Research Article
Difference in Risk Factors for Breast Cancer by ER Status in an Indigenous African Population
Table 1
Tumor characteristics for the ER+/− cancer subtypes among women with invasive breast cancer, an Ugandan 2012 study.
| Characteristics | ER positive (%) 53 (47%) | ER negative (%) 60 (53%) | -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 | Stage* | | | | I & II | 11 (21) | 11 (19) | | III & IV | 41 (79) | 46 (81) | 0.809 | Tumor Grade** | | | | I | 8 (15) | 1 (2) | | II | 22 (42) | 8 (13) | | III | 22 (42) | 51 (85) | 0.001 | Histological types | | | | Ductal | 47 (89) | 59 (98) | | Others | 6 (11) | 1 (2) | 0.034 |
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1 missing value.
*4 missing values.
**1 missing value.
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