This dataset, Rotterdam_df, provides prognostic factors for breast cancer patients used in the studies of Royston and Altman. The dataset includes 2,982 observations and 15 variables, covering patient demographics, tumor characteristics, treatments, and outcomes. Some observations contain missing values.
Usage
data(Rotterdam_df)Format
A data frame with 2,982 observations and 15 variables:
- pid
Patient identifier (integer)
- year
Year of surgery (integer)
- age
Age at diagnosis (integer)
- meno
Menopausal status (integer indicator)
- size
Tumor size category (factor)
- grade
Tumor grade (integer)
- nodes
Number of positive lymph nodes (integer)
- pgr
Progesterone receptor level (integer)
- er
Estrogen receptor level (integer)
- hormon
Hormonal therapy received (integer indicator)
- chemo
Chemotherapy received (integer indicator)
- rtime
Relapse-free survival time in days (numeric)
- recur
Recurrence indicator (integer)
- dtime
Time to death in days (numeric)
- death
Death indicator (integer)
Details
The dataset name has been kept as 'Rotterdam_df' to avoid confusion with other datasets in the R ecosystem. This naming convention helps distinguish this dataset as part of the ForCausality package and assists users in identifying its specific characteristics. The suffix 'df' indicates that the dataset is a data frame. The original content has not been modified in any way.