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1.
Geriatr Nurs ; 58: 232-237, 2024 Jun 04.
Article in English | MEDLINE | ID: mdl-38838405

ABSTRACT

Few studies have reported an association between diversity in productive activities and life satisfaction; hence, this cross-sectional study conducted in Japan aimed to clarify this association. We assessed the life satisfaction of 4,498 Japanese community-dwelling older adults engaged in productive activities (e.g., paid work, volunteering, taking care of children, and supporting others) using the Life Satisfaction Scale. We took the sum of the number of engaging productive activities as the diversity in productive activities score. A dose-response relationship was observed for each additional productive activity on life satisfaction. Participants who engaged in one, two, three, or four productive activities were more likely to have higher life satisfaction than those who did not engage; the odds ratios (95 % confidence intervals) were 1.19 (1.02-1.39), 1.19 (1.00-1.42), 1.71 (1.37-2.13), and 2.27 (1.58-3.27), respectively. Diversity in productive activities may enhance higher life satisfaction likelihood among Japanese community-dwelling older adults.

2.
J Pers Med ; 14(5)2024 Apr 29.
Article in English | MEDLINE | ID: mdl-38793061

ABSTRACT

The purpose of this study was to conduct a cross-sectional analysis of the association between hearing aid use and cognitive decline in community-dwelling older adults with hearing impairment, stratified by cardiovascular risk level. This cross-sectional study covers 1857 hearing-impaired individuals selected among 10,674 community-dwelling older adults (≥65 years of age) in Japan. We investigate the association between hearing aid use and cognitive decline stratified by cardiovascular risk level, by assessing self-reported hearing impairment and hearing aid use, absolute cardiovascular risk, cognitive function, and potential confounding factors. The association between hearing impairment severity and increased cardiovascular risk, and the benefit of hearing aid use in preventing cognitive decline, were examined in a binomial logistic regression analysis, with the presence of cognitive decline as the objective variable. In the low cardiovascular risk group, hearing aid users had a lower odds ratio for decline in executive function than non-users (odds ratio = 0.61, 95% confidence interval: 0.39-0.98). However, there was no significant association between hearing aid use and cognitive decline in the high cardiovascular risk group (p > 0.05). Among older adults with hearing impairment, hearing aid use was associated with the maintenance of executive function in individuals of low cardiovascular risk.

3.
Prev Med ; 183: 107976, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38688347

ABSTRACT

OBJECTIVES: This longitudinal observational cohort study aimed to clarify the relationship between perceived value (PV) to adopt new behaviors and incident disability in community-dwelling older adults. METHOD: Participants were 5073 community-dwelling older adults aged ≥65 years in Japan (Mage = 74.0 ± 5.6 years; female = 55.1%). The mean follow-up time was 34.5 months. Baseline data were collected during health checkups in a prospective cohort study. Measurements included engagement in physical activity (PA), cognitive activity (CA), and social activity (SA), PV, health and physical conditions, and demographic characteristics. PV was assessed by asking whether participants thought it was valuable to adopt new behaviors related to PA, CA, and SA. Participants were classified as having higher/lower PV, PA, CA, and SA. Cox proportional hazard models were used to analyze the association between PV and incident disability. PV was examined both as an independent variable and in combination as follows: higher PV and higher PA/CA/SA (high/high); lower PV and higher PA/CA/SA (low/high); higher PV and lower PA/CA/SA (high/low); and lower PV and lower PA/CA/SA (low/low). RESULTS: Higher PV was significantly associated with a lower hazard ratio (HR) for incident disability. The low/high, high/low, and low/low significantly increased the HR compared to high/high in the analyses of PV & PA and CA. The analysis of PV & SA showed that only low/low increased the HR compared to high/high. CONCLUSION: Having both higher PV and higher activity engagement may contribute to preventing disability development. Both support for activities and value education in older adults may be needed.


Subject(s)
Disabled Persons , Exercise , Independent Living , Humans , Female , Male , Aged , Japan , Longitudinal Studies , Disabled Persons/statistics & numerical data , Disabled Persons/psychology , Prospective Studies , Aged, 80 and over , Health Behavior , Incidence , East Asian People
4.
Sci Rep ; 14(1): 4569, 2024 02 25.
Article in English | MEDLINE | ID: mdl-38403722

ABSTRACT

Early preventive measures against depression have become important with unprecedented global aging. Increase in one's perceived value (PV) may correspond to better mental health outcomes. This cross-sectional observation study aimed to clarify whether the PV of adopting new behaviors is associated with depressive symptoms. The participants were 5266 community-dwelling older adults aged ≥ 65 years. We developed a questionnaire to measure the PV of adopting new behaviors, specifically activities beneficial for preventing depressive symptoms (physical, cognitive, and social activities) in older adults. The questionnaire asked whether adopting the ten selected behaviors was valuable. The scores were added, and the total score ranged from - 20 to 20. The odds ratios (OR) of depressive symptoms were calculated using binomial logistic regression according to the PV score quartiles. Depressive symptoms were reported by 595 (11.3%) participants. After adjusting for potential confounders, higher quartiles of PV scores were significantly associated with lower prevalence of depressive symptoms: vs Q1; Q2 OR 0.76 (95% confidence interval: 0.59-0.97); Q3 0.67 (0.51-0.87); Q4 0.54 (0.40-0.73) (P for trend < .001). Having a higher PV of adopting new behaviors may prevent depressive symptoms among older adults. Healthcare professionals need to pay attention to poor value orientation among older adults.


Subject(s)
Depression , Independent Living , Aged , Humans , Cross-Sectional Studies , Depression/epidemiology , Depression/prevention & control , Depression/diagnosis , Social Behavior , Surveys and Questionnaires
5.
Eur Geriatr Med ; 15(2): 545-552, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38281299

ABSTRACT

OBJECTIVE: The present study examined whether dietary diversity is associated with chronic kidney disease (CKD) in community-dwelling older Japanese adults. METHODS: Participants comprised 8,195 older adults (mean age was 74.0 ± 5.6 years; 42.7% were men) in this cross-sectional study. In this study, CKD was defined as estimated Glomerular Filtration Rate (eGFR) < 45 mL/min/1.73 m2. Diet variety was assessed using the Food Frequency Score (FFS) (maximum, 30 points). The FFS assessed the one-week consumption frequency of ten foods (meat, fish/shellfish, eggs, milk, soybean products, green & yellow vegetables, potatoes, fruits, seafood, and fats & oil). Participants with an FFS of 16 or fewer points were defined as having low dietary diversity. RESULTS: The prevalence of CKD was 376 (4.6%), and the low dietary diversity group had higher prevalence (5.6%) compared with the high and low dietary diversity group (4.3%). Multiple logistic regression analysis revealed low dietary diversity was associated with CKD in older adults (OR 1.30, 95%CI 1.01-1.68). Stratified analysis showed that low dietary diversity was independently associated with CKD (OR 1.43, 95% CI 1.07-1.91) in older adults with hypertension, but not in adults without hypertension (OR 0.94, 95% CI 0.54-1.64). CONCLUSIONS AND IMPLICATIONS: This cross-sectional study revealed that low dietary diversity was associated with CKD among older adults. Furthermore, low dietary diversity was associated with CKD among older adults with hypertension.


Subject(s)
Hypertension , Renal Insufficiency, Chronic , Male , Animals , Humans , Aged , Female , Independent Living , Cross-Sectional Studies , Diet/adverse effects , Renal Insufficiency, Chronic/epidemiology
6.
J Am Med Dir Assoc ; 25(3): 488-493.e3, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38246592

ABSTRACT

OBJECTIVES: Regular physical activity throughout life is generally recommended to prevent dementia; however, there is little evidence regarding the association between lifetime physical activity and mild cognitive impairment (MCI), which often precedes dementia. This study aimed to examine the association of lifetime physical activity and their transitions with late-life MCI. DESIGN: A population-based case-control study. SETTING AND PARTICIPANTS: A total of 2968 Japanese community-dwelling older adults aged ≥70 years without dementia. METHODS: We evaluated the participants' early-, mid-, and late-life physical activity habits and categorized their transitions across life stages. Cognitive functions in late life were assessed for memory, attention, executive function, and processing speed; functional impairment in one or more cognitive domains was defined as MCI. RESULTS: Regular physical activity in early life was not significantly associated with late-life MCI [odds ratio (OR), 0.80; 95% CI, 0.63-1.02], although those in mid-life (OR, 0.64; 95% CI, 0.51-0.81) and late-life (OR, 0.74; 95% CI, 0.59-0.91) were associated with lower odds of late-life MCI. Compared with nonexercisers, participants who acquired new habits of physical activity during mid- or late-life (OR, 0.71; 95% CI, 0.55-0.91) and those who maintained physical activity throughout their life span (OR, 0.61; 95% CI, 0.42-0.87) had lower odds of late-life MCI; those who stopped regular activity during mid- or late-life did not (OR, 0.79; 95% CI, 0.58-1.06). CONCLUSIONS AND IMPLICATIONS: While physical activity throughout the life span is associated with the lowest odds of MCI, starting regular physical activity, even later in life, confers a benefit and should be encouraged as a "lifelong approach" to MCI risk reduction.


Subject(s)
Cognitive Dysfunction , Dementia , Humans , Aged , Independent Living , Case-Control Studies , Exercise , Dementia/psychology
7.
Alzheimers Res Ther ; 15(1): 217, 2023 12 15.
Article in English | MEDLINE | ID: mdl-38102703

ABSTRACT

BACKGROUND: Neurodegeneration and structural changes in the brain due to amyloid deposition have been observed even in individuals with mild cognitive impairment (MCI). EEG measurement is considered an effective tool because it is noninvasive, has few restrictions on the measurement environment, and is simple and easy to use. In this study, we investigated the neurophysiological characteristics of community-dwelling older adults with MCI using EEG. METHODS: Demographic characteristics, cognitive function, physical function, resting-state MRI and electroencephalogram (rs-EEG), event-related potentials (ERPs) during Simon tasks, and task proportion of correct responses and reaction times (RTs) were obtained from 402 healthy controls (HC) and 47 MCI participants. We introduced exact low-resolution brain electromagnetic tomography-independent component analysis (eLORETA-ICA) to assess the rs-EEG network in community-dwelling older adults with MCI. RESULTS: A lower proportion of correct responses to the Simon task and slower RTs were observed in the MCI group (p < 0.01). Despite no difference in brain volume between the HC and MCI groups, significant decreases in dorsal attention network (DAN) activity (p < 0.05) and N2 amplitude of ERP (p < 0.001) were observed in the MCI group. Moreover, DAN activity demonstrated a correlation with education (Rs = 0.32, p = 0.027), global cognitive function (Rs = 0.32, p = 0.030), and processing speed (Rs = 0.37, p = 0.010) in the MCI group. The discrimination accuracy for MCI with the addition of the eLORETA-ICA network ranged from 0.7817 to 0.7929, and the area under the curve ranged from 0.8492 to 0.8495. CONCLUSIONS: The eLORETA-ICA approach of rs-EEG using noninvasive and relatively inexpensive EEG demonstrates specific changes in elders with MCI. It may provide a simple and valid assessment method with few restrictions on the measurement environment and may be useful for early detection of MCI in community-dwelling older adults.


Subject(s)
Cognitive Dysfunction , Independent Living , Humans , Aged , Cognitive Dysfunction/diagnostic imaging , Cognition , Electroencephalography/methods , Brain/diagnostic imaging
8.
JAMA Netw Open ; 6(8): e2330475, 2023 08 01.
Article in English | MEDLINE | ID: mdl-37624598

ABSTRACT

Importance: To prevent motor vehicle collisions by older drivers, the increased risk of collisions should be considered early. Cognitive decline increases the risk of car collisions. Motoric cognitive risk syndrome (MCR), characterized by the presence of cognitive concerns and slow gait, can be assessed conveniently and is useful to assess the risk of dementia. Objective: To examine the association between MCR assessment findings and car collisions among older drivers in Japan. Design, Setting, and Participants: This cross-sectional study used data from a community-based cohort study, the National Center for Geriatrics and Gerontology-Study of Geriatric Syndromes, conducted in Japan from 2015 to 2018. Participants were community-dwelling older adults aged at least 65 years. Data were analyzed from February to March 2023. Exposure: MCR was defined as having subjective memory concerns (SMC) and slow gait. Participants were classified into 4 groups: no SMC or slow gait, only SMC, only slow gait, and MCR. Main Outcomes and Measures: Participants were asked about the experience of car collisions during the last 2 years and near-miss traffic incidents during the previous year through face-to-face interviews. Odds of experiencing a collision or near-miss traffic incident were assessed using logistic regression. Results: Among a total of 12 475 participants, the mean (SD) age was 72.6 (5.2) years, and 7093 (56.9%) were male. The group with only SMC and the group with MCR showed a higher proportion of both car collisions and near-miss traffic incidents than the other groups (adjusted standardized residuals > 1.96; P < .001). Logistic regression analysis showed the only SMC and MCR groups had increased odds of car collisions (only SMC group: odds ratio [OR], 1.48; 95% CI, 1.27-1.72; MCR group: OR, 1.73; 95% CI, 1.39-2.16) and near-miss traffic incidents (only SMC group: OR, 2.07; 95% CI, 1.91-2.25; MCR group: OR, 2.13; 95% CI, 1.85-2.45) after adjusting for confounding factors. After stratifying MCR assessments by objective cognitive impairment, significant associations were still observed. In the only slow gait group, objective cognitive impairment was associated with increased odds of car collisions (OR, 1.96; 95% CI, 1.17-3.28). Conclusions and Relevance: In this cross-sectional study of community-dwelling older drivers in Japan, SMC and MCR were associated with car collisions and near-miss traffic incidents independent from objective cognitive impairment. Future studies should examine the mechanism of these associations in more detail.


Subject(s)
Cognition , Humans , Male , Aged , Female , Cohort Studies , Cross-Sectional Studies , Japan/epidemiology , Syndrome
9.
Int Arch Occup Environ Health ; 96(9): 1225-1234, 2023 11.
Article in English | MEDLINE | ID: mdl-37486376

ABSTRACT

OBJECTIVE: This prospective cohort study investigates the relationship between the onset of disability and employment status. METHODS: We investigated 3,741 community-dwelling adults aged 70 or older, who participated in a population-based cohort study in Japan. Their onset of disability was monitored monthly using the long-term care insurance certification registration system, for five years from baseline. Based on an employment status questionnaire, we categorized participants into three groups: (1) employee, (2) self-employed, and (3) not working. Covariates included demographic information, medical history, number of medications, educational level, living alone, social group engagement, smoking status, walking speed, instrumental activities of daily living, global cognitive function, and depressive symptoms. Missing values were managed using multiple imputation. Cox proportional hazard models were used to calculate hazard ratios (HRs) with 95% confidence intervals (CIs) for incident disability risk by employment status. RESULTS: The disability incidence rates were 15.3/1,000 (95% CIs: 10.7-22.0) person-years among employees, and 33.0/1000 (95% CIs: 24.4-44.6) and 39.6/1000 (95% CIs: 36.5-43.0) person-years among self-employed and non-working participants, respectively. The adjusted HRs for the onset of disability among non-working and self-employed participants were 1.69 (95% CIs: 1.16-2.46, p = 0.007) and 1.63 (95% CIs: 1.01-2.62, p = 0.044) compared with employees, respectively. Similar results were found among men. Among women, disability onset was not associated with employment status. CONCLUSIONS: Older adults' risk of disability onset differed according to their employment status. Older employees had a lower risk of disability onset than those not working or self-employed.


Subject(s)
Disabled Persons , Independent Living , Male , Humans , Female , Aged , Activities of Daily Living , Cohort Studies , Prospective Studies , East Asian People , Employment , Japan/epidemiology
10.
Arch Gerontol Geriatr ; 114: 105066, 2023 11.
Article in English | MEDLINE | ID: mdl-37245490

ABSTRACT

OBJECTIVE: Both physical and social frailty are risk factors for major adverse health-related outcomes and influence each other. However, the longitudinal causal relationship between physical and social frailty has not been clarified. This study aimed to determine the reciprocal relationship between physical and social frailty by age group. METHODS: This study analyzed longitudinal data from a cohort study of older adults aged 65 years or older living in Obu City, Aichi Prefecture, Japan. The study included 2568 participants who participated in both a baseline assessment in 2011 and a follow-up assessment four years later. Participants participated in assessments of physical and cognitive function. Physical frailty was assessed using the Japanese version of the Cardiovascular Health Study criteria. Social frailty was assessed with five questions about daily social activities, social roles, and social relationships. A total frailty score was calculated for each frailty type and used in the cross-lagged panel analysis. The reciprocal relationship between physical and social frailty status was analyzed using a cross-lagged panel model in each of the young-old (n = 2006) and old-old (n = 562) groups. RESULTS: In the old-old group, baseline physical frailty status predicted social frailty status four years later, and social frailty status at baseline predicted physical frailty status four years later. In the young-old group, the effect of social frailty status at baseline on physical frailty at four years was significant; however, the cross-lag effect from baseline physical frailty status to social frailty status at four years was insignificant, indicating that social frailty preceded physical frailty. CONCLUSION: The reciprocal relationship between physical and social frailty differed by age group. The results of this study suggest the importance of considering age when planning strategies to prevent frailty. Although a causal relationship between both physical and social frailty was observed in old-old, social frailty preceded physical frailty in the young-old, suggesting that early prevention of social frailty is important for the prevention of physical frailty.


Subject(s)
Frailty , Humans , Aged , Frailty/epidemiology , Cohort Studies , Independent Living , Cognition , Interpersonal Relations , Geriatric Assessment/methods , Frail Elderly/psychology
11.
JAMA Otolaryngol Head Neck Surg ; 149(5): 439-446, 2023 05 01.
Article in English | MEDLINE | ID: mdl-37022721

ABSTRACT

Importance: Loneliness is suggested to negatively affect physical and mental health and influence the development of disability; however, a consensus on the relationship between loneliness and disability has not been reached. Age-related hearing impairment worsens the daily-life activities of older adults, and the association between loneliness and the incidence of disability may be influenced by hearing impairment. Objective: To examine the association between loneliness and the incidence of disability among older adults stratified by hearing impairment. Design, Setting, and Participants: This prospective observational cohort study included 5563 community-dwelling adults 65 years or older who participated in functional health examinations in Tokai City, Aichi Prefecture, Japan, between September 2017 and June 2018. Data analysis was conducted from August 2022 to February 2023. Main Outcomes and Measures: Cox proportional hazards regression models were used to examine the association between loneliness and the incidence of disability stratified by hearing impairment. Results: Among the 4739 participants who met the inclusion criteria (mean [SD] age, 73.8 [5.5] years; 2622 [55.3%] female), 3792 (80.0%) were without hearing impairment and 947 (20.0%) were with hearing impairment. Of those who reported experiencing loneliness, 1215 (32.0%) were without hearing impairment, and 441 (46.6%) were with hearing impairment. After 2 years, the number of individuals with disabilities was 172 (4.5%) without hearing impairment and 79 (8.3%) with hearing impairment. Cox proportional hazards regression analysis showed no statistically significant association between loneliness and the incidence of disability in a model adjusted for potential confounding factors among community-dwelling older adults without hearing impairment (hazard ratio, 1.10; 95% CI, 0.80-1.52). Among community-dwelling older adults with hearing impairment, a model adjusted for potential confounding factors showed a statistically significant association between loneliness and the incidence of disability (hazard ratio, 1.71; 95% CI, 1.04-2.81). Conclusions and Relevance: This cohort study found that the association between loneliness and the incidence of disability was moderated by the presence or absence of hearing impairment. Hearing impairment is the most common symptom of geriatric syndromes, showing that among the various risk factors, loneliness may require special attention in the prevention of disability in people with hearing impairment.


Subject(s)
Disabled Persons , Hearing Loss , Humans , Female , Aged , Male , Loneliness/psychology , Cohort Studies , Incidence , Prospective Studies , Japan/epidemiology , Hearing Loss/diagnosis
12.
J Am Med Dir Assoc ; 24(8): 1179-1184.e1, 2023 08.
Article in English | MEDLINE | ID: mdl-37062369

ABSTRACT

OBJECTIVES: Previous studies have indicated that sarcopenic obesity is a risk factor for disability onset. However, these studies had disparities in terms of criteria for sarcopenia, study design, or study population. No longitudinal study has investigated the effect of sarcopenic obesity on disability onset in an Asian population using the Asian Working Group for Sarcopenia 2019 criteria for sarcopenia definition. Herein, we aimed to investigate the longitudinal effect of sarcopenic obesity on disability onset in Japanese older adults and extend the generalizability of results to other populations. DESIGN: Longitudinal cohort study. SETTING AND PARTICIPANTS: A total of 4197 Japanese older adults (mean age 74.6 ± 5.0 years, 54.2% women) formed our study population. MEASUREMENTS: Sarcopenia was identified using the Asian Working Group for Sarcopenia 2019 algorithm. Obesity was determined when body fat percentage was ≥25%, or when visceral fat content was ≥100 cm2 for either sex. Disability onset was defined as a new case of long-term care insurance system certification for 5 years from baseline. Missing values were managed with multi-imputation. Cox proportional hazard regression analysis was used with disability onset as dependent variable and group (nonsarcopenia/nonobesity as a reference, nonsarcopenia/obesity, sarcopenia/non-obesity, possible sarcopenia/obesity, possible sarcopenia/non-obesity, sarcopenic obesity) as explanatory variable, and was adjusted for potential confounding factors. RESULTS: When the nonsarcopenia/nonobesity group was used as the reference category, other groups such as possible-sarcopenia/nonobesity [hazard ratio (HR) 1.38, 95% confidential interval (95% CI) 1.29‒1.47, P < .028], possible-sarcopenia/obesity (HR 1.54, 95% CI 1.46‒1.62 P < .001), sarcopenia/nonobesity (HR 2.09, 95% CI 1.96‒2.23, P < .001), and sarcopenic obesity (HR 2.48, 95% CI 2.24‒2.75, P < .001) showed significantly increased HRs. CONCLUSIONS AND IMPLICATIONS: The risk of disability onset because of sarcopenic obesity was exceedingly higher compared with sarcopenia alone among community-dwelling older adults in Japan The health providers should consider assessing the co-existence of sarcopenia and obesity to screen for the risk of disability onset in the community-dwelling population.


Subject(s)
Disabled Persons , Obesity , Sarcopenia , Aged , Female , Humans , Male , East Asian People , Independent Living , Longitudinal Studies , Obesity/epidemiology , Obesity/complications , Sarcopenia/epidemiology , Sarcopenia/complications , Risk , Disabled Persons/statistics & numerical data
13.
Arch Gerontol Geriatr ; 110: 104988, 2023 07.
Article in English | MEDLINE | ID: mdl-36921505

ABSTRACT

PURPOSE: Whether the combination of sarcopenia and systolic blood pressure (SBP) changes the risk of all-cause mortality is unknown. Thus, this study aimed to examine the association between sarcopenia and SBP in community-dwelling older adults and determine whether this association changes the mortality risk. METHODS: Older adults aged ≥65 years participated in the baseline assessment. The participants were classified into six groups according to a combination of the presence or absence of sarcopenia (sarcopenia, non-sarcopenia) and SBP (low SBP, ≤119 mmHg; normal SBP, 120-139 mmHg; high SBP, ≥140 mmHg). The participants were followed for the occurrence of death for 5 years after baseline assessment. Muscle mass, grip strength, and walking speed as indicators of sarcopenia, SBP, and all-cause mortality data for 5 years from baseline assessment were evaluated. RESULTS: This study included 13,569 community-dwelling older adults. During the 5-year follow-up period, 830 participants (6.6%) died. In the Cox proportional hazards models, the risk of all-cause mortality was higher in other non-sarcopenia groups than in the non-sarcopenia/normal SBP group. In particular, those with sarcopenia had a higher mortality risk. CONCLUSIONS: Low or high SBP increased the mortality risk in community-dwelling older adults. In those with sarcopenia, low or high SBP was associated with an even higher mortality risk. Older adults with sarcopenia and low/high blood pressure should be monitored as a population at a higher mortality risk.


Subject(s)
Hypertension , Sarcopenia , Humans , Aged , Blood Pressure , Longitudinal Studies , Sarcopenia/complications , Sarcopenia/epidemiology , Proportional Hazards Models
14.
Gerontology ; 69(5): 641-649, 2023.
Article in English | MEDLINE | ID: mdl-36587607

ABSTRACT

INTRODUCTION: Delaying the onset of disability is important for maintaining independence and quality of life in community-dwelling older adults. Given that social isolation is a significant risk factor for disability, effective means associated with social isolation are needed to alleviate disability. Although information and communication technology (ICT) may be a reasonable measure considering the recent social contexts due to the coronavirus disease 2019 pandemic, further insights are required. This study aimed to investigate whether ICT use can alleviate the onset of disability in community-dwelling older adults with and without social isolation. METHODS: This longitudinal cohort study on 4,346 community-dwelling independent Japanese older adults (mean age, 73.5 ± 5.3 years) was conducted between 2017 and 2018. Participants were classified into four groups based on social isolation (the condition where two or more of the following measures were met: domestic isolation, less social contact, and social disengagement) and ICT users (those who had recently used a computer or a smartphone) and followed up to assess disability incidence for 24 months after baseline assessments. Cox proportional-hazards regression models were used to identify the effect of social isolation and ICT use on the risk of disability onset by adjusting for age, sex, education history, number of medications, eye disease, level of annual income, Mini-Mental State Examination, Geriatric Depression Scale 15, and gait speed. RESULTS: The group comprised nonsocial isolation and ICT users (44.7%), social isolation and ICT users (5.4%), nonsocial isolation and ICT nonusers (41.7%), and social isolation and ICT nonusers (8.2%). At the follow-up, 2.2%, 2.4%, 5.5%, and 12.4% of the participants in the above order developed disability (p < 0.01). Cox regression models revealed a significantly higher risk of disability onset in the social isolation and ICT nonusers group than in the social isolation and ICT users group (HR = 2.939; 95% confidence interval (CI) 1.029-8.397; p = 0.044). In the subgroup analysis stratified by social isolation, ICT use significantly reduced the risk of disability onset in the socially isolated group (HR = 0.320; 95% CI 0.109-0.943; p = 0.039), although the same association was not observed in the nonsocially isolated group (HR = 0.845; 95% CI 0.565-1.264; p = 0.411). CONCLUSION: ICT use can alleviate the onset of disability in socially isolated older adults in a community setting. Considering ICT-applied methods for alleviating disability is beneficial for older adults in social isolation.


Subject(s)
COVID-19 , Quality of Life , Humans , Aged , Longitudinal Studies , COVID-19/epidemiology , Social Isolation , Cohort Studies , Independent Living , Communication , Technology
15.
Geriatrics (Basel) ; 8(1)2023 Jan 14.
Article in English | MEDLINE | ID: mdl-36648918

ABSTRACT

This study aimed to determine how fall prevention self-efficacy and degree of deviation in self-cognition of physical performance, which have recently received attention for their potential to explain falls in combination with a wide variety of fall-related factors, as well as affect falls. Older adults using day-care services (n = 27 with six men, mean age: 81.41 ± 7.43 years) were included in this study. Fall history in the past year, the modified fall efficacy scale (MFES), and physical performance and cognition errors were examined by evaluating the functional reach test (FRT), the stepping over test, and the timed up and go test (TUG), along with a questionnaire. In the fall (n = 14) and non-fall (n = 13) groups, logistic regression analysis using Bayesian statistical methods was used to identify factors associated with falls. The odds ratios for the MFES ranged from 0.97 to 1.0, while those of cognition-error items ranged from 3.1 to 170.72. These findings suggested that deviation in self-cognition of physical performance, particularly overestimation of timed cognitive ability, was a factor with more explanatory power for fall history. Future studies should analyze differences by disease and age group, which were not clarified in this study, to identify more detailed fall risk factors.

16.
Geriatrics (Basel) ; 7(5)2022 Oct 18.
Article in English | MEDLINE | ID: mdl-36286220

ABSTRACT

The number of older people is increasing rapidly, and the number of older people with care needs who live at home is also increasing in Japan. Maintaining their life satisfaction has been a primary challenge. This study aimed to identify factors affecting the life satisfaction of older people with care needs. The study was conducted among older people using homecare services; 126 participants (mean age, 79.33 ± 7.51 years, 54 male) were included in the analysis. Logistic regression analysis with adjustment for age, sex, and economic status was conducted with life satisfaction as the objective variable and the Japanese version of occupational gaps questionnaire (OGQ-J), sense of coherence, functional independence measure, and environmental factors as explanatory variables. The variables that significantly affected life satisfaction were the OGQ-J (p = 0.0352, OR 0.90, 95% CI 0.81-0.99) and environmental factors (p = 0.0083, OR 4.41, 95% CI 1.52-14.11). This study's results indicate the importance of focusing on environmental factors and facilitating the participation of older people with care needs in activities they want to do to maintain and improve their life satisfaction.

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