The DIST= option in the RANDOM statement enables you to specify either a gamma or lognormal distribution for the shared frailty. Bayesian frailty models are now supported. The DISPERSIONPRIOR= option in the BAYES statement specifies the prior distribution of the dispersion parameter.

Fleming-Harrington estimates can be requested with the METHOD=FM option in the BASELINE statement and in the OUTPUT statement. The DIRADJ option in the BASELINE statement specifies direct adjusted survival curves.