Table 2.
Univariable analysis of sonographic features as prognostic factors for RFS events.
| Variables | Total |
RFS events |
P value | |
|---|---|---|---|---|
| N (%) | Yes | No | ||
| Orientation | 0.006 | |||
| Parallel | 382(88.2) | 44(75.9) | 338(90.1) | |
| Vertical | 51(11.8) | 14(24.1) | 37(9.9) | |
| Shape | 0.593 | |||
| Regular | 38(8.8) | 4(6.9) | 34(9.1) | |
| Irregular | 395(91.2) | 54(93.1) | 341(90.9) | |
| Margin | 0.623 | |||
| Circumscribed | 38(9.2) | 3(5.6) | 35(9.7) | |
| Indistinct | 42(10.2) | 6(11.1) | 36(10.0) | |
| Micro-lobulated | 80(19.4) | 12(22.2) | 68(18.9) | |
| Angular | 234(56.7) | 29(53.7) | 205(57.1) | |
| Spiculate | 19(4.6) | 4(7.4) | 15(4.2) | |
| Echo pattern | 0.273 | |||
| Hypoechoic | 410(94.7) | 57(98.3) | 353(94.1) | |
| Mixed-echoic | 23(5.3) | 1(1.7) | 22(5.9) | |
| Posterior acoustic pattern | 0.529 | |||
| No change | 188(44.2) | 26(47.3) | 162(43.8) | |
| Enhancement | 58(13.6) | 5(9.1) | 53(14.3) | |
| Shadowing | 168(39.5) | 23(41.8) | 145(39.2) | |
| Mixed change | 11(2.6) | 1(1.8) | 10(2.7) | |
| Architectural distortion | 0.842 | |||
| Absent | 327(76.0) | 46(79.3) | 281(75.5) | |
| Present | 103(24.0) | 12(20.7) | 91(24.5) | |
| Change in Cooper's ligament | 0.640 | |||
| Absent | 345(80.2) | 47(81.0) | 298 (80.1) | |
| Present | 85(19.8) | 11(19.0) | 74(19.9) | |
| Vessel morphology | 0.353 | |||
| Slim | 60(16.0) | 5(10.6) | 55(16.8) | |
| Wide | 315(84.0) | 42(89.4) | 273(83.2) | |
| Vessel distortion | 0.860 | |||
| Absent | 54(14.4) | 6(12.8) | 48(14.6) | |
| Present | 321(85.6) | 41(87.2) | 280(85.4) | |
| Abbreviations: RFS, recurrence-free survival. | ||||
The words in bold were clinical-pathological and sonographic variables included in our study.