Locus of control and anti-hypertensive medication adherence in Ghana

Kretchy, Irene A.; Owusu-Daaku, Frances; Danquah, Samuel A.

doi:10.11604/pamjs.supp.2014.17.1.3433

Cited by 19 publications

(30 citation statements)

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“…We performed meta-analyses for studies using the eight-item Morisky Medication Adherence Scale (MMAS) 10,[16][17][18][19][20] and the 80 and 90% cut-off scales, 11,12,[21][22][23] as the majority of the studies used those methods. The meta-analyses were done separately, as we did not find them comparable according to the measurement of non-adherence being used (detailed questions vs pill counting).…”

Section: Discussionmentioning

confidence: 99%

“…40 Only two of the studies using this method have made a validity test and present a Cronbach's alpha at 0.79 20 and 0.79. 10 The remaining studies had either conducted a pilot study, 18 excluded participants with trouble understanding the questions 17 or referring to the previous validity test from the original development of the questions (Cronbach's alpha = 0.83). 16,19 None of the studies clarified if they had modified the questions according to the setting of their study.…”

Section: Discussionmentioning

confidence: 99%

“…[9][10][11][12][16][17][18][19][20][21][22][23][28][29][30][31][32][33][34][35][36][37] The majority of these studies were from China Nigeria and Malaysia (Table 1). …”

Section: Study Selectionmentioning

confidence: 99%

“…The most frequent methods are pill counting or question-based methods. [8][9][10][11][12] The extent of non-adherence in low-and middle-income countries is expected to be higher than in developed countries due to for example lack of health resources and inequality in access to health care; 6 these elements seem to increase the impact of both hypertension and non-adherence. Hypertension and non-adherence constitute a large burden to health care systems in low-and middle-income countries, as the consequences of non-adherence are not only poor health outcome, but also increased health care costs.…”

Section: Introductionmentioning

confidence: 99%

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Non-adherence to anti-hypertensive medication in low- and middle-income countries: a systematic review and meta-analysis of 92443 subjects

Nielsen¹,

Shrestha

Neupane³

et al. 2016

J Hum Hypertens

133

132

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Hypertension is a rising global burden, and low- and middle-income countries account for 80% of deaths due to complications of hypertension. Hypertension can be controlled by adhering to anti-hypertensive medication. However, non-adherence is an increasing challenge. This review aims to systematically evaluate non-adherence to anti-hypertensive medication among adults in low- and middle-income countries and explore factors affecting non-adherence to anti-hypertensive medication. We performed a systematic search for studies published between 1 January 2000 and 31 August 2015. A selection process was performed for data extraction with a combination of Medical Subject Headings terms: 'hypertension' and 'adherence'. Further search criteria were: language ('english'), species ('humans'), and low- and middle-income countries. A total of 22 studies met the inclusion criteria. The pooled percentage of non-adherence when using the eight-item Morisky Medication Adherence Scale (MMAS) was 63.35% (confidence of interval (CI): 38.78-87.91) and 25.45% (CI:17.23-33.76) when using the 80 and 90% cut-off scales. The factors were classified into the five dimensions of adherence defined by the World Health Organization, and the majority of the studies reported factors from the dimension 'social and economic factors'. This systematic review demonstrated considerable variation of non-adherence to anti-hypertensive medication in low- and middle-income countries depending on the methods used to estimate non-adherence. The results showed a high non-adherence when the MMAS eight-item scale was used and low when the 80 and 90% cut-off scales were used. The majority of factors affecting non-adherence to anti-hypertensive medication fell within the World Health Organization defined dimension 'social and economic factors'.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…[9][10][11][12][16][17][18][19][20][21][22][23][28][29][30][31][32][33][34][35][36][37] The majority of these studies were from China Nigeria and Malaysia (Table 1). …”

Section: Study Selectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Non-adherence to anti-hypertensive medication in low- and middle-income countries: a systematic review and meta-analysis of 92443 subjects

Nielsen¹,

Shrestha

Neupane³

et al. 2016

J Hum Hypertens

133

132

View full text Add to dashboard Cite

show abstract

“…From examining Table 1.2, it can be seen that the internal locus of control subscale is associated with better medication adherence in studies conducted in individuals with diabetes, 196,208 HIV, 197,210 hypertension, [213][214][215] chronic kidney disease 204 and schizophrenia. 216 These studies support the theory that those with strong internal locus of control beliefs exhibit healthier behaviours by adhering to their medicine.…”

Section: Relationship Between Locus Of Control Beliefs and Adherencementioning

confidence: 99%

Exploring the relationship between health beliefs and medication adherence in individuals with asthma

Foot¹,

Caze²,

Gujral³

et al.

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In individuals with asthma, non-adherence to inhaled corticosteroids contributes to increased exacerbations, healthcare utilisation and mortality. Understanding the beliefs an individual holds about their medicines, illness and about the controllability of their health provides a promising way to better understand non-adherence in individuals with chronic conditions. Research to date has focussed on bivariate relationships between a specific set of beliefs and medication adherence. This approach simplifies the complex, multifaceted nature of medication adherence. I suggest that investigating how different beliefs associate with medication adherence in a multivariable model may improve understanding of adherence decisions.The aim of the thesis is to investigate the relationship between beliefs about medicines, illness perceptions and locus of control beliefs with self-reported medication adherence in individuals with asthma.The first part of the thesis was to identify whether beliefs about medicines, elicited through the Beliefs about Medicines Questionnaire (BMQ), were correlated to medication adherence on a population level. The BMQ consists of two scales that seek to elicit an individual's beliefs in the necessity and concerns of taking medication. Necessity beliefs reflect medicines being protective of current and future health and concern beliefs reflect beliefs about the negative effects of medicines. Beliefs about medicines are thought to play a key role in medication-taking, but inconsistent results across different conditions and different measures of adherence makes it difficult to conclude the size of the effect at a population level. A meta-analysis was conducted to identify whether beliefs in the necessity and concerns of medicines, were significantly correlated with medication adherence across different conditions. An electronic search was conducted for manuscripts comparing scores from the BMQ to measures of medication adherence. Studies were pooled using the random-effects model to produce a mean effect size correlation. Studies were stratified for condition, adherence measure, power and study design. Ninety-four papers were included and the overall effect size correlation was 0.17 for necessity and -0.18 for concerns (p<0.0001). Necessity and concerns beliefs were correlated with medication adherence on a population level and across the majority of included conditions. The effect sizes were small with a magnitude comparable to other predictors of adherence. Exploring the role of beliefs outside the Beliefs about Medicines Framework may improve prediction and understanding of medication adherence.A cross-sectional study was conducted to explore the relationship between measures of health beliefs and medication adherence in individuals with asthma. A total of 198 participants using a preventative asthma inhaler for three or more months were recruited from two community pharmacies and via iii online advertisement. Each participant completed a survey of validated questionnaires consisting of:...

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Prevalence and determinants of medication adherence among patients taking antihypertensive medications in Africa: A systematic review and meta‐analysis 2010–2021

Shin

Konlan

2023

Nursing Open

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Aim This study synthesized the prevalence and determinants of hypertension medication adherence. Design Systematic review and meta‐analysis through systematic search in PUBMED, EMBASE, CINAHL, Cochrane library and Google Scholar, from 2010 to 2021. Methods Screening was conducted and reported according to PRISMA criteria, and ten studies identified according to predetermined criteria. The studies were evaluated using the Mixed Method Appraisal Tool. Analysis was done using the narrative synthesis method. Prevalence data were examined using random effects meta‐analysis in Comprehensive Meta‐Analysis version 3. Results The overall prevalence of medication adherence was 34.1%, and determinants of medication adherence were the ability to attain hypertension control; hypertension knowledge; and treatment‐related factors including belief of the drug efficacy, having commodities, sociocultural and financial‐related factors. It is imperative to develop, test and use a comprehensive hypertension medication adherence tool that is culturally congruent to Africa.

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Locus of control and anti-hypertensive medication adherence in Ghana

Cited by 19 publications

References 0 publications

Non-adherence to anti-hypertensive medication in low- and middle-income countries: a systematic review and meta-analysis of 92443 subjects

Non-adherence to anti-hypertensive medication in low- and middle-income countries: a systematic review and meta-analysis of 92443 subjects

Exploring the relationship between health beliefs and medication adherence in individuals with asthma

Prevalence and determinants of medication adherence among patients taking antihypertensive medications in Africa: A systematic review and meta‐analysis 2010–2021

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