The outcomes assessed were:
the incidence of DVT using enoxaparin,
the incidence of DVT using desirudin,
the probability of detecting DVT,
the probability of death from a detected and treated DVT,
the probability of developing a pulmonary embolism (PE) if a DVT was detected,
the probability of sudden death from a PE,
the probability of detecting a PE,
the probability of death from a detected and treated PE,
the probability of death from a non-detected PE,
the probability of a false-positive diagnosis of a DVT, and
the probability of a false-positive diagnosis of a PE.