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      Barriers of medication adherence in patients with type-2 diabetes: a pilot qualitative study

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          Abstract

          Background: Patients with type-2 diabetes have poor adherence to the therapeutic regime. It can result in various complications in body systems associated with undesirable metabolic control.

          Purpose: The present study aimed to explore the inhibitors of medication adherence in patients with type-2 diabetes.

          Patients and methods: This was a qualitative study using a conventional content analysis method. Participants were 12 patients with type-2 diabetes referred to the diabetes unit in Saghez, Kurdistan Province in 2015. The purposive sampling method was used with a maximum variation in sampling, and data collection was continued until data saturation was achieved. Semi-structured interviews were used for data collection. Interviews were recorded and immediately transcribed verbatim.

          Results: Data analysis led to the development of four main categories including disbelief in medical explanatory/prescriptive knowledge, lived experiences of the disease, challenges of everyday life, and interactive/economic challenges. The main inhibitors were the patient’s understanding of his/her own physical status and strategies used for maintaining the internal balance. Healthcare providers need to take patients’ perceptions into account when they are prescribing medicinal diets. Another inhibitor was the incidents of everyday life, including economic and social challenges, and interactions to receive education and skills for living with the disease.

          Conclusion: Beliefs of the medical team and patients should be brought closer to each other, and patients’ trust in the medical team should be increased. Nurses should consider the unique experience of every patient when giving healthcare recommendations, and try to limit the existing challenges as much as possible.

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          Influence of patients’ disease knowledge and beliefs about medicines on medication adherence: findings from a cross-sectional survey among patients with type 2 diabetes mellitus in Palestine

          Background Diabetes mellitus (DM) is a common serious health problem. Medication adherence is a key determinant of therapeutic success in patients with diabetes mellitus. The purpose of this study was to assess medication adherence and its potential association with beliefs and diabetes – related knowledge in patients with type II DM. Methods This study was carried out at Al-Makhfia governmental diabetes primary healthcare clinic in Nablus, Palestine. Main outcome of interest in the study was medication adherence. The Beliefs about Medicines Questionnaire (BMQ) was used to assess beliefs. Morisky Medication Adherence Scale (MMSA-8©) was used to assess medication adherence. The Michigan diabetes knowledge test (MDKT) was used to assess diabetes – related knowledge. Univariate and multivariate analysis were carried out using Statistical Package for Social Sciences (SPSS 20). Results Four hundred and five patients were interviewed. The mean ± SD age of the participants was 58.3 ± 10.4 (range = 28 – 90) years. More than half (53.3%) of the participants were females. Approximately 42.7% of the study sample were considered non-adherent (MMAS-8© score of < 6). Multivariate analysis showed that the following variables were significantly associated with non-adherence: disease-related knowledge, beliefs about necessity of anti-diabetic medications, concerns about adverse consequences of anti-diabetic medications and beliefs that medicines in general are essentially harmful. Diabetic patients with high knowledge score and those with strong beliefs in the necessity of their anti-diabetic medications were less likely to be non-adherent ([O.R = 0.87, 95% CI of 0.78 – 0.97] and [O.R = 0.93, 95% of 0.88 – 0.99] respectively). However, diabetic patients with high concerns about adverse consequences of anti-diabetic medications and those with high belief that all medicines are harmful were more likely to be non-adherent ([O.R = 1.09; 95% C.I of 1.04 – 1.16] and [O.R = 1.09, 95% C.I of 1.02 – 1.16] respectively). Conclusions Beliefs and knowledge are important factors in understanding variations in medication adherence among diabetic patients. The BMQ can be used as a tool to identify people at higher risk of non-adherence. Improving knowledge of patients about their illness might positively influence their medication adherence.
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            Communication and medication refill adherence: the Diabetes Study of Northern California.

            Poor medication refill adherence contributes to poor cardiometabolic control and diabetes outcomes. Studies linking communication between patients and health care providers to adherence often use self-reported adherence and have not explored differences across communication domains or therapeutic indications. To investigate associations between patient communication ratings and cardiometabolic medication refill adherence, we conducted a cross-sectional analysis of 9377 patients in the Diabetes Study of Northern California (DISTANCE), a race-stratified, random sample of Kaiser Permanente survey respondents. Eligible participants received 1 or more oral hypoglycemic, lipid-lowering, or antihypertensive medication in the 12 months preceding the survey. Communication was measured with a 4-item Consumer Assessment of Healthcare Providers and Systems Survey (CAHPS) score and 4 items from the Trust in Physicians and Interpersonal Processes of Care instruments. Poor adherence was classified as greater than a 20% continuous medication gap for ongoing medication therapies. Using modified least squares regression, we calculated differences in poor adherence prevalence for a 10-point decrease in CAHPS score and compared higher vs lower communication ratings on other items, adjusting for necessary sociodemographic and medical confounders derived from a directed acyclic graph. In this cohort, 30% had poor cardiometabolic medication refill adherence. For each 10-point decrease in CAHPS score, the adjusted prevalence of poor adherence increased by 0.9% (P=.01). Compared with patients offering higher ratings, patients who gave health care providers lower ratings for involving patients in decisions, understanding patients' problems with treatment, and eliciting confidence and trust were more likely to have poor adherence, with absolute differences of 4% (P=.04), 5% (P=.02), and 6% (P=.03), respectively. Associations between communication and adherence were somewhat larger for hypoglycemic medications than for other medications. Poor communication ratings were independently associated with objectively measured inadequate cardiometabolic medication refill adherence, particularly for oral hypoglycemic medications. Future studies should investigate whether improving communication skills among clinicians with poorer patient communication ratings could improve their patients' cardiometabolic medication refill adherence and outcomes.
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              Predictors of medication adherence and associated health care costs in an older population with type 2 diabetes mellitus: a longitudinal cohort study.

              The cost of treating diabetes mellitus and its complications is high (91.8 billion dollars in the United States in 2002). It is important to understand predictors of adherence to therapy with different antidiabetic medications and to determine the relationships between adherence and health care service utilization in older adults (aged >or=65 years) with type 2 diabetes mellitus. The aim of this study was to examine the relationship between self-reported health status data, subsequent antidiabetic medication adherence, and health care service utilization in older adults with type 2 diabetes mellitus in a managed care setting. This was a longitudinal cohort study of older adults in the south-eastern United States with type 2 diabetes mellitus who completed a health status assessment, used antidiabetic medications, and were enrolled in a health maintenance organization (HMO) continuously for 1 to 5 years. The baseline assessment included questions related to demographics, health care service utilization in the year before enrollment, lifestyle, and quality of life. Demographic, clinical, and utilization-related economic variables were also retrieved from the administrative claims data of the patients' HMO. Prescription refill patterns were used to measure adherence. Associations were examined with a sequential, mixed-model, regression approach. Model appropriateness was tested via sensitivity analyses with logged and unlogged dependent variables. A total of 775 patients were included. Increased comorbidity severity and an emergency room visit during the year prior to enrollment in a Medicare HMO were independently associated with decreased antidiabetic medication possession ratios (MPRs) after enrollment. After controlling for type of medication therapy and other variables, increased antidiabetic MPR remained the strongest predictor of decreased total annual health care costs (8.6% to 28.9% decrease in annual costs with every 10% increase in MPR; P < 0.001). Adherence to anti-diabetic medications was a greater driver of cost reduction than other concurrent medications (eg, statins) in this population. This study found strong associations between decreased anti-diabetic medication adherence and increased health care service utilization in older adults with type 2 diabetes mellitus in a managed care setting. Health status assessments completed at time of enrollment had the potential to identify enrollees with higher risk for both nonadherent behaviors and poor health-related outcomes.
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                Author and article information

                Journal
                Diabetes Metab Syndr Obes
                Diabetes Metab Syndr Obes
                DMSO
                dmso
                Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy
                Dove
                1178-7007
                01 May 2019
                2019
                : 12
                : 589-599
                Affiliations
                [1 ]Department of Social Sciences, Payame Noor University (PNU) , Tehran, Iran
                [2 ]Clinical Care Research Center, Kurdistan University of Medical Sciences , Sanandaj, Iran
                [3 ]Young Researchers and Elite Club, Birjand Branch, Islamic Azad University , Birjand, Iran
                [4 ]Department of Midwifery, School of Nursing and Midwifery, Kurdistan University of Medical Sciences , Sanandaj, Iran
                Author notes
                Correspondence: Reza Ghanei GheshlaghClinical Care Research Center, Kurdistan University of Medical Sciences , Pasdaran Ave, Sanandaj6618634683, IranTel +98 914 405 0284Email Ghanei@ 123456muk.ac.ir
                Article
                197159
                10.2147/DMSO.S197159
                6507070
                31118722
                87acf58e-0698-4a00-847f-18887277b868
                © 2019 Rezaei et al.

                This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License ( http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms ( https://www.dovepress.com/terms.php).

                History
                : 05 December 2018
                : 21 February 2019
                Page count
                Tables: 2, References: 38, Pages: 11
                Categories
                Original Research

                Endocrinology & Diabetes
                medication adherence,diabetes mellitus,content analysis
                Endocrinology & Diabetes
                medication adherence, diabetes mellitus, content analysis

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