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Published on in Vol 28 (2026)

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/91299, first published .
Elderly man holding a glass of water and medication blister packs.

Medication Adherence Behavior Assessed Using a Digital Bottle Cap: Retrospective Cohort Study

Medication Adherence Behavior Assessed Using a Digital Bottle Cap: Retrospective Cohort Study

Andrzej Nowojewski   1 , PhD ;   Olga Elizarova   2 , DDS ;   Annika Rutgersson   3 , PhD ;   Anna Zarodkiewicz   4 , MPharm ;   Yunyun Jiang   5 , PhD ;   Anneli Olsson   6, 7 , PhD ;   Matthew Kelham   8, 9 , BMBS ;   Jessica Hanson   10, 11 , BSc ;   David Austin   12, 13 , MD, FRCP ;   Daniel A Jones   8, 9 , MD, PhD ;   Ehsan Parvaresh Rizi   14 , MD, PhD ;   Wilhelm Ridderstråle   14 , MD, PhD ;   Jonas Oldgren   15, 16 , MD, PhD ;   Stefan James   15, 16 , MD, PhD ;   Robert F Storey   10, 11 , DM

1 Clinical Pharmacology and Safety Sciences, Biopharmaceutical Research and Development, AstraZeneca, Cambridge, England, United Kingdom

2 Digital Health Oncology Research and Development, AstraZeneca, Waltham, MA, United States

3 Evinova, AstraZeneca, Mölndal, Sweden

4 Clinical Operations, Biopharmaceutical Research and Development, AstraZeneca, Warsaw, Poland

5 Biometrics, Late-stage Development, Cardiovascular, Renal, and Metabolism, BioPharmaceuticals Research & Development, AstraZeneca, Gaithersburg, MD, United States

6 Division of Cardiology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden

7 Department of Cardiology, Skåne University Hospital, Lund, Sweden

8 Department of Cardiology, St Bartholomew's Hospital, London, England, United Kingdom

9 William Harvey Research Institute, Barts & The London Faculty of Medicine & Dentistry, Queen Mary University of London, London, England, United Kingdom

10 Cardiovascular Research Unit, Division of Clinical Medicine, School of Medicine and Population Health, University of Sheffield, Sheffield, England, United Kingdom

11 National Institute for Health and Care Research Sheffield Biomedical Research Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, England, United Kingdom

12 Academic Cardiovascular Unit, The James Cook University Hospital, South Tees NHS Foundation Trust, Middlesbrough, England, United Kingdom

13 Population Health Science Institute, Newcastle University, Newcastle, England, United Kingdom

14 Late-Stage Development, Cardiovascular, Renal, and Metabolism, Biopharmaceutical Research and Development, AstraZeneca, Mölndal, Sweden

15 Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden

16 Department of Medical Sciences, Cardiology, Uppsala University, Uppsala, Sweden

Corresponding Author:

  • Andrzej Nowojewski, PhD
  • Clinical Pharmacology and Safety Sciences
  • Biopharmaceutical Research and Development
  • AstraZeneca
  • 1 Francis Crick Ave
  • Cambridge, England CB2 0AA
  • United Kingdom
  • Phone: 44 02037495000
  • Email: andrzej.nowojewski@astrazeneca.com