Table 1.
Univariable analysis of clinicopathological features as prognostic factors for RFS events.
| Variables | Total N (%) |
RFS events |
P value | |
|---|---|---|---|---|
| Yes | No | |||
| Age (y) | 0.693 | |||
| ≤55 | 221(51.0) | 31(53.4) | 190(50.7) | |
| >55 | 212(49.0) | 27(46.6) | 185(49.3) | |
| Menstrual status | 0.758 | |||
| Pre/peri-menopausal | 167(38.6) | 21(36.2) | 146(38.9) | |
| Post-menopausal | 266(61.4) | 37(63.8) | 229(61.1) | |
| Co-morbidities | 0.563 | |||
| Absent | 279(64.4) | 40(69.0) | 239(63.7) | |
| Present | 154(35.6) | 18(31.0) | 136(36.3) | |
| Surgery type (breast) | 0.435 | |||
| BCS | 149(34.4) | 16(27.6) | 133(35.5) | |
| Mastectomy | 284(65.6) | 42(72.4) | 242(64.5) | |
| Surgery type (axillary) | 0.008 | |||
| SLNB | 238(55.0) | 19(32.8) | 219(57.4) | |
| ALND | 195(45.0) | 39(67.2) | 156(41.6) | |
| Histopathological types | 0.038 | |||
| IDC | 377(87.1) | 56(96.6) | 321(85.6) | |
| Others | 56(12.9) | 2(3.4) | 54(14.4) | |
| Lymphovascular invasion | <0.001 | |||
| Absent | 407(94.0) | 48(82.8) | 359(95.7) | |
| Present | 26(6.0) | 10(17.2) | 16(4.3) | |
| Tumor grade | 0.008 | |||
| I-II | 87(20.1) | 7(12.1) | 80(21.3) | |
| III | 289(66.7) | 50(86.2) | 239(63.7) | |
| NA | 57(13.2) | 1(1.7) | 56(14.9) | |
| Tumor size | 0.001 | |||
| ≤2 cm | 219(50.6) | 16(27.6) | 203(54.1) | |
| >2 cm | 214(49.4) | 42(72.4) | 172(45.9) | |
| Lymph nodes involvement | <0.001 | |||
| Absent | 313(72.3) | 27(46.6) | 286(76.3) | |
| Present | 120(27.7) | 31(53.4) | 79(23.7) | |
| Ki-67 (%) | 0.112 | |||
| ≤30 | 139(32.1) | 14(24.1) | 125(33.3) | |
| >30 | 294(67.9) | 44(75.9) | 250(66.7) | |
| Abbreviations: RFS, recurrence-free survival; BCS, breast conserving surgery; SLNB, sentinel lymph node biopsy; ALND, axillary lymph node dissection; IDC, invasive ductal carcinoma; NA, not applicable. | ||||
The words in bold were clinical-pathological and sonographic variables included in our study.