NeuDist (version 1.0.1)

headneck44: Head and Neck Cancer Survival Times

Description

A dataset containing survival times (in days) of 44 patients with Head and Neck cancer who were treated using radiotherapy. The dataset was originally reported by Efron (1988) in his work on logistic regression, survival analysis, and Kaplan--Meier methods.

Usage

headneck44

Value

An object of class "numeric".

The vector consists of 44 observed survival times (in days), each corresponding to a single patient diagnosed with Head and Neck cancer and treated with radiotherapy. Each value represents the time from treatment initiation to death or last follow-up. The dataset is commonly used as input for illustrating and comparing nonparametric survival analysis methods, including Kaplan--Meier estimation.

Format

A numeric vector of length 44 containing survival times (in days).

Details

This dataset has been widely used in survival analysis literature, particularly for demonstrating Kaplan--Meier estimation and related nonparametric survival techniques. The patients in the study were treated with radiotherapy, and their survival times were recorded.

References

Efron, B. (1988). Logistic regression, survival analysis and the Kaplan--Meier curve. Journal of the American Statistical Association, 83(402), 414--425.

Examples

summary(headneck44)

plot(
  headneck44,
  main = "Head and Neck Cancer Survival Times",
  ylab = "Days"
)