870 / 1674
Breast induration
Whole breast
%
Partial breast
%
P value
Baseline
Grade 0
122
29.4
107
25.8
0.28
Grade 1
140
33.7
166
40.0
Grade 2
132
31.8
119
28.7
Grade 3
20
4.8
23
5.5
Not graded
1
0
Total
830
415
415
Year 1
Grade 0
128
37.9
152
44.1
0.12
Grade 1
157
46.4
146
42.3
Grade 2
47
13.9
38
11.0
Grade 3
6
1.8
5
1.1
Not graded
0
4
Total
683
338
345
Year 2
Grade 0
128
48.9
144
56.9
0.24
Grade 1
107
40.8
90
35.6
Grade 2
22
8.4
18
7.1
Grade 3
4
1.5
1
0.4
Not graded
1
0
Total
515
262
253
Year 3
Grade 0
81
44.8
96
55.8
0.07
Grade 1
86
47.5
63
36.6
Grade 2
14
7.7
11
6.4
Grade 3
0
0
0
0
Not graded
0
2
Total
353
181
172
Scores
0:none
1:slightly palpable
2:palpable
3:clearly palpable, retraction of skin and fixation