removal status











     No known removal
244
73.3
77
51.7
216
64.9
15
45.5
25
67.6
0.0001
     Removed
89
26.7
72
48.3
98
31.2
18
54.5
12
32.4

Implant replacement status











     No known replacement
262
78.7
87
58.4
237
75.4
17
51.5
26
70.3
0.0001
     Replaced
71
21.3
62
41.6
77
24.5
16
48.5
11
29.7


aExcludes 133 patients with missing implant information and 19 patients with bilateral implants of disordant types

Le et al. Breast Cancer Res 2005 7:R184   doi:10.1186/bcr974