An object of class summary.intcure is returned.
It is a list that includes all the components of class intcure plus an
additional component statistics, which is a list of following components:
bta matrix with column Estimate, Stderr, zvalue,
and pvalue for the estimated value of beta in the latency model
gma matrix with column Estimate, Stderr, zvalue,
and pvalue for the estimated value of gamma in the incidence model
baseparaa matrix with column Estimate, Stderr,
zvalue, and pvalue for the estimated value of the parameters
in the baseline distribution
sigmaa matrix with column Estimate and Stderr for the
random effects in the model