Abstract
Phone-based unannounced pill counts to measure medication adherence are much more practical and less expensive than home-based unannounced pill counts, but their validity has not been widely assessed. We examined the validity of phone versus home-based pill counts using a simplified protocol streamlined for studies embedded in clinical care settings. A total of 100 paired counts were used to compare concordance between unannounced phone and home-based pill counts using interclass correlations. Discrepancy analyses using χ2 tests compared demographic and clinical characteristics across patients who were concordant between phone and home-based pill counts and patients who were not concordant. Concordance was high for phone-based and home-based unannounced total pill counts, as well as individual medication counts and calculated adherence. This study demonstrates that a simplified phone-based pill count protocol can be implemented among patients from a routine clinical care setting and is a feasible means of monitoring medication adherence.
Original language | English (US) |
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Pages (from-to) | 2265-2273 |
Number of pages | 9 |
Journal | AIDS and Behavior |
Volume | 18 |
Issue number | 12 |
DOIs | |
State | Published - Dec 1 2014 |
Externally published | Yes |
Keywords
- Adherence
- Antiretroviral therapy
- Pill counts
ASJC Scopus subject areas
- Social Psychology
- Public Health, Environmental and Occupational Health
- Infectious Diseases