| Univariable an- alysis P | Multivariable analysis | Selected factors for building the nomogram | ||||
---|---|---|---|---|---|---|---|
Variable | HR | 95% CI | P | HR | 95% CI | P | |
Grade | 0.032 | Â | Â | Â | Â | Â | Â |
 I |  | Ref |  |  |  |  |  |
 II |  | 0.151 | 0.014–1.605 | 0.117 |  |  |  |
 III |  | 0.461 | 0.055–3.876 | 0.476 |  |  |  |
Tumor size | <0.001 | Â | Â | Â | Â | Â | Â |
 ≤2 cm |  | Ref |  |  | Ref |  |  |
 2-5 cm |  | 3.226 | 1.541–6.755 | 0.002 | 2.981 | 1.516–5.864 | 0.002 |
 >5 cm |  | 4.704 | 1.587–13.939 | 0.005 | 4.916 | 1.705–14.174 | 0.003 |
Node status | <0.001 | Â | Â | Â | Â | Â | Â |
 N0 |  | Ref |  |  | Ref |  |  |
 N1 |  | 2.121 | 0.941–4.778 | 0.070 | 2.183 | 1.050–4.559 | 0.037 |
 N2 + N3 |  | 4.545 | 2.086–9.902 | <0.001 | 4.900 | 2.328–10.312 | <0.001 |
Ki67 index | 0.018 | Â | Â | Â | Â | Â | Â |
 <40% |  | Ref |  |  | Ref |  |  |
 ≥40% |  | 2.778 | 1.339–5.763 | 0.006 | 2.906 | 1.440–5.863 | 0.003 |
sTIL group (%) | 0.025 | Â | Â | Â | Â | Â | Â |
 0–9 |  | Ref |  |  | Ref |  |  |
 10–19 |  | 0.578 | 0.269–1.240 | 0.159 | 0.523 | 0.252–1.085 | 0.082 |
 20–49 |  | 0.272 | 0.108–0.686 | 0.006 | 0.320 | 0.134–0.767 | 0.011 |
 ≥50 |  | 0.217 | 0.075–0.629 | 0.005 | 0.230 | 0.082–0.645 | 0.005 |
Surgery type | 0.198 | Â | Â | Â | Â | Â | Â |
 Mastectomy |  |  |  |  |  |  |  |
 Lumpectomy |  |  |  |  |  |  |  |
Radiotherapy | 0.315 | Â | Â | Â | Â | Â | Â |
 Yes |  |  |  |  |  |  |  |
 No |  |  |  |  |  |  |  |
Age | 0.392 | Â | Â | Â | Â | Â | Â |
 ≤35 |  |  |  |  |  |  |  |
 36–50 |  |  |  |  |  |  |  |
 >50 |  |  |  |  |  |  |  |
Marital status | 0.588 | Â | Â | Â | Â | Â | Â |
 Married |  |  |  |  |  |  |  |
 Unmarried |  |  |  |  |  |  |  |
Family history of breast cancer | 0.274 | Â | Â | Â | Â | Â | Â |
 Yes |  |  |  |  |  |  |  |
 No |  |  |  |  |  |  |  |
Menopausal status | 0.107 | Â | Â | Â | Â | Â | Â |
 Premenopausal |  |  |  |  |  |  |  |
 Postmenopausal |  |  |  |  |  |  |  |
Histology | 0.224 | Â | Â | Â | Â | Â | Â |
 Ductal |  |  |  |  |  |  |  |
 Lobular/other |  |  |  |  |  |  |  |
Chemotherapy type | 0.374 | Â | Â | Â | Â | Â | Â |
 Neoadjuvant |  |  |  |  |  |  |  |
 Adjuvant |  |  |  |  |  |  |  |
 No chemotherapy |  |  |  |  |  |  |  |
Chemotherapy regimen | 0.046 | Â | Â | Â | Â | Â | Â |
 anthracycline-based |  | Ref |  |  |  |  |  |
 taxane-based |  | 1.551 | 0.682–3.528 | 0.296 |  |  |  |
 anthracycline& taxane -based |  | 0.781 | 0.371–1.643 | 0.514 |  |  |  |