Table 1.
Description of breast cancer population (926 patients)
| Characteristics | N | (%) |
|---|---|---|
| Age (years) | ||
| < 50 | 250 | (27) |
| 50-69 | 468 | (51) |
| ≥ 70 | 208 | (22) |
| Educational level | ||
| Less than baccalaureate (secondary-school diploma) | 627 | (71) |
| Baccalaureate or higher | 262 | (29) |
| Live alone | ||
| No | 738 | (79) |
| Yes | 194 | (21) |
| Tumour localisation | ||
| Central | 47 | (5) |
| Several quadrants | 247 | (27) |
| Medial or lateral | 603 | (68) |
| Stage AJCC/UICC* | ||
| Stage 0 and 1 | 447 | (49) |
| Stage 2 | 332 | (36) |
| Stage 3 | 137 | (15) |
| Menopausal status | ||
| Postmenopausal | 590 | (67) |
| Premenopausal | 284 | (33) |
| Nodal status | ||
| Negative | 566 | (63) |
| Positive | 336 | (37) |
| Histological size (mm) | ||
| ≤ 10 | 250 | (29) |
| 10-30 | 544 | (62) |
| > 30 | 76 | (9) |
| Hormonal receptor status | ||
| At least one receptor positive | 742 | (81) |
| Two receptors negative | 170 | (19) |
| Peritumoural vascular invasion | ||
| No | 385 | (42) |
| Yes | 229 | (25) |
| Unknown | 312 | (34) |
| Histological grade | ||
| Grade I | 211 | (24) |
| Grade II | 422 | (48) |
| Grade III | 254 | (72) |
| Care sector itinerary | ||
| Public | 333 | (36) |
| Private | 231 | (25) |
| Both (public and private) | 362 | (39) |
| Status of surgical hospital | ||
| Teaching | 223 | (24) |
| Not teaching | 703 | (76) |
| Region of surgery | ||
| Region 1 | 558 | (63) |
| Region 2 | 326 | (37) |
*AJCC: American Joint Committee on Cancer