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

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 streaml...

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Bibliographic Details
Published in:AIDS and behavior 2014-12, Vol.18 (12), p.2265-2273
Main Authors: Fredericksen, R., Feldman, B. J., Brown, T., Schmidt, S., Crane, P. K., Harrington, R. D., Dhanireddy, S., McReynolds, J., Lober, W. B., Bangsberg, D. R., Kitahata, M. M., Crane, Heidi M.
Format: Article
Language:English
Subjects:
Adhesion
Adult
Anti-HIV Agents - therapeutic use
Antiretroviral drugs
Clinical Protocols
Correlation analysis
Demographics
Drug Administration Schedule
Drugs
Female
Health Psychology
HIV
HIV Infections - drug therapy
House Calls - statistics & numerical data
Human immunodeficiency virus
Humans
Infectious Diseases
Male
Medication Adherence - statistics & numerical data
Medicine
Medicine & Public Health
Middle Aged
Monitoring
Monitoring systems
Original Paper
Patient compliance
Patients
Public Health
Reproducibility of Results
Self Report
Sociodemographic Factors
Sociodemographics
Telephone - statistics & numerical data
Telephone communications
Telephones
Washington - epidemiology
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Summary: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 χ 2 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.
ISSN:1090-7165
1573-3254
DOI:10.1007/s10461-014-0916-7