Systematic Review Examining the Behavior Change Techniques in Medication Adherence Intervention Studies Among People With Type 2 Diabetes.

BACKGROUND: Although previous systematic reviews have studied medication adherence interventions among people with Type 2 diabetes (PwT2D), no intervention has been found to improve medication adherence consistently. Furthermore, inconsistent and poor reporting of intervention description has made understanding, replication, and evaluation of intervention challenging. PURPOSE: We aimed to identify the behavior change techniques (BCTs) and characteristics of successful medication adherence interventions among PwT2D. METHODS: A systematic search was conducted on Medline, Embase, CINAHL, PsycINFO, Cochrane Central Register of Controlled Trials, Web of Science, and Scopus. Studies were included if they were randomized controlled trials with BCT-codable interventions designed to influence adherence to anti-diabetic medication for PwT2D aged 18 years old and above and have medication adherence measure as an outcome. RESULTS: Fifty-five studies were included. Successful interventions tend to target medication adherence only, involve pharmacists as the interventionist, contain "Credible source" (BCT 9.1), "Instruction on how to perform the behaviour" (BCT 4.1), "Social support (practical)" (BCT 3.2), "Action planning" (BCT 1.4), and/ or "Information about health consequences" (BCT 5.1). Very few interventions described its context, used theory, examined adherence outcomes during the follow-up period after an intervention has ended, or were tailored to address specific barriers of medication adherence. CONCLUSION: We identified specific BCTs and characteristics that are commonly reported in successful medication adherence interventions, which can facilitate the development of future interventions. Our review highlighted the need to consider and clearly describe different dimensions of context, theory, fidelity, and tailoring in an intervention.

Medication is the mainstay treatment for diabetes. However, the use of anti-diabetic oral medications and/or injections may be intrusive, inconvenient, and complicated, leading to poor medication adherence, which occurs in about 50% of patients. Medication adherence is the extent to which a person's medication-taking behavior corresponds with agreed recommendations from a healthcare provider and is associated with suboptimal health outcomes and increased healthcare expenditure. Interventions to improve adherence have not been consistently effective or well described, which makes it difficult to ascertain what works best. In this study, we aimed to identify the behavior change techniques (BCTs) and characteristics of successful medication adherence interventions among adults with Type 2 diabetes. BCTs are active ingredients in an intervention that regulate medication adherence and have standardized definitions. After searching 7 databases systematically, we analyzed 55 studies published in January 2018­March 2022. We found that the more effective interventions were those which had a sole focus on medication adherence, involved pharmacists, and contained specific BCTs, namely "Credible source," "Instruction on how to perform the behaviour," "Social support (practical)," "Action planning," and/or "information about health consequences." These specific BCTs and characteristics can be considered in future interventions for improving medication adherence.

To What Extent Is the World Health Organization's Medication Safety Challenge Being Addressed in English Hospital Organizations? A Descriptive Study.

OBJECTIVES: Our study aimed to explore to what extent the priority areas and domains of the World Health Organization (WHO)'s third Global Patient Safety Challenge were being addressed in a sample of hospital organizations. METHODS: A qualitative approach was taken using a combination of focus groups, semistructured interviews, and documentary analysis in 4 UK teaching hospital organizations. A purposive sampling strategy was adopted with the aim of recruiting health care professionals who would be likely to have knowledge of medication safety interventions that were being carried out at the hospital organizations. Medication safety group meeting notes from 2017 to 2019 were reviewed at the hospital organizations to identify interventions recently implemented, those currently being implemented, and plans for the future. A content analysis was undertaken using the WHO's third Global Patient Safety Challenge priority areas and domains as deductive themes. RESULTS: All the domains and priority areas of the WHO Medication Safety Challenge were being addressed at all 4 sites. However, a greater number of interventions focused on "health care professionals" and "systems and practices of medication management" than on "patients and the public." In terms of the priority areas, the main focus was on "high-risk situations," particularly high-risk medicines, with fewer interventions in the areas of "transitions of care" and "polypharmacy." CONCLUSIONS: More work may be needed to address patient and public involvement in medication safety and the priority areas of transitions of care and polypharmacy. Comparative global studies would help build an international picture and allow shared learning.

Association between Total Daily Doses with duration of hospitalization among readmitted patients in a multi-ethnic Asian population.

Increased length of stay (LOS) in the hospital incurs substantial financial costs on the healthcare system. Multiple factors are associated with LOS. However, few studies have been done to associate the impact of Total Daily Doses (TDD) and LOS. Hence, the aim of this study is to examine the association between patients' LOS upon readmission and their TDD before readmission. A retrospective cross-sectional study of readmission cases occurring from 1st January to 31st March 2013 was conducted at a regional hospital. Demographics and clinical variables were collected using electronic medical databases. Univariable and multiple linear regressions were used. Confounders such as comorbidities and drug related problems (DRP) were controlled for in this study. There were 432 patients and 649 readmissions examined. The average TDD and LOS were 18.04 ± 8.16 and 7.63 days ± 7.08 respectively. In the univariable analysis, variables that were significantly associated with the LOS included age above 75 year-old, race, comorbidity, number of comorbidities, number of medications, TDD and thrombocytopenia as DRPs. In the multiple linear regression, there was a statistically significant association between TDD (ß = 0.0733, p = 0.030) and LOS. Variables that were found significant were age above 75 year-old (ß = 1.5477, p = 0.008), Malay (ß = -1.5123, p = 0.033), other races (ß = -2.6174, p = 0.007), depression (ß = 2.1551, p = 0.031) and thrombocytopenia as a type of DRP (ß = 7.5548, p = 0.027). When TDD was replaced with number of medications, number of medications (ß = 0.1487, p = 0.021), age of 75 year-old (ß = 1.5303, p = 0.009), Malay (ß = -1.4687, p = 0.038), race of others (ß = -2.6499, p = 0.007), depression (ß = 2.1951, p = 0.028) and thrombocytopenia as a type of DRP (ß = 7.5260, p = 0.028) were significant. In conclusion, a significant relationship between TDD and number of medications before readmission and the LOS upon readmission was established. This finding highlights the importance of optimizing patients' TDD in the attempt of reducing their LOS.

Association between number of doses per day, number of medications and patient's non-compliance, and frequency of readmissions in a multi-ethnic Asian population.

OBJECTIVE: To investigate whether number of doses per day and number of medications are significantly associated with the number of readmissions and to study the association of readmission frequency with other medical and socio-demographic variables. METHODS: Retrospective cross-sectional study involving 432 patients who were readmitted within 15 days of previous hospital discharge between January 1, 2013 and March 31, 2013. Relevant medical records were collected from the national electronic databases of every public tertiary hospital in Singapore. Significant variables (p < 0.05) were identified using forward selection and modeled using generalized linear mixed models. RESULTS: A total of 649 unplanned readmissions were reviewed. At a multivariable level, number of readmission was significantly associated with the number of medications (p = 0.002) and number of doses per day (p = 0.003) after adjusting for race, liver disease, schizophrenia and non-compliance. CONCLUSION: Complex medication regimen (i.e. multiple medications and multiple doses per day) is a statistically significant predictor of number of readmissions. Simplifying therapeutic regimens with alternatives such as longer-acting or fixed-dose combination drugs may facilitate better patient adherence and reduce costly readmissions.