Research Article
Difference in Risk Factors for Breast Cancer by ER Status in an Indigenous African Population
Table 2
Association between selected breast cancer risk factors and invasive breast cancer ER subtypes, an Uganda study 2012.
| | Characteristics | ER positive
(%) | ER negative
(%) | -value |
| | Age | | | | | 50 | 37 (70) | 33 (55) | | | >50 | 16 (30) | 27 (45) | 0.106 | | Setting† | | | | | Rural | 31 (60) | 31 (52) | | | Urban | 21 (40) | 29 (48) | 0.399 | | BMI | | | | | 1 (normal) | 19 (36) | 26 (43) | | | 2 (underweight) | 1 (2) | 1 (2) | | | 3 | 16 (30) | 13 (22) | | | 4 | 17 (32) | 20 (33) | 0.750 | | Parity | | | | | Nulliparous | 4 (8) |
2 (3.) | | | 1–3 | 22 (42) | 20 (33) | | | 4–6 | 18 (34) | 18 (30) | | | 7 | 9 (17) | 20 (33) | 0.211 | | AFB | | | | | 0 (<20 years) | 23 (50) | 29 (55) | | | 1 (20–24 years) | 12 (26) | 17 (32) | | | 2 (25–30 years) | 7 (15) | 6 (11) | | | 3 (>30 years) | 4 (9) | 1 (2) | 0.399 | | Breastfeeding** | | | | | Yes | 39 (75) | 46 (78) | | | No | 13 (25) | 13 (22) | 0.713 | | Contraceptive use00 | | | | | Yes | 45 (90) | 55 (92) | | | No | 5 (10) | 5 (8) | 0.762 |
|
|
1 missing value.
**
−1 missing values.
003 missing values.
AFB: Age at first birth.
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