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Validated adherence scales used in a measurement-guided medication management approach to target and tailor a medication adherence intervention: a randomised controlled trial
  1. Thi-My-Uyen Nguyen,
  2. Adam La Caze,
  3. Neil Cottrell
  1. Pharmacy Australia Centre of Excellence—School of Pharmacy, The University of Queensland, Woolloongabba, Queensland, Australia
  1. Correspondence to Dr Thi-My-Uyen Nguyen; t.nguyen63{at}uq.edu.au

Abstract

Objective To determine if a targeted and tailored intervention based on a discussion informed by validated adherence scales will improve medication adherence.

Design Prospective randomised trial.

Setting 2 community pharmacies in Brisbane, Australia.

Methods Patients recently initiated on a cardiovascular or oral hypoglycaemic medication within the past 4–12 weeks were recruited from two community pharmacies. Participants identified as non-adherent using the Medication Adherence Questionnaire (MAQ) were randomised into the intervention or control group. The intervention group received a tailored intervention based on a discussion informed by responses to the MAQ, Beliefs about Medicines Questionnaire-Specific and Brief Illness Perception Questionnaire. Adherence was measured using the MAQ at 3 and 6 months following the intervention.

Results A total of 408 patients were assessed for eligibility, from which 152 participants were enrolled into the study. 120 participants were identified as non-adherent using the MAQ and randomised to the ‘intervention’ or ‘control’ group. The mean MAQ score at baseline in the intervention and control were similar (1.58: 95% CI (1.38 to 1.78) and 1.60: 95% CI (1.43 to 1.77), respectively). There was a statistically significant improvement in adherence in the intervention group compared to control at 3 months (mean MAQ score 0.42: 95% CI (0.27 to 0.57) vs 1.58: 95% CI (1.42 to 1.75); p<0.001). The significant improvement in MAQ score in the intervention group compared to control was sustained at 6 months (0.48: 95% CI (0.31 to 0.65) vs 1.48: 95% CI (1.27 to 1.69); p<0.001).

Conclusions An intervention that targeted non-adherent participants and tailored to participant-specific reasons for non-adherence was successful at improving medication adherence.

Trial registration number ACTRN12613000162718; Results.

  • medication adherence
  • non-adherence
  • targeted
  • tailored
  • intervention

This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/

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Footnotes

  • Contributors T-M-UN, AL and NC, designed the research and wrote the manuscript. T-M-UN performed the research and analysed the data.

  • Funding This research received no specific grant from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent Obtained.

  • Ethics approval Ethics approval was obtained from the School of Pharmacy Ethics Committee, University of Queensland (approval number 92013/5).

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data sharing statement No additional data are available.