No Variable Name Definition
1. Local Recurrence Yes or No
2. Age at Diagnosis ≤ 35, 35 to 44, 44-45, 55 ≥ years old
3. Age at Menarche ≤ 12 to ≥ 12 years old
4. Age at Menopause ≤ 50 to ≥ 50 years old
5. Infertility Yes or No
6. Family History of Breast Cancer Yes or No
7. History of other Cancer (CA) Yes or No
8. Location Upper outer Quadrant (UOQ), Upper inner Quad­rant (UIQ), Lower outer Quadrant (LOQ), Lower inner Quadrant (LIQ), Central, Axilla, Upper half, Lateral half, Lower half
9. Side Left, Right, Bilateral
10. Tumor Size ≤ 2cm to ≥ 5cm
11. LN/Nexion Lymph node involvement/number of removed nodes after surgery
12. Metastasis Bone, Liver, Lung, Brain, others
13. NPositive Number of Positive lymph node involvement
14. B.Pathology Results of Biopsy Pathology after
15. Type of surgery Mastectomy (Preservative or Bilateral)
16. G (Grade) 1, 2 or 3
17. Margin of Involvement Free or ≥ 2cm
18. Estrogen Receptor Negative or Positive
19. Progesterone Receptor Negative or Positive
20. Type of Chemotherapy Adjuvant or Neoadjuvant
21. Radiotherapy Yes or No
22. Hormone Therapy Tamoxifen, Raloxifen, Femara, Aromasin or Megace
23. Death Realted to Breast Cancer or unrelated
24. Her2 Negative or Positive
Table 1: Variables used for recurrence modeling of breast cancer.