| Variable |
4-year OAS rate (%) |
4-year DFS rate (%) |
| Age at diagnosis: |
|
|
| <50 years |
88.4 |
86.2 |
| ≥50 years |
83.2 |
79.4 |
| P value |
p = 0.18, HR 0.66, 95% CI
0.36 – 1.22 |
p = 0.21, HR 0.69 95% CI
0.39 – 1.23 |
| Disease stage: |
|
|
| Stage I |
100 |
100 |
| Stage II |
88.8 |
79.7 |
| Stage III |
79.7 |
77.8 |
| P value |
p = 0.06 |
p = 0.032 |
| HR Status: |
|
|
| HR Positive |
87.5 |
85.1 |
| HR Negative |
82.7 |
78.2 |
| P value |
p = 0.1, HR 0.52, 95% CI:
0.241 – 1.135 |
p = 0.07, HR 0.52, 95% CI:
0.251 – 1.06 |
| Type of surgery: |
|
|
| BCS |
87.5 |
82.6 |
| MRM |
86 |
84.2 |
| P value |
p = 0.28, HR 1.44, 95% CI:
0.74 – 2.79 |
p = 0.96, HR 1.01, 95% CI:
0.547 – 1.88 |
| Radiation dose & fractionation: |
|
|
| HF |
90.4 |
85.6 |
| CF |
82.5 |
80.9 |
| P value |
p = 0.12, HR 0.63, 95% CI:
0.35 – 1.34 |
p = 0.039, HR 0.553, 95% CI:
0.315 – 0.970 |
|