  It is common that in multiarm randomized trials, the outcome of interest is
"truncated by death," meaning that it is only observed or well defined
conditioning on an intermediate outcome. In this case, in addition to pairwise
contrasts, the joint inference for all treatment arms is also of interest.
Under a monotonicity assumption we present methods for both pairwise and joint
causal analyses of ordinal treatments and binary outcomes in presence of
truncation by death. We illustrate via examples the appropriateness of our
assumptions in different scientific contexts.
