|
Factora
|
Odds ratiob [P-value]
|
|---|
|
Multivariable model 1c
|
Multivariable model 2d
|
|---|
|
Age: <65 vs ≥65 years
|
1.51 [P = 0.0056]
|
1.57 [P = 0.0020]
|
|
ECOG performance: 0 vs 1–4
|
1.80 [P = 0.00003]
|
1.84 [P = 0.00001]
|
|
Grading: Grade 1/2 vs grade 3
|
0.77 [P = 0.062]
|
0.77 [P = 0.058]
|
|
Radiotherapy: no vs yes
|
0.53 [P = 0.00002]
|
–
|
- ECOG, Eastern Cooperative Oncology Group
- aFirst group mentioned is reference; − = not in model. bA value >1.0 indicates a higher probability of receiving Herceptin treatment without chemotherapy, as compared to reference group. cIncluding radiotherapy in the analysis. dExcluding radiotherapy from the analysis
