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This dataset, Colon_df, contains data from a clinical trial of chemotherapy for patients with Stage B/C colon cancer. The dataset includes 1,858 observations and 16 variables, providing information on patient demographics, treatment assignment, disease characteristics, and outcomes. Some observations contain missing values.

Usage

data(Colon_df)

Format

A data frame with 1,858 observations and 16 variables:

id

Patient identifier (numeric)

study

Study number (numeric)

rx

Treatment group (factor)

sex

Sex of the patient (numeric)

age

Age of the patient in years (numeric)

obstruct

Obstruction present (numeric indicator)

perfor

Perforation present (numeric indicator)

adhere

Adherence to adjacent structures (numeric indicator)

nodes

Number of lymph nodes with cancer (numeric)

status

Patient status (numeric indicator)

differ

Tumor differentiation (numeric)

extent

Extent of local spread (numeric)

surg

Surgical procedure performed (numeric indicator)

node4

At least 4 nodes positive (numeric indicator)

time

Follow-up time in days (numeric)

etype

Type of event (numeric indicator)

Source

Data taken from the survival package version 3.8-3

Details

The dataset name has been kept as 'Colon_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.