| Studies | Number of cases | Country | OS | DFS | Independent prognosis factors |
| Our study | 133 | Guinea | 57.9% | 64.3% | BMI, Origin of patients, radiotherapy, relapse |
| Al-Moundhri et al. 2004 | 152 | Oman | 62% | 64% | Axillary node involvement Tumor differentiation |
| Ben Gobrane et al. 2007 | 470 | Tunisia | 61% | NA | Surgery, radiotherapy |
| Gakwaya et al. 2008 | 297 | Uganda | 56% | NA | Stage |
| Makanjuola et al. 2014 | 224 | Nigeria | 24.1% | NA | Treatment (chemotherapy, surgery, radiotherapy) |
| Ngowa et al. 2015 | 404 | Cameroun | 30% | NA | Stage |