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Selected Works of David Bangsberg
Article
Unannounced Telephone-Based Pill Counts: A Valid and Feasible Method for Monitoring Adherence
AIDS and Behavior (2014)
  • R. Fredericksen, University of Washington
  • B. J. Feldman, University of Washington
  • T. Brown, University of Washington
  • S. Schmidt, University of Washington
  • P. K. Crane, University of Washington
  • R. D. Harrington, University of Washington
  • S. Dhanireddy, University of Washington
  • J. McReynolds, University of Washington
  • W. B. Lober, University of Washington
  • David R. Bangsberg, Portland State University
  • M. M. Kitahata, University of Washington
  • Heidi M. Crane, University of Washington
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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.
Disciplines
Publication Date
2014
DOI
10.1007/s10461-014-0916-7
Publisher Statement
At the time of publication David Bangsberg was affiliated with the Harvard Medical School.
Citation Information
Fredericksen R, Feldman BJ, Brown T, Schmidt S, Crane PK, Harrington RD, Dhanireddy S, McReynolds J, Lober WB, Bangsberg DR, Kitahata MM, Crane HM. 2014. Unannounced Telephone-Based Pill Counts: A Valid and Feasible Method for Monitoring Adherence. AIDS Behav. 18(12):2265-73