Table 3.
Comparisons of clinicopathological characteristics between the radiotherapy perform and radiotherapy refused group in 1:1 matched case–control analysis
| Radiotherapy performed | Radiotherapy refused | P-value | |||
|---|---|---|---|---|---|
| No | % | No | % | ||
| Age | |||||
| ≤ 50 | 194 | 9.00 | 211 | 9.80 | 0.375 |
| > 50 | 1950 | 91.00 | 1933 | 90.20 | |
| Income | |||||
| < 65,000 | 1325 | 61.80 | 1320 | 61.60 | 0.875 |
| ≥ 65,000 | 819 | 38.20 | 824 | 38.40 | |
| Marital | |||||
| Married | 948 | 44.20 | 972 | 45.30 | 0.253 |
| Single | 266 | 12.40 | 291 | 13.60 | |
| Divorced | 930 | 43.40 | 881 | 41.10 | |
| Race | |||||
| White | 1839 | 85.80 | 1853 | 86.40 | 0.826 |
| Black | 178 | 8.30 | 170 | 7.90 | |
| Others | 127 | 5.90 | 121 | 5.60 | |
| Grade | |||||
| Grade I + II | 1705 | 79.50 | 1658 | 77.30 | 0.081 |
| Grade III + IV | 439 | 20.50 | 486 | 22.70 | |
| Stage | |||||
| Stage I | 1516 | 70.70 | 1479 | 69.00 | 0.363 |
| Stage II | 562 | 26.20 | 603 | 28.10 | |
| Stage III | 66 | 3.10 | 62 | 2.90 | |
| T stage | |||||
| T1 | 1637 | 76.40 | 1610 | 75.10 | 0.813 |
| T2 | 463 | 21.60 | 489 | 22.80 | |
| T3 | 27 | 1.30 | 28 | 1.30 | |
| T4 | 17 | 0.80 | 17 | 0.80 | |
| N stage | |||||
| N0 | 1872 | 87.30 | 1866 | 87.00 | 0.766 |
| N1 | 225 | 10.50 | 237 | 11.10 | |
| N2 | 29 | 1.40 | 28 | 1.30 | |
| N3 | 18 | 0.80 | 13 | 0.60 | |
| ER status | |||||
| Negative | 197 | 9.20 | 204 | 9.50 | 0.714 |
| Positive | 1947 | 90.80 | 1940 | 90.50 | |
| PR status | |||||
| Negative | 398 | 18.60 | 391 | 18.20 | 0.783 |
| Positive | 1746 | 81.40 | 1753 | 81.80 | |
| HER-2 status | |||||
| Negative | 1971 | 91.90 | 1951 | 91.00 | 0.274 |
| Positive | 173 | 8.10 | 193 | 9.00 | |
| Subtype | |||||
| HR + /HER-2 + | 130 | 6.10 | 146 | 6.80 | 0.749 |
| HR + /HER-2- | 1827 | 85.20 | 1807 | 84.30 | |
| HR-/HER-2 + | 43 | 2.00 | 47 | 2.20 | |
| HR-/HER-2- | 144 | 6.70 | 144 | 6.70 | |
| Chemotherapy | |||||
| No | 1956 | 91.20 | 1956 | 91.20 | 1.0 |
| Yes | 188 | 8.80 | 188 | 8.80 | |