A series of approximately yearly angiographic examinations of heart transplant
recipients. The state at each time is a grade of cardiac allograft
vasculopathy (CAV), a deterioration of the arterial walls.
Usage
cav
Format
A data frame containing 2846 rows. There are 622 patients, the rows
are grouped by patient number and ordered by years after transplant,
with each row representing an examination and containing additional
covariates.
State 1 represents no CAV, state 2 is mild/moderate CAV
and state 3 is severe CAV. State 4 indicates death.
firstobs
(numeric)
0 = record represents an angiogram or date of death.
1 = record represents transplant (patient's first observation)
statemax
(numeric)
Maximum observed state so far for this patient (added in version 1.5.1)
Source
Papworth Hospital, U.K.
References
Sharples, L.D. and Jackson, C.H. and Parameshwar, J. and Wallwork,
J. and Large, S.R. (2003). Diagnostic accuracy of coronary angiopathy
and risk factors for post-heart-transplant cardiac allograft
vasculopathy. Transplantation 76(4):679-82