R: Monoclonal gammopathy data

mgus2 {survival} | R Documentation

## Monoclonal gammopathy data

### Description

Natural history of 1341 sequential patients with monoclonal gammopathy of undetermined significance (MGUS). This is a superset of the `mgus` data, at a later point in the accrual process

### Usage

    mgus2

### Format

A data frame with 1384 observations on the following 10 variables.

`id`

  subject identifier

`age`

  age at diagnosis, in years

`sex`

  a factor with levels `F` `M`

`dxyr`

  year of diagnosis

`hgb`

  hemoglobin

`creat`

  creatinine

`mspike`

  size of the monoclonal serum splike

`ptime`

  time until progression to a plasma cell malignancy (PCM) or last contact, in months

`pstat`

  occurrence of PCM: 0=no, 1=yes

`futime`

  time until death or last contact, in months

`death`

  occurrence of death: 0=no, 1=yes

### Details

This is an extension of the study found in the `mgus` data set, containing enrollment through 1994 and follow-up through 1999.

### Source

Mayo Clinic data courtesy of Dr. Robert Kyle. All patient identifiers have been removed, age rounded to the nearest year, and follow-up times rounded to the nearest month.

### References

R. Kyle, T. Therneau, V. Rajkumar, J. Offord, D. Larson, M. Plevak, and L. J. Melton III, A long-terms study of prognosis in monoclonal gammopathy of undertermined significance. New Engl J Med, 346:564-569 (2002).

[Package survival version 3.2-7 Index]