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Table 1 Basic characteristics of studies investigating the correlation between adherence rates measured by MEMS and SRQs

From: Correlation between adherence rates measured by MEMS and self-reported questionnaires: a meta-analysis

Author Year Disease Sample Size Age
(years)
Duration
(months)
Self-Report Questionnaires MEMS-Monitored
Adherence
(%)
Self-Report Adherence
(%)
Correlation
(rp or rs)
Arnsten J. 2001 HIV 133 43 6 Anonymous 53.4 78.1 0.46
Hugen P.W. 2002 HIV 26 39.9 0.5 VAS 91.1 86 0.73
Walsh J.C 2002 HIV 78 - 6 MASRI 92.9 93.3 0.63
Hamilton G.A. 2003 Hypertension 107 58 - MOS, Morisky, VAS 58.38 81.05 0.26
Oyugi J.H. 2004 HIV 36 35 3 AACTG 90.9 93.5 0.87
Fletcher C.V. 2005 HIV 258 40 12 AACTG 64 82 0.24
Halkitis P. 2005 HIV 300 42 - Anonymous 90 95 0.32
Jasti S. 2006 Iron deficiency 51 23 - Anonymous 68.1 76.5 0.35
Byerly M.J. 2008 Schizophrenia 61 44.3 6 BARS 66.81 68.35 0.59
Lu M. 2008 HIV 568 42 1 Anonymous 69.8 78.8 0.55
Zeller A. 2008 Hypertension Diabetes Dysdipidemia 66 62 2.5 ASRQ 79 91.3 0.29
  1. BARS: Brief adherence rating scale; AACTG: Adult AIDS clinical trials group adherence instrument; MEMS: Medication event monitoring systems; MOS: Medical outcomes study; Morisky: Morisky adherence rating scale; VAS: Visual analog scale; MASRI: Medication adherence self-report inventory; ASRQ: Adherence self-report questionnaire; Anonymous: A questionnaire without a specific name in a reviewed article.