Please use this identifier to cite or link to this item:
|dc.title||Psychometric properties of the 8-item Morisky Medication Adherence Scale in patients taking warfarin|
|dc.identifier.citation||Wang, Y., Kong, M.C., Ko, Y. (2012-09). Psychometric properties of the 8-item Morisky Medication Adherence Scale in patients taking warfarin. Thrombosis and Haemostasis 108 (4) : 789-795. ScholarBank@NUS Repository. https://doi.org/10.1160/TH12-05-0368|
|dc.description.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. © Schattauer 2012.|
|dc.subject||Morisky medication adherence scale|
|dc.description.sourcetitle||Thrombosis and Haemostasis|
|Appears in Collections:||Staff Publications|
Show simple item record
Files in This Item:
There are no files associated with this item.
checked on Jul 13, 2020
WEB OF SCIENCETM
checked on Jul 13, 2020
checked on Jul 12, 2020
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.