Evidence map›Paper›PMID 32548557›Full record

ArticleResearch and practice in thrombosis and haemostasis2020

Self-reported therapy adherence and predictors for nonadherence in patients who switched from vitamin K antagonists to direct oral anticoagulants.

Myrthe M A Toorop, Nienke van Rein, Melchior C Nierman, Helga W Vermaas, Menno V Huisman, Felix J M van der Meer, Suzanne C Cannegieter, Willem M Lijfering

Abstract read
In one paragraph

Article in Research and practice in thrombosis and haemostasis, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–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

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Comparing Efficacy and Safety of Different Anticoagulants in Cerebral Venous Thrombosis: A Systematic Review and Network Meta-Analysis.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
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  13. Rivaroxaban in acute venous thromboembolism: UK prescribing experience.Research and practice in thrombosis and haemostasis · 2021
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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

8 authors.

Myrthe M A TooropDepartment of Clinical Epidemiology Leiden University Medical Center Leiden The Netherlands.ORCID https://orcid.org/0000-0002-3348-2419
Nienke van ReinDepartment of Clinical Pharmacy and Toxicology Leiden University Medical Center Leiden The Netherlands.
Melchior C NiermanThrombosis Service of Amsterdam (Atalmedial) Amsterdam The Netherlands.
Helga W VermaasThrombosis Service of the Hague (LabWest) The Hague The Netherlands.
Menno V HuismanDivision of Thrombosis and Hemostasis Leiden University Medical Center Leiden The Netherlands.
Felix J M van der MeerDivision of Thrombosis and Hemostasis Leiden University Medical Center Leiden The Netherlands.
Suzanne C CannegieterDepartment of Clinical Epidemiology Leiden University Medical Center Leiden The Netherlands.
Willem M LijferingDepartment of Clinical Epidemiology Leiden University Medical Center Leiden The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMany patients who used vitamin K antagonists (VKAs) for long-term prevention of thromboembolism are now actively switched to a direct oral anticoagulant (DOAC). Strict adherence to a DOAC is crucial for its success. However, therapy adherence and clinical factors that predict nonadherence are currently not well studied among patients who switched from a VKA to a DOAC.

methodsA questionnaire was developed and sent to 2920 former patients of 3 anticoagulation clinics in the Netherlands, who switched from a VKA to a DOAC between January 2016 and December 2017. Questions concerned demographics, treatment persistence, adherence, and the occurrence of bleeding or thromboembolic events on DOACs. To identify predictors for nonadherence, logistic regression models were used to estimate crude and age/sex-adjusted odds ratios (ORs) and 95% confidence intervals (95% CIs).

resultsA total of 1399 questionnaires (response rate 48%) were used for analysis. DOAC treatment persistence (94%) and adherence (86%) rates were high. Several predictors of nonadherence were identified, including young age (OR, 5.9; 95% CI, 3.6-9.8 for <60 years compared to >75 years), low consultation frequency with a specialist (OR, 1.6; 95% CI, 1.1-2.2), a history of minor bleeding on DOACs (OR, 1.9; 95% CI, 1.3-2.8), and a twice-daily dosing regimen (OR, 1.9; 95% CI, 1.3-2.6).

conclusionsSelf-reported treatment persistence and adherence were high in our study population, and several predictors of nonadherence were identified. Factors that can be influenced (low consult frequency with medical specialist, daily dosing regimen) may be used to improve therapy adherence.

Indexed as

anticoagulantsantithrombinsfactor Xa inhibitorsmedication adherencepatient compliance

Identifiers

PMID32548557
PMCPMC7292652

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.