Table 1 Data structure for the breast cancer dataset and associated means and standard deviations (SDs) after suitable transformation
Covariate | Variable Type | Groupings/Measurement | Label | X | Mean(SD) |
|---|---|---|---|---|---|
Age | Continuous | Years | Age | X 1 | 53.05(10.12) |
Lymph nodes | Continuous | Number of | LN | X 2 | 1.16(0.94) |
Progesterone receptor | Continuous | fmol | PGR | X 3 | 3.35(1.93) |
Oestrogen receptor | Continuous | fmol | ER | X 4 | 3.35(1.84) |
Hormonal treatment | Binary | 1 = Yes, 0 = No | TRT | X 5 | 0.36(0.48) |
Menopausal status | Binary | 0 = Pre, 1 = Post | MENO | X 6 | 0.58(0.49) |
Tumour group | Binary | 0 = Grade I, 1 = Grade II/III | TG | X 7 | 0.88(0.32) |
Tumour size | Continuous variable categorised | 1 = ≤20 mm, 2 = 21-30 mm, 3 = >30 mm | TS | X 8 | 3.27(0.46) |