colon: Colon Cancer Staging and Survival Data

In sbalci/ClinicoPathJamoviModule: Analysis for Clinicopathological Research

Colon Cancer Staging and Survival Data

Description

Data from one of the first successful trials of adjuvant chemotherapy for colon cancer. Contains information on patient demographics, tumor characteristics, treatment, and survival. This dataset is part of the survival R package.

Usage

data(colon)

Format

A data frame with 1858 rows and 16 variables:

id

Numeric. Patient identifier.

study

Numeric. Study identifier (always 1 for this dataset).

rx

Character. Treatment regimen: "Obs" (Observation), "Lev" (Levamisole), "Lev+5FU" (Levamisole and 5-Fluorouracil).

sex

Numeric. Sex: 0=Female, 1=Male.

age

Numeric. Age in years.

obstruct

Numeric. Obstruction of colon by tumor: 0=No, 1=Yes.

perfor

Numeric. Perforation of colon: 0=No, 1=Yes.

adhere

Numeric. Adherence to nearby organs: 0=No, 1=Yes.

nodes

Numeric. Number of lymph nodes with detectable cancer.

status

Numeric. Censoring status: 0=Alive (censored), 1=Dead or Recurrence (event).

differ

Numeric. Differentiation of tumor: 1=Well, 2=Moderate, 3=Poor.

extent

Numeric. Extent of local spread: 1=Submucosa, 2=Muscle, 3=Serosa, 4=Contiguous structures.

surg

Numeric. Time from surgery to registration: 0=Short (<1 month), 1=Long (>=1 month).

node4

Numeric. More than 4 positive lymph nodes: 0=No (<=4), 1=Yes (>4).

time

Numeric. Days from registration to event (death or recurrence) or censoring.

etype

Numeric. Event type: 1=Recurrence, 2=Death.

Source

Original source: Moertel CG et al. (1990). Levamisole and fluorouracil for adjuvant therapy of resected colon carcinoma. New England Journal of Medicine, 322, 352-358. Included in the survival R package.

Examples

data(colon)
str(colon)
head(colon)
summary(colon$age)
table(colon$rx, colon$status)

sbalci/ClinicoPathJamoviModule documentation built on June 13, 2025, 9:34 a.m.