Premenopausal Breast Cancer Risk Factors and Associations with Molecular Subtypes: A Case-Control Study
Table 1
Sociodemographic and clinical characteristics of study participants (cases and controls, ).
Variables
Cases ()
Controls ()
%
%
Age
Median (Min–Max)
41 (18-50) years
35 (24-49) years
Category
<30 years
6
3.5
6
3.5
30-40 years
72
42.4
72
42.4
>40 years
92
54.1
92
54.1
Education
No formal education
4
2.4
33
19.4
Primary
75
44.1
68
40
Secondary
77
45.3
60
35.3
University
14
8.2
9
5.3
Ubudehe (economic) category
Ubudehe 1
9
5.3
7
4.1
Ubudehe 2
39
22.9
81
47.6
Ubudehe 3
119
70.0
81
47.6
Ubudehe 4
3
1.8
1
0.6
Profession
Farmer
92
54.1
106
62.4
Business
47
27.6
38
22.4
Civil servant
16
9.4
11
6.5
Other
15
8.8
15
8.8
Family history of breast cancer
Yes
33
19.4
23
13.5
No
137
80.6
147
86.5
Presenting symptoms
Painless breast lump
155
45.6
Breast pain
121
35.6
Breast swelling
18
5.3
Breast discharge
15
4.4
Clinical stage
Stage 1
5
2.9
Stage 2
78
45.9
Stage 4
63
37.1
Stage 4
24
14.1
Disease progression
Slow progression
13
7.6
Intermediate
93
54.7
Rapid
64
37.6
Ubudehe category version 2015: the category number increases with the higher socioeconomic status (government of Rwanda, community-led Ubudehe categorization) http://www.gov.rw/news_detail/?tx_ttnews[tt_news] =1054&cHash=a).
