Racial and Socioeconomic Disparities Are More Pronounced in Inflammatory Breast Cancer Than Other Breast Cancers
Table 1
Demographic characteristics of patients with inflammatory breast cancer compared with locally-advanced and all other breast cancer patients, Patterns of Care Study, 2004–2012.
Characteristic
IBC
LABC (IIIB, C)
IBC versus LABC
Others
IBC versus others
Number
Number
Number
Total
170
375
7079
Age at diagnosis, years
<50
50
26.4
113
32.2
0.02
2024
26.0
0.09
50–59
49
34.1
91
21.3
1818
25.9
60–69
36
22.6
76
18.8
1448
21.1
≥70
35
16.9
95
27.6
1789
27.0
Ancestry/ethnicity
European, non-Hispanic
81
68.4
174
66.4
0.54
4083
76.4
0.002
African, non-Hispanic
68
22.4
138
21.6
1925
13.7
Hispanic
14
7.6
38
8.2
615
6.2
Other
7
1.6
25
3.9
456
3.8
Body mass index (kg/m2)
<25
28
16.2
88
25.5
0.28
1743
27.0
0.05
25–29
35
24.4
77
22.1
1626
23.5
≥30
66
34.9
133
34.1
2086
27.6
Unknown
41
24.4
77
18.4
1624
21.9
Number of comorbidities
0
58
34.8
154
42.8
0.08
3162
45.3
0.03
1
57
34.3
105
27.5
2028
28.7
2
35
23.2
61
16.5
1127
15.2
≥3
20
7.7
55
13.2
762
10.8
Piccirillo Comorbidity Score
None
55
33.0
146
41.0
0.53
2948
42.1
0.01
Mild
68
40.6
147
37.5
2957
41.5
Moderate
29
17.0
49
14.1
709
10.0
Severe
16
7.9
27
6.0
287
3.8
Unknown
2
1.6
6
1.4
178
2.6
Method of detection
Screening mammography
8
3.8
72
19.9
<0.0001
3035
44.0
<0.0001
Clinical or self-breast exam
22
9.1
60
16.4
1055
13.7
Self-detection of lump
58
43.3
163
44.2
2119
29.9
Self-detection, no lump
74
37.1
62
14.6
399
5.2
Other, unknown
8
6.7
18
4.9
471
7.1
Patient health insurance
Private
77
48.4
167
52.3
0.58
4077
60.5
0.0004
Medicare only/public
38
21.3
88
24.5
1553
23.0
Medicaid
39
20.5
84
15.4
999
10.3
No insurance or unknown
16
9.9
36
7.8
450
6.2
weighted based on sampling design. values from chi-square tests.
