Validity evidence of adapted hausa version of 8-item Marisky Medication Adherence Scale in patients with hypertension in North Western Nigeria
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Date
2018
Journal Title
Journal ISSN
Volume Title
Publisher
Bayero University, Kano.
Abstract
Adherence to antihypertensive medication is the cornerstone for achieving hypertension
control. Morisky Medication Adherence Scale (MMAS-8) is one of the most widely used
reported medication adherence measures. The aim of this study was to examine the
evidence of the validity of adapted Hausa MMAS in assessing adherence among
hypertensive patients in North Western Nigeria. In a longitudinal interventional study of
individuals with hypertension, self reported adherence to the antihypertensive drug
treatment was measured using the Morisky Medication Adherence Scale
consistency of the Morisky Medication Adherence Scale-8 with crobanch's alpha
factorial validity was assessed by identifying the underlying components using principal
component analyses (PCA). A total of 130 individuals completed the study. Cronbach’s alpha
was 0.79. Two components were identified. One component comprised six items: stopping
medication when hypertension is under control, stopping when feeling hassled about sticking
to the prescription. The second component comprised two other items that were all related
to forgetfulness. A significant relationship between MMAS and diastolic blood pressure
control (t = 2.2; p = .030), (χ2 = 6.6; p = .036) was found. The MMAS sensitivity and
specificity, with positive and negative predictive values were 36%, 77%, 64%, and 52%
respectively. The results suggest that the adapted Hausa Morisky Medication Adherence
Scale-8 is a two-dimensional scale assessing intentional (first component) and unintentional
(second component) non-adherence to the antihypertensive drug treatment. The findings of
this validation study indicate that the Hausa version of the MMAS is a reliable and valid
measure of medication adherence among hypertensive patients in North-western Nigeria.
Description
Keywords
Adherence, Hypertension, MMAS-8, Validation
Citation
3. Labaran KS, Mohammed S, Maiha BB, Giwa A, Maaji HU, Yusuf H, Ibrahim AW (2018): Validity evidence of adapted hausa version of 8-item Marisky Medication Adherence Scale in patients with hypertension in North Western Nigeria. Journal of Pure and Applied Science. 11(1); 244-250, Published by Bayero University, Kano.