Publications by authors named "Ayane Komatsu"

Objective: The incidence rates of dementia, mild cognitive impairment, and cancer increase with age, posing challenges to affected individuals and their families. However, there are currently no clear cancer screening guidelines for individuals with cognitive impairment. This study analyzed the impact of carer health literacy on screening behaviors in this population.

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Background: Behavioral and psychological symptoms of dementia (BPSD) are common among people with dementia from the early stages and can appear even in mild cognitive impairment (MCI). However, the prognostic impact of BPSD is unclear. This study examined the association between BPSD and mortality among people with cognitive impairment.

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Article Synopsis
  • The study aimed to analyze how type 2 diabetes and glycated hemoglobin (HbA1c) levels affect mortality in older adults with cognitive impairment.
  • Researchers examined 1,528 patients aged 65 and over, differentiating between those with and without type 2 diabetes, and categorized diabetic patients based on their HbA1c levels.
  • Findings showed that HbA1c levels above or below the recommended range increase mortality risk, while levels within the target range do not, supporting current diabetes management guidelines for older adults.
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Aim: To support informal caregivers, a simple assessment tool capturing the multidimensional nature of caregiving experiences, including negative and positive aspects, is required. We developed a short form of the Japanese version of the Caregiver Reaction Assessment (CRA-J), a multidimensional assessment scale for caregiver experiences.

Methods: The internet survey involved 934 Japanese informal caregivers aged 20-79 years (mean age = 58.

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Aim: The study aimed to investigate the association of vitality, as measured using the vitality index (Vix), with the survival outcomes of older adults with mild cognitive impairment (MCI) or dementia.

Methods: We analyzed data from 3731 patients in the National Center for Geriatrics and Gerontology - Life Stories of Individuals with Dementia cohort from July 2010 to September 2018. The main focus was to correlate Vix scores with the time from the initial visit to death.

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Background: The decision-making of older adults and people with dementia is attracting more attention among healthcare professionals. While cognitive impairment has been examined as a factor related to decision-making, it can also be assumed that involvement in decision-making leads to the maintenance of cognitive function. This study examined the association of the decision-making process with the onset of cognitive impairment.

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Article Synopsis
  • A predictive model for all-cause mortality was developed to study risk factors among cognitively impaired individuals in a Japanese memory clinic cohort from 2010-2018.
  • The study included 2,610 patients aged 65 and older, with 544 (20.8%) deaths over an average follow-up of 4.1 years; nine key predictors of mortality were identified.
  • The model demonstrated strong accuracy for predicting 1-5 year mortality and can be effectively used for patients with mild cognitive impairment and various stages of dementia.
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Overcoming dementia stigma is a global challenge. Contact and education on dementia may be promising approaches for reducing public stigma; however, the current evidence is insufficient. This study examined the moderating factors associated with the public stigma against dementia, focusing on experiences of interacting with and learning about people with dementia.

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Background: Prognosis-related information regarding dementia needs to be updated, as changes in medical and long-term care environments for patients with dementia in recent decades may be improving the prognosis of the disease.

Objective: We aimed to investigate the mortality, cause of death, and prognostic factors by types of dementia in a Japanese clinic-based cohort.

Methods: The National Center for Geriatrics and Gerontology-Life Stories of People with Dementia consists of clinical records and prognostic data of patients who visited the Memory Clinic in Japan.

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Stroke is a major cause of disability in old age. Research has revealed that social resources available after the onset of stroke can mitigate functional prognosis. However, most studies have conceptualized resources as static rather than dynamic and have not measured changes in social resources from the pre-to post-stroke periods.

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Aim: Reducing stigma against dementia is a global challenge, but the assessment scale is not well established. We examined the validity and reliability of the Japanese version of the assessment scale of public stigma against dementia.

Methods: This study recruited 819 adults aged 20-69 years (mean age = 45.

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Aim: Despite a growing interest in decision-making by care recipients, few empirical studies have examined the everyday care decisions of community-dwelling older adults. This study aimed to examine the association of recipient- and caregiver-related factors with decision-making involvement of community-dwelling older care recipients.

Methods: We conducted secondary data analysis using publicly available cross-sectional data from a dyadic survey with care recipients aged ≥65 years and their primary caregivers in two regions of Japan, one urban and another rural, in 2003.

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Objectives: Art and cultural activities can benefit mental health. However, there is insufficient evidence on active engagement in art and cultural activities for preventing depressive symptoms among older adults. Therefore, we examined the association of active engagement in art and cultural activities with depressive symptom onset among older adults using 3-year longitudinal data.

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Objective: For older adults receiving long-term care (LTC) at home, little is known about the role of social function in the onset of adverse outcomes, such as death, institutionalization, and functional decline. We examined the association between social function and adverse outcome onset among community-dwelling older adults with mild care needs.

Methods: This two-year longitudinal study recruited non-institutionalized older adults, with mild care need levels, in 2003.

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Background: In Asia, where autonomous decision-making is not well accepted, little is known about whether and how individuals' preferences are considered when deciding where they receive care. This study examined whether individuals preferring to age in place if confined to bed were less likely to be institutionalized, using longitudinal data of Japanese older adults.

Methods: We analyzed nationally representative data of 1,290 community-dwelling older adults aged 70 and above.

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