OralCancer {gpk}

Comparison of two chemotherapy treatments for oral cancer

Description

Oral cancer is one common type of cancer in India. Habits like tobacco chewing are supposed to increase the chance of this disease. Our aim is to assess the role of two treatments (A and B). Assessment must be done after discounting for covariates.

Usage

data(OralCancer)

Format

A data frame with 31 observations on the following 8 variables.

Response

Response after treatment

Age

Age (years)

Gender

Gender

Tobacco

Tobacco indicator

Smoking

Smoking indicator

Alcohol

Alcohol indicator

History

History of surgical treatment

Treatment

Treatment for oral cancer (A/B)

Details

First formulate a 2-way contingency table (treatment X response). Compare treatments. Now form three way contingency tables using one covariate at a time. Compare treatments in each case. Verify that a contingency table with 4 or more dimensions tends to become sparse and has many empty cells. Use Logistic regression to handle all covariates simultaneously.

Source

http://ces.iisc.ernet.in/hpg/nvjoshi/statspunedatabook/databook.html