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. 2021 Nov 18;15:2563–2575. doi: 10.2147/PPA.S269355

Table 2.

Characteristics of the Included Studies and Intervention Strategies

Authors Region/ Setting (Sample Size) Intervention Strategies Intervention Delivery and Intensity (Healthcare Professionals) Comparison Intervention Duration Adherence Measure (Data Sources)
Education/Counselling Print Material /Video Support/Follow-Up Pill Reminder Diary Face-to-Face/Phone Call/Email Mobile Based (SMS/App/Web)
Randomised controlled trials
Tan et al (2020)27 Malaysia/2 hospitals (n = 129) - Face-to-face (pharmacist) 1–2 monthly App daily Usual care 6 months MPR ≥ 90% (dispensing data)
Kekale et al (2016)28 Finland/8 hospitals (n = 86) - - Face-to-face (nurse) at initiation SMS daily Usual care 9 months Morisky-8 item ≥ 6 (participant interview)
Cohort studies
Dennison et al (2021)29 USA/1 medical centre (n = 40) - - - Face-to-face and phone call (pharmacist) If stable, 3 monthly. If unstable, 2–4 weekly. - Pre-treatment counselling, then as needed if referred (pharmacist) 4 years Morisky 4-item score=0 (participant self-reporting)
Sawicki et al (2019)30 USA/Claim reimbursement database (n = 558) - - - - Two-way SMS (pharmacist) 3 monthly and as needed One-way SMS (pharmacist) 1 year MPR ≥ 85% (claim database)
Lam et al (2015)35 USA/1 hospital (n = 44) - - - Face-to-face, phone call and email (pharmacist) As needed - Historical usual care at another hospital 5 years MPR ≥ 90% (dispensing data)
Moon et al (2012)32 Korea/4 hospitals (n = 114) - - Phone call (nurse) Every 2–8 weekly SMS daily Usual care 3 years The dose taken/dose should be taken (source not specified)
Before-and-after comparison studies
Santoleri et al (2019)34 Italy/1 hospital (n = 44) - - Face-to-face (pharmacist) As needed after review diary completed by patients - No diary 4 years RDD/PDD (dispensing data)
Leader et al (2018)33 Israel/4 hospitals (n = 47) - - - Face-to-face (clinician, nurse, pharmacist, patient peer) At initiation - Usual care 3 months Days with dosing taken as prescribed (MEMS)
Moulin et al (2017)36 Brazil/1 hospital (n = 23) - - - Face-to-face (pharmacist) monthly - Usual care 4 months Morisky 4-item scale (participant interview)

Abbreviations: MPR, medication possession ratio; RDD/PDD, received daily dose/prescribed daily dose; MEMS, Medication-event-monitoring system; USA, United States of America; App, application; SMS, short message service; web, website.