Abstract：
:There is no patient-reported medication adherence measure that has been validated in Singapore. This study aimed to validate the 8-item Morisky Medication Adherence Scale (MMAS) in patients taking warfarin in Singapore. A cross-sectional survey was conducted in a convenience sample of 151 patients taking warfarin at an anticoagulation clinic in 2011. Respondents completed the MMAS in English or Chinese depending on their preference. The MMAS had a Cronbach's alpha of 0.56 and good criterion-related validity as the scale scores were associated with warfarin refill rates (p = 0.04). Respondents with higher MMAS scores were found to have a higher percentage of International Normalised Ratios (INRs) within the therapeutic range (p = 0.01), higher adherence to diet recommendations (p = 0.02), and less perceived difficulty in taking all medications (p < 0.001); they were also more likely to take warfarin at the same time every day (p < 0.001). Confirmatory factor analysis showed that the eight items loaded onto one factor (RMSEA = 0.03). The sensitivity, specificity, positive predictive value and negative predictive value of the MMAS for identifying patients with poor INR control were 73.0%, 35.6%, 49.5% and 60.5%, respectively, using the time in the therapeutic INR range as the gold standard. This study shows that the 8-item MMAS has good validity and moderate reliability in patients taking warfarin. Future research is needed to investigate the scale's psychometric properties in other patient populations and clinical settings.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Wang Y,Kong MC,Ko Ydoi
10.1160/TH12-05-0368subject
Has Abstractpub_date
2012-10-01 00:00:00pages
789-95issue
4eissn
0340-6245issn
2567-689Xpii
12-05-0368journal_volume
108pub_type
杂志文章abstract：:Tissue factor (TF) is the blood coagulation initiator, whose cofactor function is required for physiological factor VIIa (FVIIa)-mediated activation of factor X (FX) to FXa. A previous study reported TF on herpes simplex virus type 1 (HSV1), but this explained only part of FVIIa-dependent FXa generation observed on th...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH04-04-0242
更新日期：2004-11-01 00:00:00
abstract：:Monoclonal antibodies to human fibrin have been prepared from stable hybridomas, obtained by fusion of a mouse myeloma cell line (NS-1) and spleen cells of Balb/c mice immunized with a suspension of human fibrin. One cell line, DG1, producing a monoclonal antibody of the IgG1, kappa subclass, reacted specifically with...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1988-06-16 00:00:00
abstract：:Plasma levels of D-dimer have been found useful as a marker of deep venous thrombosis in those patients in whom thrombosis is suspected, but their usefulness in postoperative screening is less clear. We have investigated the relationship of D-dimer to deep venous thrombosis in 90 patients after total hip and knee arth...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1994-11-01 00:00:00
abstract：:The urinary excretion rate of antithrombin III related antigen (AT III RA) was examined in cerebral stroke. The excretion rate of AT III RA in cerebral hemorrhage (CH) was 12.33 +/- 1.61 X 10(-4) ml/min. The patients with CH were further classified into two groups: in group CH-I, whose consciousness state was stupor o...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1984-12-29 00:00:00
abstract：:The acidic mucopolysaccharide extracted from sea cucumber (Stichopus japonicus Selenka) (SJAMP) has been shown to cause platelets to aggregate. Using citrated platelet-rich plasma (PRP), washed platelets and formaldehyde-fixed platelets from humans, we investigated the effects of platelet inhibitors and various plasma...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1988-06-16 00:00:00
abstract：:We tested different types of clot for their ability to provoke procoagulant activity in platelets: normal clots from platelet poor plasma (des AABB- or fibrin II clots), similar clots in which the adsorbed thrombin has been inhibited by hirudin, and clots obtained by the action of two snake venom enzymes that release ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1995-09-01 00:00:00
abstract：:The prevalence of coagulation disorders in patients with upper extremity deep-vein thrombosis (UE-DVT) is unknown due to only a few observational studies of limited size reporting varying results. Therefore, we aimed to evaluate the prevalence of thrombophilia in patients with UE-DVT compared to patients with lower ex...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2008-09-01 00:00:00
abstract：:[This corrects the article DOI: 10.1160/TH14-06-0547.]. ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,已发布勘误
doi：10.1160/TH17040001
更新日期：2017-04-03 00:00:00
abstract：:Tissue factor is a cellular receptor that initiates blood coagulation. The TF gene is constitutively expressed in some extravascular cell types and is inducibly expressed in several vascular cell types, including monocytes, vascular endothelial cells and vascular smooth muscle cells. Functional studies indicate that S...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：1997-07-01 00:00:00
abstract：:A method is described for increasing the sensitivity of the thiobarbiturate assay for malondialdehyde by concentrating the coloured reaction product. The basal level of malondialdehyde-like material in plasma was found to be about 0.03 micrometer. Platelets synthesized malondialdehyde when stimulated by collagen or th...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1977-12-15 00:00:00
abstract：:Von Willebrand factor (vWF) is synthesized by human endothelial cells and megakaryocytes as a large precursor, the pre-provWF, which is finally cleaved into the propolypeptide of vWF (pp-vWF) and the mature vWF. We have purified in parallel the pp-vWF and the GP IIb-IIIa from porcine platelets. The N-terminus comparat...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1998-10-01 00:00:00
abstract：:The administration of recombinant activated factor VII (rFVIIa) by continuous infusion has provided a safe and convenient alternative to bolus injections in haemophiliacs with inhibitors, but it has only been reported in a single case with congenital factor VII (FVII) deficiency. The results of 12 consecutive surgical...
journal_title：Thrombosis and haemostasis
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1160/TH05-05-0342
更新日期：2005-12-01 00:00:00
abstract：:The fibrinolytic capacity of 121 patients with a history of venous thrombosis and/or pulmonary embolism was studied by venous occlusion technique, at earliest 3 months after the last thromboembolic episode. After discontinuation of oral anticoagulation treatment the clinical course of the patients was followed and new...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1984-10-31 00:00:00
abstract：:Thirty-one non-hemophilic patients with acquired antibodies to factor VIII were entered into a prospective, randomized, multi-institutional trial to determine the safety and efficacy of prednisone (P), cyclophosphamide (C), or the combination in the treatment of this disorder. Patients were eligible if they had antibo...
journal_title：Thrombosis and haemostasis
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：
更新日期：1993-11-15 00:00:00
abstract：:The evidence is reviewed and a model presented for two distinct receptors being involved in platelet activation induced by alpha-thrombin: a high affinity thrombin receptor constituting approximately 50 copies of a supercomplexed form of GPIb coupled to phospholipase A2 and a moderate affinity receptor constituting ap...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：1997-07-01 00:00:00
abstract：:It was the study objective to determine whether glycaemic control affects the extent of platelet inhibition by thienopyridines as assessed by vasodilator-stimulated phosphoprotein flow cytometry (VASP-FCT) in patients with diabetes mellitus (DM) undergoing percutaneous coronary intervention (PCI) during acute coronary...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH11-12-0876
更新日期：2012-08-01 00:00:00
abstract：OBJECTIVE:To look for an association between venous thromboembolism (VTE) and antiphospholipid antibodies (aPL) in patients without Systemic Lupus Erythematosus (SLE) when implementing, beside conventional assays, new tests for aPL screening directed towards purified proteic targets. METHODS:We conducted a cross-secti...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2001-08-01 00:00:00
abstract：:In proliferative retinopathies, like proliferative diabetic retinopathy and retinopathy of prematurity (ROP), the hypoxia response is sustained by the failure of the retina to revascularise its ischaemic areas. Non-resolving retina ischaemia/hypoxia results in upregulation of pro-angiogenic factors and pathologic neov...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH15-01-0051
更新日期：2015-11-25 00:00:00
abstract：:We studied exercise-induced changes in coagulation and fibrinolytic factors and activation products in different age categories. Thirty-eight sedentary males, divided in three age categories (cats I-III; 20-30, 35-45 and 50-60 y) were subjected to a standardized exercise test. Pre-exercise levels (cats I-III resp) of ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1995-12-01 00:00:00
abstract：:Vitamin K-dependent protein S is a cofactor to the anticoagulant serine protease activated protein C (APC) in the proteolytic inactivation of the procoagulant, activated factor V (FVa) and factor VIII (FVIIIa). In the FVa degradation, protein S selectively accelerates the cleavage at Arg306, having no effect on the Ar...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2000-08-01 00:00:00
abstract：:Tissue factor (TF) plays a critical role in tumour growth and metastasis, and its enhanced release into plasma in association with cellular microparticles (MPs) has recently been associated with pathological cancer progression. We have previously demonstrated significantly elevated levels of plasma TF antigen as well ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2009-06-01 00:00:00
abstract：:A new method to determine the concentration of free protein S in plasma is described. It is an enzyme-linked ligandsorbent assay (ELSA) which utilises the protein S binding capacity of the natural ligand C4b-binding protein (C4BP) to capture the free protein S from plasma samples. The use of C4BP as ligand in the assa...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1998-04-01 00:00:00
abstract：BACKGROUND:Patients undergoing surgery for cancer are at high risk for venous thromboembolism (VTE). Agents that selectively inhibit thrombin, such as dermatan sulphate, have potential for a favourable benefit-risk ratio in the prevention of this complication. METHODS:Patients scheduled for elective abdominal, thoraci...
journal_title：Thrombosis and haemostasis
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1999-07-01 00:00:00
abstract：:Enhanced adhesion of sickle erythrocytes to the vascular endothelium and subendothelial matrix is fundamental to the development of vascular occlusion in sickle cell disease. Erythrocyte membrane sulfatide is implicated in the pathogenesis of vasoocclusive crises in sickle cell disease (SCD) patients. Because previous...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH10-11-0716
更新日期：2011-06-01 00:00:00
abstract：:The cofactor tetrahydrobiopterin (BH4) is required for nitric oxide (NO) production by all nitric oxide synthase (NOS) enzymes and is a key regulator of cellular redox signalling. When BH4 levels become limiting NOS enzymes become 'uncoupled' and produce superoxide rather than NO. Endothelial cell BH4 is required for ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：10.1160/TH12-06-0424
更新日期：2012-11-01 00:00:00
abstract：:Heparin-associated thrombocytopenia (HAT) is a severe complication of heparin therapy. Its diagnosis is difficult. Conventional assays employ platelet aggregometry (PAA) and/or 14C-serotonin release (SRA) which are either insensitive (PAA) or require radioactive tracers (SRA). We here describe a newly developed sensit...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1991-12-02 00:00:00
abstract：:Although there is evidence that altitude increases the platelet count, its effect on the platelet precursor stimulating factor, thrombopoietin (TPO), is unclear. Unlike erythropoietin, TPO appears largely unresponsive to exogenous signals. In a study in 16 healthy volunteers, we report the effects of altitude exposure...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH04-02-0086
更新日期：2005-01-01 00:00:00
abstract：:We have studied effects of the solvent composition on the activity and the conformation of human plasminogen activator inhibitor-1 (PAI-1) from HT-1080 fibrosarcoma cells. Non-ionic detergents, includine Triton X-100, reduced the inhibitory activity of PAI-1 more than 20-fold at 0 degrees C, but less than 2-fold at 37...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1999-03-01 00:00:00
abstract：:Platelets play an important role in diseases such as cardiovascular disease and cancer, especially through their release of extracellular vesicles (EVs) and role in thrombosis. The effects of the anti-inflammatory drug colchicine on platelets are not well understood. We investigated the effect of colchicine on the rel...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1055/s-0038-1636915
更新日期：2018-04-01 00:00:00
abstract：:It is conceivable that the extent and spatio-temperal expression of dozens or even a few hundred genes are significantly altered during the development and progression of atherosclerosis as compared to normal circumstances. Differential gene expression in vascular cells and in blood cells, due to gene-gene and gene-en...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：2001-07-01 00:00:00
