Hiroki Inagaki
Biographic Data
| ID | 6639216 |
|---|---|
| NAME | Hiroki Inagaki |
| GIVEN NAMES | Hiroki |
| FAMILY NAME | Inagaki |
| SIGNATURE | INAGAKI H |
| AFFILIATIONS | Tokyo Metropolitan Institute of Gerontology |
| ORCID | 0000-0002-5011-7974 |
| VERIFIED | Yes |
| TOTAL WORKS | 11 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 11 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2019 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 0 |
Does the Japan Science and Technology Agency Index of Competence ( JST ‐ IC ) Predict Mortality? Findings From the Sonic Study
A higher Japan Science and Technology Agency Index of Competence (JST-IC) score-an index of higher-level functional ability among older Japanese adults-was associated with a lower long-term risk of all-cause mortality, with significant associations observed across all age groups and among those in their 80s, but not among those in their 70s.
The Current Challenges and Future Prospects of the Japan Science and Technology Agency Index of Competence ( JST ‐ IC )
Data sharing not applicable to this article as no datasets were generated or analyzed during the current study.
Sex-specific factors associated with acceptance of smartwatches among urban older adults
Smartwatches (SW) are wearable devices that support daily life and monitor an individual’s health and activity status. This information is utilized to promote behavior modification, which could help prevent chronic diseases and manage the health of older adults. Despite being interested in SWs, older adults tend to decrease their SW usage as they age. Therefore, understanding the acceptance of SWs among older individuals can facilitate individual…
Early- to late-life environmental factors and late-life global cognition in septuagenarian and octogenarians
This study aimed to evaluate cognitively stimulating environments throughout life and to examine direct and indirect associations between these environments and late-life cognition. Early-life education, three domains of work complexity (data, people, and things) based on the longest-held occupation, and engagement in late-life leisure activities (LAs) were assessed. A structural equation model was developed using cross-sectional data of 1721 Jap…
Living Alone, Cognitive Function, and Well-Being of Japanese Older Men and Women
This study examined the interaction of living alone and cognitive decline in relation to the well-being of older men and women. We analyzed the data from a cross-sectional, self-administered questionnaire survey of community-dwelling older adults in Tokyo, who were aged 65+ and not on long-term care. The questionnaire included the 10-item self-administered dementia checklist (SDC), the WHO-5 Well-Being Scale, a question on their living arrangemen…
The Relationship Between Cognitive Decline and All-Cause Mortality Is Modified by Living Alone and a Small Social Network
Although living alone and having a small social network represent an isolated status, their modifying effects were the opposite. These findings indicate that the isolation type should be considered when implementing support strategies for older adults with cognitive decline or dementia
Factors Predicting Tongue Pressure Decline among Community-Dwelling Older Adults
A limited number of longitudinal studies have explored factors contributing to decreases in tongue pressure (TP). This longitudinal study aimed to clarify the factors affecting TP decline among community-dwelling older adults. We followed the Takashimadaira Study participants with a baseline TP ≥ 30 kPa for 2 years. A TP of <30 kPa at follow-up was defined as TP decline. We used Poisson regression with robust standard errors to explore the factor…
Relationship between Personality and Mortality among Japanese Older Adults
Personality is one of the fundamental factors in determining longevity. We used a 14-year mortality surveillance to investigate the relationship between the Big Five personality traits and all-cause mortality among older adults dwelling in a Japanese community. Individuals over 65 years old (484 males and 743 females) were recruited for the study. We used the NEO Five-Factor Inventory to assess the Big Five personality traits: neuroticism, extrav…
Construct Validity of a New Health Assessment Questionnaire for the National Screening Program of Older Adults in Japan
The Japanese government has implemented a new screening program to promote measures to avoid worsening lifestyle-related diseases and frailty among the older population. In this effort, the government formulated a new health assessment questionnaire for the screening program of old-old adults aged ≥75 years. The questionnaire comprises 15 items, of which 12 address frailty, two address general health status, and one addresses smoking habits. This…
A Two-Year Longitudinal Study of the Association between Oral Frailty and Deteriorating Nutritional Status among Community-Dwelling Older Adults
Community-dwelling older adults with oral frailty had an increased risk of deteriorating nutritional status
Does community social capital buffer the relationship between educational disadvantage and cognitive impairment? A multilevel analysis in Japan
Community social capital appears to have a protective role in determining cognitive function in old age. Our findings may facilitate the development of new community-based strategies to combat dementia
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Does community social capital buffer the relationship between educational disadvantage and cognitive impairment? A multilevel analysis in Japan
Community social capital appears to have a protective role in determining cognitive function in old age. Our findings may facilitate the development of new community-based strategies to combat dementia
A Two-Year Longitudinal Study of the Association between Oral Frailty and Deteriorating Nutritional Status among Community-Dwelling Older Adults
Community-dwelling older adults with oral frailty had an increased risk of deteriorating nutritional status
Factors Predicting Tongue Pressure Decline among Community-Dwelling Older Adults
A limited number of longitudinal studies have explored factors contributing to decreases in tongue pressure (TP). This longitudinal study aimed to clarify the factors affecting TP decline among community-dwelling older adults. We followed the Takashimadaira Study participants with a baseline TP ≥ 30 kPa for 2 years. A TP of <30 kPa at follow-up was defined as TP decline. We used Poisson regression with robust standard errors to explore the factor…
Relationship between Personality and Mortality among Japanese Older Adults
Personality is one of the fundamental factors in determining longevity. We used a 14-year mortality surveillance to investigate the relationship between the Big Five personality traits and all-cause mortality among older adults dwelling in a Japanese community. Individuals over 65 years old (484 males and 743 females) were recruited for the study. We used the NEO Five-Factor Inventory to assess the Big Five personality traits: neuroticism, extrav…
Construct Validity of a New Health Assessment Questionnaire for the National Screening Program of Older Adults in Japan
The Japanese government has implemented a new screening program to promote measures to avoid worsening lifestyle-related diseases and frailty among the older population. In this effort, the government formulated a new health assessment questionnaire for the screening program of old-old adults aged ≥75 years. The questionnaire comprises 15 items, of which 12 address frailty, two address general health status, and one addresses smoking habits. This…
Early- to late-life environmental factors and late-life global cognition in septuagenarian and octogenarians
This study aimed to evaluate cognitively stimulating environments throughout life and to examine direct and indirect associations between these environments and late-life cognition. Early-life education, three domains of work complexity (data, people, and things) based on the longest-held occupation, and engagement in late-life leisure activities (LAs) were assessed. A structural equation model was developed using cross-sectional data of 1721 Jap…
Living Alone, Cognitive Function, and Well-Being of Japanese Older Men and Women
This study examined the interaction of living alone and cognitive decline in relation to the well-being of older men and women. We analyzed the data from a cross-sectional, self-administered questionnaire survey of community-dwelling older adults in Tokyo, who were aged 65+ and not on long-term care. The questionnaire included the 10-item self-administered dementia checklist (SDC), the WHO-5 Well-Being Scale, a question on their living arrangemen…
The Relationship Between Cognitive Decline and All-Cause Mortality Is Modified by Living Alone and a Small Social Network
Although living alone and having a small social network represent an isolated status, their modifying effects were the opposite. These findings indicate that the isolation type should be considered when implementing support strategies for older adults with cognitive decline or dementia
Sex-specific factors associated with acceptance of smartwatches among urban older adults
Smartwatches (SW) are wearable devices that support daily life and monitor an individual’s health and activity status. This information is utilized to promote behavior modification, which could help prevent chronic diseases and manage the health of older adults. Despite being interested in SWs, older adults tend to decrease their SW usage as they age. Therefore, understanding the acceptance of SWs among older individuals can facilitate individual…
Does the Japan Science and Technology Agency Index of Competence ( JST ‐ IC ) Predict Mortality? Findings From the Sonic Study
A higher Japan Science and Technology Agency Index of Competence (JST-IC) score-an index of higher-level functional ability among older Japanese adults-was associated with a lower long-term risk of all-cause mortality, with significant associations observed across all age groups and among those in their 80s, but not among those in their 70s.
The Current Challenges and Future Prospects of the Japan Science and Technology Agency Index of Competence ( JST ‐ IC )
Data sharing not applicable to this article as no datasets were generated or analyzed during the current study.
Medicine (8 works) · Gerontology (7 works) · Psychology (7 works) · Cognition (5 works) · Health disparities and outcomes (5 works) · Confidence interval (4 works) · Demography (4 works) · Demography (4 works) · Environmental health (4 works) · Internal Medicine (4 works)