Trial reportJournal of thrombosis and thrombolysis2013
Comparison of three medication adherence measures in patients taking warfarin.
Trial report in Journal of thrombosis and thrombolysis, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
Who cites it
15 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Quality of measurement properties of medication adherence instruments in cardiovascular diseases and type 2 diabetes mellitus: a systematic review and meta-analysis.Systematic reviews · 2023Pooled it
- Adherence to home fortification with micronutrient powders in Kenyan pre-school children: self-reporting and sachet counts compared to an electronic monitoring device.BMC public health · 2018Trial
- The anti-clot treatment scale (ACTS): validation of the translated Arabic version among patients undergoing warfarin therapy in Saudi Arabia.Health and quality of life outcomes · 2020Article
- Predictors of self-reported adherence to direct oral anticoagulation in a population of elderly men and women with non-valvular atrial fibrillation.Journal of thrombosis and thrombolysis · 2018Article
- Validation of knowledge and adherence assessment tools among patients on warfarin therapy in a Saudi hospital anticoagulant clinic.International journal of clinical pharmacy · 2018Article
- Comparison of home fortification with two iron formulations among Kenyan children: Rationale and design of a placebo-controlled non-inferiority trial.Contemporary clinical trials communications · 2017Article
- Association Between Patient-Reported Medication Adherence and Anticoagulation Control.The American journal of medicine · 2017Article
- Factors influencing medication knowledge and beliefs on warfarin adherence among patients with atrial fibrillation in China.Patient preference and adherence · 2017Article
- Adherence in outpatients taking warfarin and its effect on anticoagulation control in Jordan.International journal of clinical pharmacy · 2016Article
- Effect of Adherence to Oral Anticoagulants on Risk of Stroke and Major Bleeding Among Patients With Atrial Fibrillation.Journal of the American Heart Association · 2016Article
- Patient adherence to warfarin therapy and its impact on anticoagulation control.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2016Article
- Article
- Adherence to warfarin treatment among patients with atrial fibrillation.Clinical research in cardiology : official journal of the German Cardiac Society · 2014Article
- Knowledge and information levels and adherence to oral anticoagulant therapy with warfarin in patients attending primary health care services.Jornal vascular brasileiroArticle
- Translation, Pilot Psychometric Validation, and Comparative Performance of the Arabic Version of the Anti-Clot Treatment Scale (ACTS).Journal of pharmacy & bioallied sciencesArticle
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In order to improve warfarin adherence, we must first know the rate of non-adherence and the reasons for it. Assessment of warfarin adherence is important in improving patients' warfarin-taking behavior and International Normalized Ratio (INR) control. This study aimed to compare three medication adherence measures in patients taking warfarin: the 8-item Morisky Medication Adherence Scale (MMAS), the 100-point Visual Analogue Scale (VAS) and medication refill adherence (MRA). A cross-sectional observational study was conducted in a convenience sample of 174 patients taking warfarin at an anticoagulation clinic. A survey questionnaire that included the MMAS, VAS, and demographic and warfarin-related clinical questions was administered to patients in English or Chinese depending on their preferences. The MRA and INR values were retrieved from hospital electronic databases. Most participants were adherent to warfarin as indicated by the three measures. A weak association was found between the MMAS and the other two adherence measures. The MMAS and MRA were associated with the percentage of INRs within range in the past 2 weeks. Moreover, the MRA was weakly associated with time within the therapeutic INR range in the past 3 months and 2 weeks. The findings provide insights into the differences among three medication adherence measures and may assist healthcare providers to select the most suitable measure for the assessment of warfarin adherence.
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Registered trials
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.