scholarly journals The hierarchical status of mobility disability predicts future IADL disability: A longitudinal study on aging

10.5772/37462 ◽  
2012 ◽  
Author(s):  
Hui-Ya Chen ◽  
Chih-Jung Yeh ◽  
Ching-Yi Wang ◽  
Hui-Shen Lin ◽  
Meng-Chih Lee
Keyword(s):  
Longitudinal Study ◽  
Mobility Disability ◽  
Iadl Disability ◽  
Hierarchical Status

Social isolation, loneliness and functional disability in Chinese older women and men: a longitudinal study

2020 ◽  
Author(s):  
Lizhi Guo ◽  
Li An ◽  
Fengping Luo ◽  
Bin Yu
Keyword(s):  
Longitudinal Study ◽  
Activities Of Daily Living ◽  
Functional Status ◽  
Social Isolation ◽  
Daily Living ◽  
Functional Disability ◽  
Iadl Disability ◽  
Older Populations ◽  
New Onset

Abstract Objective This study investigated whether loneliness or social isolation is associated with the onset of functional disability over 4 years among Chinese older populations. Setting and Subjects This study used data from the China Health and Retirement Longitudinal Study (CHARLS). Functional status was assessed by activities of daily living (ADL) and instrumental activities of daily living (IADL). Analyses were conducted with data from two waves (2011 and 2015) and were restricted to those respondents aged 50 and older and free of functional disability at baseline [n = 5,154, mean age (SD) = 60.72 (7.51); male, 52.3%]. Method Social isolation, loneliness and covariates were measured at baseline. Follow-up measures of new-onset ADL and IADL disability were obtained 4 years later. We stratified the sample by gender, and then used binary logistic regressions to evaluate the associations between baseline isolation, loneliness and new-onset ADL and IADL disability. Results For women, baseline social isolation was significantly associated with new-onset ADL (OR = 1.18, 95% CI = 1.07–1.30) and IADL (OR = 1.11, 95% CI = 1.01–1.21) disability; no significant association between loneliness and ADL or IADL disability was found. For men, neither social isolation nor loneliness was found to be significantly associated with ADL or IADL disability. Conclusion This longitudinal study found that social isolation, rather than loneliness, was significantly associated with functional disability over 4 years among women (but not men) in China. These findings expand our knowledge about the association between social relationships and functional status among non-Western populations.

scholarly journals Age trajectories of disability in instrumental activities of daily living and disability-free life expectancy among middle-aged and older adults in Taiwan: an 11-year longitudinal study

2020 ◽  
Author(s):  
Wen-Ling Liao ◽  
Yu-Hung Chang
Keyword(s):  
Older Adults ◽  
Longitudinal Study ◽  
Life Expectancy ◽  
Early Onset ◽  
Late Onset ◽  
Remaining Life ◽  
Iadl Disability ◽  
Disability Free Life Expectancy ◽  
Onset Group ◽  
Early Onset Group

Abstract Objectives: This study aims to identify the age trajectories of disability in instrumental activities of daily life (IADLs) over 11 years and their correlates, and to estimate disability-free life expectancy for identified trajectory groups in middle-aged and older adults.Methods: We included 3,118 participants aged 50 and over without IADL limitations at baseline from the Taiwan Longitudinal Study in Aging, followed across 1996-2007. We used group-based trajectory models to identify age trajectories of IADL disability, and multiple logistic regressions to examine their correlates. Sullivan method was used to compute IADL disability-free life expectancy for trajectory groups at different ages.Results: We identified two trajectories groups: 67.7% of participants classified as the late-onset group and 32.3% as the early-onset group. Female (adjusted odds ratio [aOR]: 1.93, 95% confidence interval [95% CI]: 1.54, 2.41), not being employed (aOR: 1.30, 95% CI: 1,08, 1,56), poor/fair self-rated health (aOR: 1.31, 95% CI:1.09, 1.58), hypertension (aOR: 1.32, 95% CI: 1.07, 1.63) , diabetes mellitus (aOR: 2.29, 95% CI: 1.72, 3.07), arthritis (aOR: 1.42, 95% CI: 1.11, 1.81), stroke (aOR: 2.21, 95% CI: 1.04, 4.70), and one-point increase in a 10-item depression scale (aOR: 1.04, 95% CI: 1.02, 1.06) were associated with early-onset of disability, whereas higher education (aOR: 0.59, 95% CI: 0.42, 0.81), regular exercise (aOR: 0.76, 95% CI: 0.62, 0.93), and participating voluntary or club activities (aOR: 0.78, 95% CI: 0.65, 0.93) related to the late-onset. IADL disability-free life expectancies at 65 years old in the late-onset group were 15.6 years for women and 14.4 for men, respectively, comprising 56.6% and 64.2% of their remaining life, whereas those of the early-onset group were 4.8 and 4.6 years for women and men respectively, comprising 22.5% and 27.2% of remaining life.Conclusions: Early-onset of IADLs disability may correlate to chronic conditions, and engagement in employment, exercise, and social participation were associated with a reduced risk of early disability in IADLs.

scholarly journals 17 Is Phenotypical Prefrailty all the Same? A Longitudinal Investigation of Two Prefrailty Subtypes in a Population-Based Longitudinal Study of Ageing

2019 ◽  
Vol 48 (Supplement_3) ◽  
pp. iii1-iii16
Author(s):  
Roman Romero-Ortuno ◽  
Siobhan Scarlett ◽  
Rose Anne Kenny
Keyword(s):  
Physical Activity ◽  
Weight Loss ◽  
Longitudinal Study ◽  
Sex Education ◽  
Population Based ◽  
Frailty Phenotype ◽  
Unexplained Weight Loss ◽  
Iadl Disability ◽  
Baseline Characteristics ◽  
Adl Disability

Abstract Background Fried’s frailty phenotype is defined by five criteria: exhaustion, unexplained weight loss, weakness, slowness and low physical activity. Pre-frailty (PF) meets one or two criteria. PF is of interest as a target for preventative strategies, but it is not known if it is a homogenous syndrome. The objective of this study was to compare the longitudinal trajectories of two PF groups: one defined by exhaustion and/or unexplained weight loss (PF1) and one defined by one or two of the following: weakness, slowness, low physical activity (PF2). Methods: Design and setting  population-based longitudinal study of ageing. Subjects  1,660 PF participants aged ≥50 years from wave 1 of the study (2010), followed 2-yearly over 4 longitudinal waves (2012, 2014, 2016, 2018). Methods  Generalised Estimating Equations (GEE) were used to assess the effect of PF type across waves to predict cumulative mortality and disability in basic (ADL) and independent (IADL) activities of daily living, adjusting for baseline characteristics (age, sex, education, living alone, self-rated health, comorbidity, body mass index). Results In wave 1, there were 687 PF1 and 973 PF2 participants. By wave 5, 64 (9.3%) PF1 and 145 (14.9%) PF2 participants had died. In PF1 participants, mean numbers of ADL and IADL disabilities both increased from 0.2 to 0.3 from wave 1 to wave 5, whilst in PF2 increases were from 0.2 to 0.5. Adjusted GEE models suggested significantly divergent trajectories of IADL disability by wave 2, ADL disability by wave 3, and mortality by wave 4. Conclusion Prefrailty may not be a homogenous biological syndrome. This may have relevance for the design of interventions to delay or reverse frailty in populations.

scholarly journals Age trajectories of disability in instrumental activities of daily living and disability-free life expectancy among middle-aged and older adults in Taiwan: an 11-year longitudinal study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Wen-Ling Liao ◽  
Yu-Hung Chang
Keyword(s):  
Older Adults ◽  
Longitudinal Study ◽  
Life Expectancy ◽  
Early Onset ◽  
Late Onset ◽  
Remaining Life ◽  
Iadl Disability ◽  
Disability Free Life Expectancy ◽  
Onset Group ◽  
Early Onset Group

Abstract Background This study aims to identify the age trajectories of disability in instrumental activities of daily life (IADLs) over 11 years and their correlates, and to estimate disability-free life expectancy for identified trajectory groups in middle-aged and older adults. Methods We included 3118 participants aged 50 and over without IADL limitations at baseline from the Taiwan Longitudinal Study in Aging, followed across 1996–2007. We used group-based trajectory models to identify age trajectories of IADL disability, and multiple logistic regressions to examine their correlates. Sullivan method was used to compute IADL disability-free life expectancy for trajectory groups at different ages. Results We identified two trajectories groups: 67.7% of participants classified as the late-onset group and 32.3% as the early-onset group. Female (adjusted odds ratio [aOR]: 1.93, 95% confidence interval [95% CI]: 1.54, 2.41), not being employed (aOR: 1.30, 95% CI: 1,08, 1,56), poor/fair self-rated health (aOR: 1.31, 95% CI:1.09, 1.58), hypertension (aOR: 1.32, 95% CI: 1.07, 1.63), diabetes mellitus (aOR: 2.29, 95% CI: 1.72, 3.07), arthritis (aOR: 1.42, 95% CI: 1.11, 1.81), stroke (aOR: 2.21, 95% CI: 1.04, 4.70), and one-point increase in a 10-item depression scale (aOR: 1.04, 95% CI: 1.02, 1.06) were associated with early-onset of disability, whereas higher education (aOR: 0.59, 95% CI: 0.42, 0.81), regular exercise (aOR: 0.76, 95% CI: 0.62, 0.93), and participating voluntary or club activities (aOR: 0.78, 95% CI: 0.65, 0.93) related to the late-onset. IADL disability-free life expectancies at 65 years old in the late-onset group were 15.6 years for women and 14.4 for men, respectively, comprising 56.6 and 64.2% of their remaining life, whereas those of the early-onset group were 4.8 and 4.6 years for women and men respectively, comprising 22.5 and 27.2% of remaining life. Conclusions Early-onset of IADLs disability may correlate to chronic conditions, and engagement in employment, exercise, and social participation were associated with a reduced risk of early disability in IADLs.

scholarly journals Age trajectories of disability in instrumental activities of daily living and disability-free life expectancy among middle-aged and older adults in Taiwan: an 11-year longitudinal study

2020 ◽  
Author(s):  
Wen-Ling Liao ◽  
Yu-Hung Chang
Keyword(s):  
Older Adults ◽  
Longitudinal Study ◽  
Life Expectancy ◽  
Early Onset ◽  
Late Onset ◽  
Remaining Life ◽  
Iadl Disability ◽  
Disability Free Life Expectancy ◽  
Onset Group ◽  
Early Onset Group

Abstract Background: This study aims to identify the age trajectories of disability in instrumental activities of daily life (IADLs) over 11 years and their correlates, and to estimate disability-free life expectancy for identified trajectory groups in middle-aged and older adults. Methods: We included 3,118 participants aged 50 and over without IADL limitations at baseline from the Taiwan Longitudinal Study in Aging, followed across 1996-2007. We used group-based trajectory models to identify age trajectories of IADL disability, and multiple logistic regressions to examine their correlates. Sullivan method was used to compute IADL disability-free life expectancy for trajectory groups at different ages. Results: We identified two trajectories groups: 67.7% of participants classified as the late-onset group and 32.3% as the early-onset group. Female (adjusted odds ratio [aOR]: 1.93, 95% confidence interval [95% CI]: 1.54, 2.41), not being employed (aOR: 1.30, 95% CI: 1,08, 1,56), poor/fair self-rated health (aOR: 1.31, 95% CI:1.09, 1.58), hypertension (aOR: 1.32, 95% CI: 1.07, 1.63) , diabetes mellitus (aOR: 2.29, 95% CI: 1.72, 3.07), arthritis (aOR: 1.42, 95% CI: 1.11, 1.81), stroke (aOR: 2.21, 95% CI: 1.04, 4.70), and one-point increase in a 10-item depression scale (aOR: 1.04, 95% CI: 1.02, 1.06) were associated with early-onset of disability, whereas higher education (aOR: 0.59, 95% CI: 0.42, 0.81), regular exercise (aOR: 0.76, 95% CI: 0.62, 0.93), and participating voluntary or club activities (aOR: 0.78, 95% CI: 0.65, 0.93) related to the late-onset. IADL disability-free life expectancies at 65 years old in the late-onset group were 15.6 years for women and 14.4 for men, respectively, comprising 56.6% and 64.2% of their remaining life, whereas those of the early-onset group were 4.8 and 4.6 years for women and men respectively, comprising 22.5% and 27.2% of remaining life. Conclusions: Early-onset of IADLs disability may correlate to chronic conditions, and engagement in employment, exercise, and social participation were associated with a reduced risk of early disability in IADLs.

School Achievement and Adult Qualifications among Adoptees: A Longitudinal Study

1998 ◽  
Vol 39 (5) ◽  
pp. 669-685 ◽  
Author(s):  
Barbara Maughan ◽  
Stephan Collishaw ◽  
Andrew Pickles
Keyword(s):  
Longitudinal Study ◽  
School Achievement

A Longitudinal Posthumous Study of Letter Writing in a Late Elderly Case

2015 ◽  
Vol 20 (1) ◽  
pp. 22-33
Author(s):  
Angel Ball ◽  
Jean Neils-Strunjas ◽  
Kate Krival
Keyword(s):  
Longitudinal Study ◽  
Elderly Woman ◽  
Semantic Content ◽  
Cognitive Status ◽  
Letter Writing ◽  
Linguistic Performance ◽  
Errors Analysis ◽  
Normal Status

This study is a posthumous longitudinal study of consecutive letters written by an elderly woman from age 89 to 93. Findings reveal a consistent linguistic performance during the first 3 years, supporting “normal” status for late elderly writing. She produced clearly written cursive form, intact semantic content, and minimal spelling and stroke errors. A decline in writing was observed in the last 6–9 months of the study and an analysis revealed production of clausal fragmentation, decreasing semantic clarity, and a higher frequency of spelling, semantic, and stroke errors. Analysis of writing samples can be a valuable tool in documenting a change in cognitive status differentiated from normal late aging.

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