Medication Adherence: A Literature Review

Charlotte A. Kenreigh, PharmD, and Linda Timm Wagner, PharmD


October 12, 2005

In This Article

Psychiatric Disorders

The adherence rate to psychotropic medications was measured for monolingual Hispanics, bilingual Hispanics, African Americans, and Caucasians, using a Medication Event Monitoring System (MEMS).[11] Significant differences were observed, even after controlling for confounding factors; the adherence rate for Caucasians was 90%, compared with 76% for the other ethnic groups.

As has been identified in other diseases, the presence of depressive symptoms was associated with a lower adherence rate. Pharmacists should be aware of confounding depressive symptoms whenever they assess patients for possible adherence issues. They also should be aware that ethnicity may affect adherence rates as well.


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