pancreas: Data from pancreatic cancer serum biomarker study

Description Usage Format Source References See Also

Description

First published by Wieand et al (1989), this dataset contains data on serum measurements for a cancer antigen (CA-125) and a carbohydrate antigen (CA19.9) both of which are measured on a continuous non-negative scale. The measurements were taken within a case-control study on 90 cases with pancreatic cancer and 51 controls who did not have cancer but pancreatitis. The primary question of the study was which one of the two biomarkers best distinguishes cases from controls.

Usage

1

Format

A data frame with 141 observations on the following 3 variables.

ca199

CA19.9 measurements.

ca125

CA125 measurements.

status

Patient status, 0 for controls and 1 for cases.

Source

The data was downloaded from http://labs.fhcrc.org/pepe/book/ on February 2, 2011.

References

Wieand, S., Gail, M. H., James, B. R., and James, K.L. (1989). A family of nonparametric statistics for comparing diagnostic markers with paired or unpaired data. Biometrika, 76, 585–592.

Pepe, M.S. (2003) The statistical evaluation of medical tests for classification and prediction. Oxford: Oxford University Press (Section 1.3.3).

See Also

This data is analyzed in the help file for the function logConROC.


logcondens documentation built on May 2, 2019, 6:11 a.m.