Treatment of venous thromboembolism with vitamin K antagonists: patients' health state valuations and treatment preferences
Open accessAbstract
Summary: Determining the optimal duration of vitamin K antagonist (VKA) therapy for patients with venous thromboembolism (VTE) requires a weighting of the benefits and risks of treatment. The objectives of our study were to investigate patient variability in health state valuations associated with VKA therapy and treatment preferences, and to investigate the extent to which valuations and treatment preferences are associated with prior experience with these health states and other patient characteristics. Valuations of outcomes after VTE scaled from 0 (tantamount to death) to 1 (tantamount to perfect health) were elicited from 53 patients who had experienced VTE, 23 patients who had experienced major bleeding during treatment, and 48 patients with the post-thrombotic syndrome. In addition, patients’ treatment preferences were evaluated using treatment trade-off questions. Median health state valuations ranged from 0.33 for ‘non-fatal haemorrhagic stroke’ to 0.96 for ‘no VKA treatment’. Variability between patients was substantial. Patients’ treatment preferences also varied: 25% of patients chose cessation of treatment, regardless of the probability of recurrent VTE presented, whereas 23% of patients were never willing to choose cessation of treatment. Differences in valuations and treatment preferences were not associated with type of event experienced. Due to the substantial and unpredictable variability in valuations and treatment preferences, recommendations regarding treatment duration should be tailored to patients’ specific values and concerns.
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Patients placed a high value on the benefits of risk reduction in VTE recurrence and PTS.
“Patients placed a high value on the benefits of risk reduction in VTE recurrence and PTS. 311”
From American Society of Hematology 2020 guidelines for management of venous thromboembolism: treatment of deep vein thrombosis and pulmonary embolism (2020) · cites this paper as [311]
The Treatment preferences section shows that some patients favored continued treatment to reduce recurrent VTE risk, but preferences varied substantially; 25% chose cessation regardless of the recurrence risk presented. The Discussion reports a median health-state value of 0.82 for post-thrombotic syndrome (PTS), but the paper did not assess how patients valued a reduction in PTS risk. The claim overgeneralizes the VTE finding and extends it to PTS risk reduction. (LLM, conf=0.84)
Experimental — accuracy not yet measured
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
The citation lists haven’t been fetched yet
References 28 · Cited by 91
Research works printed but not linked: 22
- Stiggelbout AM, de Haes JCJM. Patient pref- erence for cancer therapy: An overview of measurement approaches. J Clin Oncol 2001; 19: 220-30.
- Gage BF, Cardinalli AB, Owens DK. The effect of stroke and stroke prophylaxis with aspirin or warfarin on quality of life. Arch Intern Med 1996; 156: 1829-36.
- Protheroe J, Fahey T, Montgomery AA, et al. The impact of patients' preferences on the treatment of atrial fibrillation: observational study of patient based decision analysis. Br Med J 2000; 320: 1380-4.
- Thomson R, Parkin D, Eccles M, et al. Decision analysis and guidelines for anticoag- ulant therapy to prevent stroke in patients with atrial fibrillation. Lancet 2000; 355: 956-62.
- Robinson A, Thomson R, Parkin D, et al. How patients with atrial fibrillation value different health outcomes: a standard gamble study. J Health Serv Res Policy 2001; 6: 92-8.
- O'Meara JJ, McNut RA, Evans AT, et al. A decision analysis of streptokinase plus heparin as compared with heparin alone for deep-vein thrombosis. N Engl J Med 1994; 330: 1864-9.
- Lenert LA, Soetikno RM. Automate computer interviews to elicit utilities: Potential applica- tion in the treatment of deep venous thrombo- sis. JAMIA 1997; 4: 49-56.
- Devereaux PJ, Anderson DR, Gardner MJ, et al. Differences between perspectives of physicians and patients on anticoagulation in patients with atrial fibrillation: observational study. Br Med J 2001; 323: 1-7.
- Brandjes DPM, Heijboer H, Büller HR, et al. Randomised trial of effect of compression stockings in patients with symptomatic pro- ximal-vein thrombosis. Lancet 1997; 349: 759-62.
- Torrance GW. Measurement of health state utilities for economic appraisal: A review. J Health Econ 1986; 5: 1-30.
- Merlino LA, Bagchi I, Taylor T, et al. Preferences for fractures and other glucocorti- coid-associated adverse effects among rheu- matoid arthritis patients. Med Decis Making 2001; 21: 122-32.
- Swan JS, Fryback DG, Lawrence WF, et al. A time-tradeoff method for cost-effectiveness models applied to radiology. Med Decis Making 2000; 20: 79-88.
- Torrance GW. Social preferences for health states: an empirical evaluation of three meas- urement techniques. Socio-Econ Plan Sci 1976; 10: 129-36.
- Siegel S, Castellan NJ. Non-parametric statis- tics for the behavioral sciences. 2nd ed. New York: McGraw-Hill Book Company; 1988.
- Post PN, Stiggelbout AM, Wakker PP. The utility of health states after stroke. A systemat- ic review of the literature. Stroke 2001; 32: 1425-9.
- Bleichrodt H. A new explanation for the dif- ference between time trade-off utilities and standard gamble utilities. Health Econ 2002; 11: 447-56.
- Dolan P, Roberts J. To what extent can we explain time trade-off values from other infor- mation about respondents? Soc Sci Med 2002; 54: 919-29.
- de Boer AG, Stalmeier PF, Sprangers MA, et al. Transhiatal vs extended transthoracic resection in oesophageal carcinoma: patients' utilities and treatment preferences. Br J Cancer 2002; 86: 851-7.
- Doyal L. Sex, gender and health: the need for a new approach. Br Med J 2001; 323: 161-3.
- Kohler MP. Risk-taking behavior: a cognitive approach. Psychol Rep 1996; 78: 489-90.
- Horne, R. Patients' beliefs about treatment: the hidden determinant of treatment outcome? J Psychosom Res 1999; 47: 491-5.
- Howitt A, Armstrong D. Implementing evi- dence based medicine in general practice: audit and qualitative study of antithrombotic treatment for atrial fibrillation. Br Med J 1999; 318: 1324-7.
- Authors
- Bossuyt, P., Stalmeier, P., Sprangers, M., van Dongen, C., Middeldorp, S., Bank, I., van der Meer, J., Hamulyák, K., Prins, M., & Locadia, M.
- Affiliations
- Amsterdam UMC Location University of Amsterdam (NL)
- Radboud University Nijmegen (NL)
- Maastricht University Medical Centre (NL)
- Corresponding author
- Locadia, Mirjam
- Venue
- Thrombosis and Haemostasis
- Publisher
- Georg Thieme Verlag KG
- Published
- 2004
- Volume
- 92
- Issue
- 12
- Pages
- 1336-1341
- ISSN
- 0340-6245 (ISSN-L)
- 2567-689X
- OpenAlex
- W2082315647
- Cited by
- 91
- References
- 28
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 2 · 2023: 4 · 2022: 4 · 2021: 6 · 2020: 7 · 2019: 6 · 2018: 7 · 2017: 8 · 2016: 8 · 2015: 5 · 2014: 4 · 2013: 7 · 2012: 9
- FWCI
- 0.26
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Thrombosis and Haemostasis (publishedVersion)
- PubMed (publishedVersion)
- Data Archiving and Networked Services (DANS) (submittedVersion)
- Pure Amsterdam UMC (submittedVersion)
- Radboud Repository (Radboud University) (submittedVersion)
- Funders
- Netherlands Heart Foundation (NHF-99-172)
- Topics
- Health Sciences › Medicine › Internal Medicine › Venous Thromboembolism Diagnosis and Management
- Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Health Systems, Economic Evaluations, Quality of Life
- Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Economic and Environmental Valuation
- Keywords
- venous thromboembolism, vitamin K antagonists, health state valuation, treatment preferences, treatment duration, post-thrombotic syndrome, major bleeding, patient heterogeneity, patient-centered care
- MeSH terms
- Adult, Aged, Aged, 80 and over, Anticoagulants, Attitude to Health, Female, Health, Health Status Indicators, Humans, Male, Middle Aged, Quality of Life, Thromboembolism, Vitamin K, Venous Thrombosis
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review