A sensitivity analysis based on a pattern mixture model
was conducted to evaluate the impact of missing data on
the primary end point. In this approach, missing
calculated LDL-C values during the on-treatment period
were multiply imputed using a model assuming “missing
at random”; missing calculated LDL-C values during the
posttreatment period were multiply imputed using
random draws from a normal distribution where the
mean was equal to subject's own baseline value.