Adherence is defined as "the extent to which a person’s behavior coincides with medical or health
advice", which is very important, for both clinical researchers and physicians, to identify the treatment
effect of a specific medication(s).
A variety of measures have been developed to calculate the medication adherence. Definitions and
methods to address adherence differ greatly in public literature. Choosing which definition should
be determined by overall study goals. This package provides the functions to calculate medication
adherence based on commonly used definitions.