Table 4 Multivariate logistic regression analysis for relative risk ratio of ER negative BC stratified by age, origin, pathologic tumour size, lymph-node metastasis and grade in both groups of cohort study (Eritrean and Sudanese women)
Clinical and tumour characteristics | p-value | Risk ratio | 95% Confidence interval | ||
|---|---|---|---|---|---|
Lower | Upper | ||||
Age in years | Age ≤ 50 compared to >50 | .039 | 1.480 | 1.019 | 2.149 |
Origin | Eritrean (reference Sudanese) | .956 | .988 | .634 | 1.537 |
Histologic type | aIDCNST (reference) | .198 | Â | Â | Â |
Invasive lobular carcinoma | .051 | .847 | .780 | 1.211 | |
other | .532 | .833 | .469 | 1.479 | |
Pathologic Tumour size | pT1 (reference) | .081 | Â | Â | Â |
pT2 | .154 | 1.438 | .873 | 2.368 | |
pT3 | .013 | 2.050 | 1.162 | 3.615 | |
pT4 | .632 | 1.194 | .577 | 2.471 | |
Lymph Node involvement | pN0 (reference) | .306 | Â | Â | Â |
pN1 | .149 | 1.432 | .880 | 2.332 | |
pN2 | .694 | 1.106 | .670 | 1.823 | |
pN3 | .133 | 1.556 | .875 | 2.768 | |
Grade | GIII (GI/II reference) | .000 | 2.203 | 1.534 | 3.164 |