PBC910: 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)

Arguments

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

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. tools:::Rd_expr_doi("10.18637/jss.v059.i12").

Examples

Run this code

data(PBC910)
summary(PBC910)