PBC910 {mixAK}

Subset of Mayo Clinic Primary Biliary Cholangitis (Cirrhosis) data

Description

This is a subset of PBCseq data which contains only data from 260 patients known to be alive and without liver transplantation at 910 days of follow-up. Furthermore, only a selection of longitudinal measurements is included and only those measurements that were obtained by 910 days. The PBC910 dataset was used in papers Komárek and Komárková (2013, 2014).

Usage

data(PBCseq)

Format

a data frame with 918 rows and the following variables

id

identification number of a patient

day

number of days between enrollment and this visit date (all measurements below refer to this date)

month

number of months between enrollment and this visit date

fu.days

total number of follow up days

delta.ltx.death

0/1 censoring indicator for event = death or liver transplantation related to fu.days

lbili

natural logarithm of above

platelet

platelet count

spiders

0/1 presence of blood vessel malformations in the skin

jspiders

jittered version of a variable spiders

Source

URL: http://lib.stat.cmu.edu/datasets/

References

Komárek, A. and Komárková, L. (2013). Clustering for multivariate continuous and discrete longitudinal data. The Annals of Applied Statistics, 7(1), 177–200.

Komárek, A. and Komárková, L. (2014). Capabilities of R package mixAK for clustering based on multivariate continuous and discrete longitudinal data. Journal of Statistical Software, 59(12), 1–38. doi:10.18637/jss.v059.i12.

See Also

PBC910, pbc, pbcseq

Examples

data(PBC910)
summary(PBC910)