Objective: This study aimed to elucidate the factors that affect medication adherence in outpatients with depression using multivariate analysis.Methods: A web-based survey on medication adherence, medication attitude (Drug Attitude Inventory-10; DAI-10), medication self-management, and satisfaction with the prescribing physician/pharmacy for outpatients with depression was conducted in January 2018. T-tests and path analysis were performed to evaluate comparisons of responses based on gender, high/low importance of medication guidance, high/low intention to consult, and high/low frequency of consultations.Results: For mean scores, no significant difference was observed between males and females according to a t-test. In terms of the importance of medication guidance, the high importance group had significantly higher prescribing physician/pharmacy satisfaction and better self-management. In terms of intention to consult, respondents with high intention to consult had significantly higher scores on the DAI-10, better self-management, and higher prescribing physician/pharmacy satisfaction. In terms of frequency of consultations, only pharmacy satisfaction was significantly higher in the high-frequency group. Path analysis revealed that, in general, adherence was influenced by medication attitude and self-management, and prescribing physician/pharmacy satisfaction and self-management were influenced by medication attitude. In the intergroup comparison, pharmacy satisfaction did not affect medication adherence in males or the group with low importance of medication guidance. In addition, medication attitude did not affect adherence only in the non-consultation group.Discussion: These results suggest that it is necessary to improve the medication support measures at pharmacies for outpatients with depression. Furthermore, in order for the measures to improve medication attitudes and adherence to be effective, it is necessary for patients to understand the benefits and importance of using pharmacists effectively, including medication support and consultation, and to be actively involved in the maintenance and promotion of patients' health.

BACKGROUND: The burden of dementia is growing rapidly and has become a medical and social problem in Japan. Prospective cohort studies have been considered an effective methodology to clarify the risk factors and the etiology of dementia. We aimed to perform a large-scale dementia cohort study to elucidate environmental and genetic risk factors for dementia, as well as their interaction. METHODS: The Japan Prospective Studies Collaboration for Aging and Dementia (JPSC-AD) is a multisite, population-based prospective cohort study of dementia, which was designed to enroll approximately 10,000 community-dwelling residents aged 65 years or older from 8 sites in Japan and to follow them up prospectively for at least 5 years. Baseline exposure data, including lifestyles, medical information, diets, physical activities, blood pressure, cognitive function, blood test, brain magnetic resonance imaging (MRI), and DNA samples, were collected with a pre-specified protocol and standardized measurement methods. The primary outcome was the development of dementia and its subtypes. The diagnosis of dementia was adjudicated by an endpoint adjudication committee using standard criteria and clinical information according to the Diagnostic and Statistical Manual of Mental Disorders, 3rd Revised Edition. For brain MRI, three-dimensional acquisition of T1-weighted images was performed. Individual participant data were pooled for data analyses. RESULTS: The baseline survey was conducted from 2016 to 2018. The follow-up surveys are ongoing. A total of 11,410 individuals aged 65 years or older participated in the study. The mean age was 74.4 years, and 41.9% were male. The prevalence of dementia at baseline was 8.5% in overall participants. However, it was 16.4% among three sites where additional home visit and/or nursing home visit surveys were performed. Approximately two-thirds of dementia cases at baseline were Alzheimer's disease. CONCLUSIONS The prospective cohort data from the JPSC-AD will provide valuable insights regarding the risk factors and etiology of dementia as well as for the development of predictive models and diagnostic markers for the future onset of dementia. The findings of this study will improve our understanding of dementia and provide helpful information to establish effective preventive strategies for dementia in Japan.
Aged ; Alzheimer Disease/genetics* ; Dementia/genetics* ; Environment ; Female ; Humans ; Incidence ; Japan/epidemiology* ; Male ; Middle Aged ; Prevalence ; Prospective Studies ; Risk Factors