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Are untimed antiretroviral drug levels useful predictors of adherence behavior?
Cheryl A Liechty1, Christopher S Alexander, P Richard Harrigan
1Division of Infectious Diseases, University of California San Francisco, San Francisco, CA, USA.
Abstract:
We examined cross-sectionally the relationship between untimed drug levels and adherence in 83 individuals. Abnormally low untimed antiretroviral drug levels were sensitive in identifying individuals adherent to 60% or less of medication doses over 3 - 5-week period. An abnormally low drug level was associated with a higher viral load. A single abnormally low untimed antiretroviral drug level can identify an individual with very low adherence at high risk of HIV disease progression and death.
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