Reliability and validity of a 12-item medication adherence scale for patients with chronic disease in Japan

Relationship between Illness Perception and the need for Professional Medical Interpretation for International Patients in Japan

This study aimed to conduct a cross-sectional questionnaire survey of foreign patients to analyze the impact of patients' illness perceptions on their need for professional medical interpreters. From February 2022 to May 2023, an online questionnaire was distributed to 4,962 individuals aged 18 years or older who were non-native speakers of Japanese. These individuals were enrolled in organizations such as international exchange associations and Japanese language support classes and had utilized medical institutions in Japan due to their own illness or injury or that of their children. Among the 312 valid responses, international patients with a high score for illness perception were more likely to want to utilize professional medical interpreters than those with a low score for illness perception (odds ratio, 1.968; 95% confidence interval, 1.044-3.709; P = 0.036). Our findings suggest that hospitals should be better prepared to meet the potential language needs of international patients with a higher illness perception.

The role of stigma and depression in the reduced adherence among young breast cancer patients in Hungary

BACKGROUND

The main aim of our study was to investigate the role of depression, stigmatization, body shame and self-compassion in the adherence of young Hungarian breast cancer patients aged between 18 and 45 years.

METHODS

In a cross-sectional online survey, data were collected from 99 young breast cancer patients (BC). Participants completed self-report questionnaires on socio-demographic and cancer-specific parameters as well as psychological factors (adherence: 12-item Medication Adherence Scale; depression: Hospital Anxiety and Depression Scale; stigmatization: Stigma Scale for Chronic Illnesses; body shame: Experience of Shame Scale; self-compassion: Self-Compassion Scale). We tested the predictors and mediators of adherence using hierarchical regression, mediation and moderation analysis among BC patients.

RESULTS

We found that adherence was significantly associated with body shame and stigmatization in our BC sample. In addition, stigmatization alone was a significant predictor of lower adherence. Finally, in mediation models, where body shame was a mediator, we found a significant direct effect between stigma and adherence, in other words body shame had a significant mediating effect between these variables. According to our moderation analysis, self-compassion as a significant moderator acts as a protective factor in the linear relationship between stigma and lower adherence.

CONCLUSIONS

Our results highlight the importance of stigma and body shame in the development of adherence in oncological care among young Hungarian BC patients aged between 18 and 45 years. Assessment of stigma, body shame, self-compassion, and the improvement of the availability of evidence-based psychological interventions may increase the adherence of young Hungarian BC patients, leading to more favourable rates of survival.

Impact of Radar Chart-Based Information Sharing in a Multidisciplinary Team on In-Hospital Outcomes and Prognosis in Older Patients With Heart Failure

Background: A multidisciplinary team (MDT) approach is crucial for managing older patients with heart failure (HF). We investigated the impact on clinical outcomes of implementation of a conference sheet (CS) with an 8-component radar chart for visualizing and sharing patient information. Methods and Results: We enrolled 395 older inpatients with HF (median age 79 years [interquartile range 72-85 years]; 47% women) and divided them into 2 groups according to CS implementation: a non-CS group (before CS implementation; n=145) and a CS group (after CS implementation; n=250). The clinical characteristics of patients in the CS group were assessed using 8 scales (physical function, functional status, comorbidities, nutritional status, medication adherence, cognitive function, HF knowledge level, and home care level). In-hospital outcomes (Short Physical Performance Battery, Barthel Index score, length of hospital stay, and hospital transfer rate) were significantly better in the CS than non-CS group. During the follow-up period, 112 patients experienced composite events (all-cause death or admission for HF). Inverse probabilities of treatment-weighted Cox proportional hazard analyses demonstrated a 39% reduction in risk of composite events in the CS group (adjusted hazard ratio 0.65; 95% confidence interval 0.43-0.97). Conclusions: Radar chart-based information sharing among MDT members is associated with superior in-hospital clinical outcomes and a favorable prognosis.

A pragmatically before-after trial of tele-visits vs face-to-face visits for chronic patients during the COVID-19 pandemic: patient-reported adherence

BACKGROUND

During the COVID-19 pandemic, chronic patients are at a higher risk of contamination with the virus. Specific strategies are required to restrict these patients' exposure to contaminated areas and improve medication adherence. One suggested strategy is tele-visiting, which is effective for the continuity of care and medication adherence during the pandemic.

OBJECTIVE

The present study aimed to explore the effect of tele-visiting services via telephone on chronic patients' medication adherence before and after implementing a tele-visit program during the COVID-19 pandemic.

METHODS

All patients received the tele-visit twice on the phone during the study. To compare patients' medication adherence in face-to-face visits and tele-visit, an adapted version of the Morisky Medication Adherence Scale-8 was used. Paired-samples T-test was run to measure participants' medication adherence before and after the tele-visit program.

RESULTS

The tele-visit was run for 314 patients. The participants' adherence score before the intervention was 60.02, and after the intervention was 59.9. As the paired-sample T-test results showed, the difference between these two was not statistically significant. Moreover, medication adherence was not significantly associated with any of these variables: BMI, occupation, comorbidities, duration of disease, age, gender, marital status, and education level.

CONCLUSIONS

The present findings showed that chronic patients' medication adherence did not differ significantly in face-to-face visits and tele-visiting. During the Covid-19 pandemic, due to the effectiveness of tele-visiting services, they can be used effectively to lower the transmission rate of the disease and reduce healthcare providers' burden.

Disturbed medication management in older adults with good cognitive health and mild cognitive impairment associated with semantic memory impairment: The Wakuya Project

AIM

For older adults with mild cognitive impairment or mild dementia, maintaining daily lives at home is also ideal for quality of life. However, they have serious problems with medication management. Although the Dementia Assessment Sheet in community-based integrated care system-21 items and the regimen comprehension scale are assessment scales for medication, there have been no reports evaluating both semantic memory and actual performance.

METHODS

A total of 180 older adults aged ≥75 years were entered in the Wakuya Project. They underwent the Clinical Dementia Rating, with two original tests: (i) the original semantic memory task for taking medication including the Dementia Assessment Sheet in community-based integrated care system-21 items; and (ii) the actual performance task related to medication including regimen comprehension scale. Non-demented participants were classified into two groups based on reports from their families; that is, a good management group (n = 66) and a poor management group (n = 42), and the two original tests were analyzed as explanatory variables.

RESULTS

There were no differences between the two groups for the actual performance task related to medication including regimen comprehension scale. The success rates for the actual performance task related to medication including regimen comprehension scale (good management group/poor management group) were: regimen comprehension scale 40.9/23.8, One-Day Calendar 93.9/90.5, Medicine Chest 36.4/23.8 and Sequential Behavior Task 66.7/66.7, respectively. In the original semantic memory task for taking medication including the Dementia Assessment Sheet in community-based integrated care system-21 items, logistic regression analysis showed that only the mechanism of action remained (B -2.38, SE 1.10, Wald 4.69, P-value = 0.03, OR 0.09, 95%CI 0.01-0.80).

CONCLUSION

Our results suggest that disruption of medicine management might also be associated with drug semantic memory impairment between the two groups, with no difference in general cognitive and executive functions. Geriatr Gerontol Int 2023; 23: 319-325.

Reliability and Validity of the Japanese Version of the Basel Assessment of Adherence to Immunosuppressive Medications Scale in Kidney Transplant Recipients

A valid and reliable instrument that can measure adherence is needed to identify nonadherent patients and to improve adherence. However, there is no validated Japanese self-report instrument to evaluate adherence to immunosuppressive medications for transplant patients. The purpose of this study was to determine the reliability and validity of the Japanese version of the Basel Assessment of Adherence to Immunosuppressive Medications Scale (BAASIS).

Methods

We translated the BAASIS into Japanese and developed the Japanese version of the BAASIS (J-BAASIS) according to the International Society of Pharmacoeconomics and Outcomes Research task force guidelines. We analyzed the reliability (test-retest reliability and measurement error) and validity of the J-BAASIS (concurrent validity with the medication event monitoring system and the 12-item Medication Adherence Scale) referring to the COSMIN Risk of Bias checklist.

Results

A total of 106 kidney transplant recipients were included in this study. In the analysis of test-retest reliability, Cohen's kappa coefficient was found to be 0.62. In the analysis of measurement error, the positive and negative agreement were 0.78 and 0.84, respectively. In the analysis of concurrent validity with the medication event monitoring system, sensitivity and specificity were 0.84 and 0.90, respectively. In the analysis of concurrent validity with the 12-item Medication Adherence Scale, the point-biserial correlation coefficient for the "medication compliance" subscale was 0.38 (P < 0.001).

Conclusions

The J-BAASIS was determined to have good reliability and validity. Using the J-BAASIS to evaluate adherence can help clinicians to identify medication nonadherence and institute appropriate corrective measures to improve transplant outcomes.

Association between the Big Five personality traits and medication adherence in patients with cardiovascular disease: A cross-sectional study

The correlation between personality traits and health outcomes of primary prevention has been examined. However, there is a lack of evidence on the association between the assessment of personality traits and medication adherence for secondary prevention of cardiovascular disease. Thus, this study aimed to explore the association between personality traits and medication adherence, including compliance to prescribed medications and attitudes toward taking medications among patients with cardiovascular disease. This cross-sectional study included patients hospitalized for cardiovascular disease. We assessed the Big Five personality traits (conscientiousness, neuroticism, openness, extraversion, and agreeableness) of each patient at discharge using the Ten-Item Personality Inventory. In addition, we evaluated four aspects of medication adherence using a 12-item version of the medication adherence scale: medication compliance, collaboration with health care providers, willingness to access and use information on medication, and acceptance to take medication. Logistic regression analysis was performed to assess the correlation between the level of each medication adherence domain and each personality trait. The data of 128 patients with cardiovascular disease were analyzed. Higher conscientiousness score was significantly associated with a high compliance score (odds ratio per 1 point increase, 1.90; 95% confidence interval, 1.30-2.79; p = 0.001), high collaboration score (1.90; 1.31-2.76; p = 0.001), and high willingness score (1.74; 1.19-2.54; p = 0.004) after adjustment for potential confounders. Other combinations of personality traits and medication adherence showed no statistically significant correlations in multivariate analyses. The findings of this study suggest that assessment of personality traits, especially conscientiousness, may facilitate patient-medical staff communication for the improvement of medication adherence in patients with cardiovascular disease.

Association between socioeconomic status and mucosal healing in Japanese patients with ulcerative colitis: a cross-sectional study

Objective

Socioeconomic status is a risk factor for worse outcomes in many diseases. However, evidence on the association between socioeconomic status and clinical outcome in patients with ulcerative colitis (UC) is limited. In the clinical setting, the therapeutic goal for UC is to achieve mucosal healing (MH). Thus, the aim of this study is to examine the association between socioeconomic status and MH in patients with UC.

Methods

The study population consisted of 298 patients with UC. Education status and household income were divided into three groups based on a self-administered questionnaire. MH and complete MH were defined as a Mayo endoscopic subscore of 0–1 and 0, respectively. The association of socioeconomic status with MH and complete MH was assessed by multivariate logistic regression analysis. Patients with UC were divided into a younger group (<51 years old) and an older group (≥51 years old) based on median age.

Results

The percentage of MH and complete MH was 62.4% and 25.2%, respectively. In all patients, socioeconomic status was not associated with MH and complete MH, respectively. In the older group, education but not household income was independently positively associated with MH and complete MH. In contrast, in the younger group, no association between socioeconomic status and MH and complete MH was found.

Conclusion

In older Japanese patients with UC, education status but not household income was independently positively associated with MH and complete MH.

Trust in the attending rheumatologist, health-related hope, and medication adherence among Japanese systemic lupus erythematosus patients

OBJECTIVE

Poor medication adherence among patients with systemic lupus erythematosus (SLE) is a critical problem associated with adverse outcomes. This study examined the relationship between trust in one's physician and goal-oriented thinking, hope, and medication adherence among Japanese patients with SLE who were ethnically matched to their physicians.

METHODS

This cross-sectional study was conducted in the rheumatology outpatient clinics at five academic centres. Patients with SLE who were prescribed oral medications were included. The main exposure was trust in one's physician measured via the 5-item Japanese version of the Wake Forest Physician Trust Scale and the 18-item Health-related Hope Scale, with each score ranging from 0 to 100 points. Medication adherence was measured using the 12-item Medication Adherence Scale with scores ranging from 5 to 60 points. A general linear model was created after adjusting for demographics, socioeconomic status, disease activity, disease duration, basic health literacy, depression, medication variables, experiencing adverse effects, and concerns regarding lupus medications.

RESULTS

Altogether, 373 patients with SLE were included. The mean age of the patients was 46.4 years; among them, 329 (88.2%) were women. Both trust in one's physician (per 10-point increase: 0.88, 95% confidence interval [95% CI]: 0.53-1.24) and the Health-related Hope score (per 10-point increase: 0.64, 95% CI: 0.33-0.95) were associated with better medication adherence.

CONCLUSION

This study demonstrated that patients' health-related hope and trust in their rheumatologist were both associated with better medication adherence in SLE.

Development of the opioid self-management scale for advanced Cancer patients with pain and examination of its validity and reliability

Background

Approximately 60% of outpatients with advanced cancer experience pain; therefore, self-management of opioid use is important for appropriate pain relief. To date, no studies have clearly described the concept of opioid self-management or assessed the factors involved, including the improvement of self-management abilities. This study developed, and evaluated the validity and reliability of an opioid self-management scale for advanced cancer patients with pain (OSSA). Opioid self-management in advanced cancer patients with pain was defined as the management of opioid medication performed by patients with advanced cancer to relieve cancer pain on their own.

Methods

Three phases were required for validation and reliability of the OSSA: 1) testing content validity, 2) testing face validity, and 3) testing construct validity, concurrent validity and reliability.

Results

After a three-phase process, the OSSA consisted of 33 items on six subscales. The structural equation modeling was such that the χ² value was 709.8 (p < 0.001, df = 467), goodness-of-fit index was 0.78, adjusted goodness-of-fit index was 0.73, root mean squares of approximation was 0.063, and comparative fit index was 0.92. The Pearson correlation coefficients between the total OSSA score and the 24-hour average pain or pain relief over 24 hours were − 0.21 (p < 0.05) and 0.26 (p < 0.01), respectively. Cronbach’s α was 0.93. The intraclass correlation coefficient range was 0.59–0.90.

Conclusion

The findings of this study show that the OSSA has acceptable validity and reliability, and that better self-management leads to greater pain relief. The OSSA can be considered effective for use in research, but shortened version should be prepared for realistic and practical clinical use.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12904-022-00987-4.

Relationship Between Family Functioning and Medication Adherence in Chinese Patients With Mechanical Heart Valve Replacement: A Moderated Mediation Model

Background: Medication adherence is crucial for patients with mechanical heart valve replacement. Although families functioning is positively associated with medication adherence, little is known about the underlying mechanisms. Objective: To test whether family functioning affects medication adherence through illness perceptions and whether this mediating effect was moderated by medication literacy. Methods: 319 patients after mechanical heart valve replacement were included in this cross-sectional study from June 2021 to October 2021. Data regarding family functioning, illness perceptions, medication adherence, and medication literacy were collected through questionnaires. The moderated mediation model was examined by Hayes's PROCESS macro, based on the bootstrapping method. Results: The results revealed illness perceptions partially mediated the association of family functioning on medication adherence [β = 0.08, 95% confidence intervals: (0.04, 0.12)], and this effect was stronger for patients with low medication literacy than those with high literacy [β = -0.36, 95% CI: (-0.50, -0.22)]. Furthermore, the relationship between family functioning and medication adherence was only significant in patients with low medication literacy [β = 0.36, 95% CI: (0.23, 0.50)]. Conclusion: The mediating effect of illness perceptions between family functioning and medication adherence was moderated by medication literacy. Efforts to improve medication adherence by targeting at improving family functioning may be more effective when considering illness perceptions, especially for patients with limited medication literacy.

Factors related to self-care drug treatment and medication adherence of elderly people in Japan

Objectives

Study design

Methods

Results

Conclusions

•

Medication adherence was significantly positively associated with health literacy.

•

Good communication with doctors was closely related to medication adherence.

•

Promoting health literacy and communication when supporting self-care drug treatment for elderly people.

Measurement Properties of Existing Patient-Reported Outcome Measures on Medication Adherence: Systematic Review

Background

Medication adherence is essential for improving the health outcomes of patients. Various patient-reported outcome measures (PROMs) have been developed to measure medication adherence in patients. However, no study has summarized the psychometric properties of these PROMs to guide selection for use in clinical practice or research.

Objective

This study aims to evaluate the quality of the PROMs used to measure medication adherence.

Methods

This study was guided by the PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analysis) guidelines. Relevant articles were retrieved from the EMBASE, PubMed, Cochrane Library, Web of Science, and CINAHL (Cumulative Index to Nursing and Allied Health Literature) databases. The PROMs were then evaluated based on the COnsensus-based Standards for the selection of health Measurement Instruments (COSMIN) guidelines.

Results

A total of 121 unique medication adherence PROMs from 214 studies were identified. Hypotheses testing for construct validity and internal consistency were the most frequently assessed measurement properties. PROMs with at least a moderate level of evidence for ≥5 measurement properties include the Adherence Starts with Knowledge 20, Compliance Questionnaire-Rheumatology, General Medication Adherence Scale, Hill-Bone Scale, Immunosuppressant Therapy Barrier Scale, Medication Adherence Reasons Scale (MAR-Scale) revised, 5-item Medication Adherence Rating Scale (MARS-5), 9-item MARS (MARS-9), 4-item Morisky Medication Adherence Scale (MMAS-4), 8-item MMAS (MMAS-8), Self-efficacy for Appropriate Medication Adherence Scale, Satisfaction with Iron Chelation Therapy, Test of Adherence to Inhalers, and questionnaire by Voils. The MAR-Scale revised, MMAS-4, and MMAS-8 have been administered electronically.

Conclusions

This study identified 121 PROMs for medication adherence and provided synthesized evidence for the measurement properties of these PROMs. The findings from this study may assist clinicians and researchers in selecting suitable PROMs to assess medication adherence.

Development of an Item Bank to Measure Medication Adherence: Systematic Review

Background

Medication adherence is important in managing the progression of chronic diseases. A promising approach to reduce cognitive burden when measuring medication adherence lies in the use of computer‐adaptive tests (CATs) or in the development of shorter patient-reported outcome measures (PROMs). However, the lack of an item bank currently hampers this progress.

Objective

We aim to develop an item bank to measure general medication adherence.

Methods

Using the preferred reporting items for systematic review and meta-analysis (PRISMA), articles published before October 2019 were retrieved from PubMed, Embase, CINAHL, the Cochrane Library, and Web of Science. Items from existing PROMs were classified and selected (“binned” and “winnowed”) according to standards published by the Patient-Reported Outcomes Measurement Information System (PROMIS) Cooperative Group.

Results

A total of 126 unique PROMs were identified from 213 studies in 48 countries. Items from the literature review (47 PROMs with 579 items for which permission has been obtained) underwent binning and winnowing. This resulted in 421 candidate items (77 extent of adherence and 344 reasons for adherence).

Conclusions

We developed an item bank for measuring general medication adherence using items from validated PROMs. This will allow researchers to create new PROMs from selected items and provide the foundation to develop CATs.

Impact of Diabetes Perceptions on Medication Adherence in Japan

Background: Patients’ perception of diabetes mellitus is one of the psychosocial factors influencing diabetic behavior. This patients’ perception of the disease is a mental image formed from the experience of patients with type 2 diabetes mellitus and reportedly reflects the aspect of recuperation. We investigated the relationship between changes in the patients’ perception of the disease and medication adherence, as influenced by the active involvement of community pharmacists. Methods: A prospective cohort study that used patient registry based in community pharmacies was conducted in patients with type 2 diabetes using oral antidiabetic agents at a pharmacy in Ishikawa Prefecture in Japan. Patients responded to the questionnaire at the time of enrollment and at the end of the one-year intervention period. The pharmacist confirmed the patient's medication status and treatment problems via telephone calls at least once every two weeks for one year. Main outcome measures: Type 2 diabetes patients’ perception of the disease related to medication adherence. Results: The study enrolled 113 patients. Among the seven diabetes image factors, “Living an orderly life” and “Feeling of fear” were significantly associated with medication adherence. “Feeling of neglect of health” was significantly associated at the subscale level. Conclusion: All the three factors related to medication adherence indicated self-care ability. To enhance the self-care ability of the patient, pharmacists should assist in self-care interventions for the patients.

The association between health literacy levels and patient-reported outcomes in Japanese type 2 diabetic patients

OBJECTIVES

The aim of this study is to empirically examine a full pathway model of health literacy, and health and well-being outcomes among patients with type 2 diabetes.

METHODS

A three-wave longitudinal survey was administered to 148 patients with diabetes. Covariance structure analysis was conducted to create a path diagram, with health literacy and burden of medical expenses included as independent variables and with psychosocial factors, behaviors, and health and well-being outcomes included as dependent variables.

RESULTS

The model fit indices showed a comparative fit index of 0.985 at baseline, 0.959 after 3 months, and 0.948 after 6 months, with a root mean square error of approximation of 0.040 at baseline, 0.079 after 3 months, and 0.085 after 6 months. There were 14 significant paths across the three time points between health literacy and understanding of diabetes care, self-efficacy, communication with doctors, and medication adherence.

CONCLUSION

The model fitness index showed an adequate result. Health literacy was significantly positively associated with understanding of diabetes care, self-efficacy, communication with doctors, and medication adherence. Health literacy had a direct positive influence on medication adherence and possibly an indirect positive influence on exercise/diet via self-efficacy. The results were generally consistent across the three time points, suggesting good reliability of the models. Improving health literacy may lead to better self-management of diabetes and favorable health outcomes.

Treatment Adherence Among Patients with Five Dermatological Diseases and Four Treatment Types - a Cross-Sectional Study

PURPOSE

Treatment non-adherence leads to negative therapeutic outcomes and financial burdens on the healthcare system. This study aims to compare the mean adherence scores among patients with five dermatological diseases and four treatment types and to identify the associated patient-related factors.

PATIENTS AND METHODS

This is a cross-sectional study conducted from January 2019 to August 2019. The questionnaire was distributed among patients attending the outpatient dermatology clinic at King Khalid University Hospital, Riyadh, Saudi Arabia. It included 2330 patients who were over 16 years old and diagnosed with any of the five dermatological diseases (psoriasis, chronic dermatitis, acne vulgaris, hair growth disorders, and vitiligo). The 12-item Medication Adherence Scale was used to quantify the mean adherence score.

RESULTS

Patients with psoriasis or chronic dermatitis were less adherent to treatments than patients with acne vulgaris, hair growth disorder, or vitiligo. Oral treatment and phototherapy had higher mean adherence scores than injection or topical treatment. High adherence was found in female, single patients; those who did not feel stigmatized from using treatment; those who did not have bad experience with the treatment; those who did not suffer from forgetfulness; those who connected receiving treatment with a habit; those who did not lack treatment responsiveness; those who had an excellent relationship with a dermatologist; and patients with a lesion in an exposed area. Stepwise multiple linear regression was also used to identify the independent variables related to adherence score.

CONCLUSION

Psoriasis and chronic dermatitis patients had the lowest mean adherence scores. Patient who were on oral medication had the highest adherence score, while those on topical medication had the lowest score. The thoughtful consideration of factors associated with high adherence is important for optimal therapeutic outcomes.