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01.12.2014 | Original Paper | Ausgabe 12/2014

AIDS and Behavior 12/2014

Unannounced Telephone-Based Pill Counts: A Valid and Feasible Method for Monitoring Adherence

Zeitschrift:
AIDS and Behavior > Ausgabe 12/2014
Autoren:
R. Fredericksen, B. J. Feldman, T. Brown, S. Schmidt, P. K. Crane, R. D. Harrington, S. Dhanireddy, J. McReynolds, W. B. Lober, D. R. Bangsberg, M. M. Kitahata, Heidi M. Crane
Wichtige Hinweise
This work was previously presented in part at the 6th International Conference on HIV Treatment and Prevention Adherence.

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.

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