Evidence map›Paper›PMID 35896043›Full record

ArticleBritish journal of clinical pharmacology2023

Primary nonadherence to drugs prescribed by general practitioners: A Dutch database study.

Mirjam Hempenius, Simone Rijken, Rolf H H Groenwold, Karin Hek, Anthonius de Boer, Olaf H Klungel, Helga Gardarsdottir

Abstract read
In one paragraph

Article in British journal of clinical pharmacology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Article
  2. Adherence to oral thromboprophylaxis in atrial fibrillation: an overview for clinicians.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2025
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Non-dispensed prescriptions - A nationwide descriptive study.Exploratory research in clinical and social pharmacy · 2024
    Article
  9. Not obtaining a medication the first time it is prescribed: primary non-adherence to cardiovascular pharmacotherapy.Clinical research in cardiology : official journal of the German Cardiac Society · 2024
    Review
  10. Article
  11. Article
  12. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Mirjam HempeniusDivision of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.ORCID 0000-0003-0223-4815
Simone RijkenDivision of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.
Rolf H H GroenwoldDepartment of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands.ORCID 0000-0001-9238-6999
Karin HekDepartment of Integrated Primary Care, Netherlands Institute for Health Services Research, Utrecht, The Netherlands.ORCID 0000-0001-9551-1564
Anthonius de BoerDivision of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.ORCID 0000-0002-9485-8037
Olaf H KlungelDivision of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.ORCID 0000-0002-5604-813X
Helga GardarsdottirDivision of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.ORCID 0000-0001-5623-9684

Funding

Netherlands Organization for Scientific Research ZonMW-Vidi project 917.16.430
6 · The paper itself

Abstract

aimPrimary nonadherence (PNA) is defined as not filling the first prescription for a drug treatment. PNA can lead not only to poor patient outcomes but also to exposure misclassification in written prescription databases. This study aims to estimate PNA in primary care in the Netherlands and to investigate associated factors.

methodsPatients from the Nivel Primary Care Database (Nivel-PCD) who received a new prescription (>1 year not prescribed) from a general practitioner in 2012 were linked to pharmacy dispensing information of consenting pharmacies based on sex, year of birth, four-digit postal code and at least 50% matching Anatomical Therapeutic Classification codes. PNA was defined as not having a prescription dispensed within 30 days from the prescribing date. PNA was assessed overall and per drug class. The associations between PNA and several patient- and prescription-related characteristics were assessed using mixed-effects logistic regression models.

resultsAfter matching 86 361 of 396 251 subjects (21.8%) in the Nivel-PCD records to the pharmacy records, this study included 65 877 subjects who received 181 939 new drug prescriptions. Overall, PNA was 11.5%. PNA was lowest for thyroid hormones (5.5%) and highest for proton pump inhibitors (12.8%). Several factors were associated with PNA, such as having comorbidities (odds ratio [OR] 1.46, 95% confidence interval [CI] 1.37-1.56 for >3 active diagnoses, compared to no active diagnoses) or reimbursement status (OR 2.78, 95% CI 2.65-2.92 for not reimbursed drugs compared to fully reimbursed drugs).

conclusionsA total of 11.5% of newly prescribed drugs were not dispensed. This can lead to overestimation of the actual drug exposure status when using written prescription databases.

Indexed as

General PractitionersPharmaceutical ServicesPharmaciesDrug PrescriptionsHumansLogistic Modelsadherencemethodologyprimary carestatistics and study design

Identifiers

PMID35896043
PMCPMC10087833

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