Does antihypertensive medication adherence reduce the risk of cardiovascular disease events in older adults?
Maintaining antihypertensive medication adherence at or above a proportion of days covered (PDC) of 80% substantially reduces the risk of cardiovascular events in older adults.
Antihypertensive adherence was associated with a significantly lower risk of CVD events among older adults. There appeared to be a threshold effect in reducing CVD events at around PDC 80%, above which the risk for CVD reduced substantially.
Yang et al. (Sun,) studied this question.