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1.
Int J Geriatr Psychiatry ; 39(9): e6149, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39289786

RESUMO

OBJECTIVES: Hearing and vision impairments are associated with cognitive decline and dementia risk. Explanations for this include age-related processes impacting on sensory and cognitive function (common cause), or sensory impairments having a direct or indirect impact on cognition via social engagement, depression and physical activity (cascade). We tested whether associations between hearing, vision and episodic memory were mediated by allostatic load, social engagement, depression and physical activity. METHODS: We used structural equation modelling with cross-sectional data from the USA (n = 4746, aged 50-101), England (n = 4907, aged 50-89) and Ireland (4292, aged 50-80) to model factors related to the common cause (indexed by allostatic load) and the cascade hypothesis with respect to cognitive ability (episodic memory). RESULTS: Poorer hearing/vision was associated with lower social engagement, depression and sedentary lifestyle. Poor vision was not related to allostatic load, and poor hearing was associated with allostatic load in only one data set, contributing to a common-cause hypothesis. Lower social engagement, depression and a sedentary lifestyle were associated with poorer episodic memory, contributing to the cascade hypothesis. Using effect estimates to calculate the proportion of the total effects mediated by the combined mediator variables, up to two fifths of the relationship between hearing and vision with episodic memory can be explained by the mediators. CONCLUSIONS: The association between hearing, vision and episodic memory is mediated by allostatic load, social engagement, depression, and physical activity. The finding that social engagement, depression, and physical activity mediate the association between sensory abilities and cognitive function supported the cascade hypotheses. Interventions to improve healthy lifestyle, reduce depression and foster social engagement of older people with sensory impairments are likely to be beneficial in preventing cognitive decline and dementia.


Assuntos
Disfunção Cognitiva , Depressão , Transtornos da Visão , Humanos , Idoso , Masculino , Feminino , Idoso de 80 Anos ou mais , Estados Unidos/epidemiologia , Irlanda/epidemiologia , Inglaterra/epidemiologia , Estudos Transversais , Pessoa de Meia-Idade , Transtornos da Visão/epidemiologia , Transtornos da Visão/fisiopatologia , Transtornos da Visão/psicologia , Disfunção Cognitiva/epidemiologia , Disfunção Cognitiva/fisiopatologia , Depressão/epidemiologia , Perda Auditiva/epidemiologia , Perda Auditiva/psicologia , Memória Episódica , Exercício Físico/fisiologia , Alostase/fisiologia , Cognição/fisiologia , Análise de Classes Latentes , Participação Social
2.
Age Ageing ; 52(2)2023 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-36794711

RESUMO

OBJECTIVE: This study aimed to investigate the relationships between trajectories of change in self-reported hearing over eight years with subsequent effects on cognition, measured using episodic memory. METHODS: Data were drawn from 5 waves (2008-2016) of the English Longitudinal Study of England (ELSA) and the Health and Retirement Study (HRS), involving 4,875 individuals aged 50+ at the baseline in ELSA and 6,365 in HRS. The latent growth curve modelling was used to identify trajectories of hearing over eight years, and linear regression models were performed to investigate the relationship between hearing trajectory memberships and episodic memory scores, controlling for confounding factors. RESULTS: Five trajectories of hearing (stable very good, stable fair, poor to fair/good, good to fair, and very good to good) were retained in each study. Individuals whose hearing remains suboptimal and those whose hearing deteriorates within suboptimal levels throughout eight years have significantly poorer episodic memory scores at follow-up than those with stable very good hearing. Conversely, individuals whose hearing declines but is within an optimal category at baseline do not see significantly poorer episodic memory scores than those with consistently optimal hearing. There was no significant relationship between individuals whose hearing improved from suboptimal baseline levels to optimal by follow-up and memory in ELSA. However, analysis using HRS data shows a significant improvement for this trajectory group (-1.260, P < 0.001). CONCLUSIONS: Either stable fair or deterioration in hearing is associated with worse cognitive function, both stable good or improving hearing is associated with better cognitive function specifically episodic memory.


Assuntos
Cognição , Memória Episódica , Humanos , Estados Unidos/epidemiologia , Estudos Longitudinais , Autorrelato , Reino Unido/epidemiologia , Audição
3.
Age Ageing ; 52(3)2023 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-36995138

RESUMO

BACKGROUND: frailty is a condition of reduced function and health due to ageing processes and is associated with a higher risk of falls, hospitalisation, disability and mortality. OBJECTIVE: to determine the relationship between household wealth and neighbourhood deprivation with frailty status, independently of demographic factors, educational attainment and health behaviours. DESIGN: population-based cohort study. SETTING: communities in England. SUBJECTS: in total 17,438 adults aged 50+ from the English Longitudinal Study of Ageing. METHODS: multilevel mixed-effects ordered logistic regression was used in this study. Frailty was measured using a frailty index. We defined small geographic areas (neighbourhoods) using English Lower layer Super Output Areas. Neighbourhood deprivation was measured by the English Index of Multiple Deprivation, grouped into quintiles. Health behaviours included in this study are smoking and frequency of alcohol consumption. RESULTS: the proportion of respondents who were prefrail and frail were 33.8% [95% confidence interval (CI) 33.0-34.6%] and 11.7 (11.1-12.2)%, respectively. Participants in the lowest wealth quintile and living in the most deprived neighbourhood quintile had 1.3 (95% CI = 1.2-1.3) and 2.2 (95% CI = 2.1-2.4) times higher odds of being prefrail and frail, respectively, than the wealthiest participants living in the least deprived neighbourhoods Living in more deprived neighbourhood and poorer wealth was associated with an increased risk of becoming frail. Those inequalities did not change over time. CONCLUSIONS: in this population-based sample, living in a deprived area or having low wealth was associated with frailty in middle-aged and older adults. This relationship was independent of the effects of individual demographic characteristics and health behaviours.


Assuntos
Fragilidade , Humanos , Pessoa de Meia-Idade , Idoso , Estudos Longitudinais , Estudos de Coortes , Fragilidade/diagnóstico , Fragilidade/epidemiologia , Fatores Socioeconômicos , Inglaterra/epidemiologia
4.
Eur J Public Health ; 31(1): 79-86, 2021 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-33020838

RESUMO

BACKGROUND: Socioeconomic status is associated with health status among older adults, including hearing and vision impairments, and healthcare system performance is an important consideration in examining that association. We explored the link between a country's healthcare system performance and the hearing and visual impairments of its people in Europe. METHODS: This study enrolled 65 332 individuals aged 50+ from 17 countries participating in the Survey of Health, Ageing and Retirement in Europe Wave 6. We used latent class analysis to identify groups of countries based on six domains of healthcare system performance. We then performed multiple logistic regressions to quantify the association between socioeconomic status and hearing and visual impairments adjusted for demographic and other co-variates; finally, we compared the patterns of observed associations in each of the country groups. RESULTS: The latent class analysis separated countries into three groups based on the performance of their healthcare systems: poor, moderate and high. Respondents in countries with moderate and poor healthcare performance were more likely to experience hearing and visual impairment than those in countries with high healthcare performance. With respect to hearing and visual impairments, wealth gradients at the individual level varied among countries in different healthcare performance groups, with less wealth associated with worse hearing and seeing only in the countries with moderate and poor healthcare performance. CONCLUSION: The relationships between wealth and hearing and visual impairments differ among countries with different healthcare performance.


Assuntos
Audição , Classe Social , Idoso , Atenção à Saúde , Europa (Continente)/epidemiologia , Humanos , Fatores Socioeconômicos , Transtornos da Visão/epidemiologia
5.
J Sleep Res ; 29(3): e12898, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-31313420

RESUMO

The relationships between older age and sleep efficiency have traditionally been assessed using cross-sectional studies that ignore changes within individuals as they age. This research examines the determinants of sleep efficiency, the heterogeneity in an individual's sleep efficiency trajectory across a period of up to 27 years in later life and its associations with health. The University of Manchester Longitudinal Study of Cognition in Normal Healthy Old Age cohort (n = 6,375; age 42-94 years) was used in this study. Depression and health data were collected using self-report validated instruments (Cornell Medical Index, Beck Depression Inventory and Geriatric Depression Scale). Longitudinal sleep and sociodemographic data were collected using a study-specific self-report questionnaire. A mixed-effect model was performed for sleep efficiency with adjustments for time-invariant and time-variant predictors. Latent class analysis was used to demonstrate subgroups of sleep efficiency trajectories and associations between sleep efficiency clusters and health history of the participants were investigated. Older adults have decreased sleep efficiency over time, with 18.6% decline between 40 and 100 years of age. Three sleep efficiency trajectory clusters were identified: high (32%), medium (50%) and low sleep efficiency (18%). Belonging to the high sleep efficiency cluster was associated with having lower prevalence of hypertension, circulatory problems, general arthritis, breathing problems and recurrent episodes of depression compared to the low efficiency cluster. Overall, ageing decreases sleep efficiency. However, there are detectable subgroups of sleep efficiency that are related to prevalence of different diseases.


Assuntos
Nível de Saúde , Sono/fisiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Envelhecimento , Estudos de Coortes , Estudos Transversais , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários
6.
World Dev ; 134: 105044, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32834371

RESUMO

COVID-19 accentuates the case for a global, rather than an international, development paradigm. The novel disease is a prime example of a development challenge for all countries, through the failure of public health as a global public good. The COVID-19 pandemic has highlighted the falsity of any assumption that the global North has all the expertise and solutions to tackle global challenges, and has further highlighted the need for multi-directional learning and transformation in all countries towards a more sustainable and equitable world. We illustrate our argument for a global development paradigm by examining the implications of the COVID-19 pandemic across four themes or 'vignettes': global value chains, digitalisation, debt, and climate change. We conclude that development studies must adapt to a very different context from when the field emerged in the mid-20th century.

7.
J Women Aging ; 32(5): 563-577, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31057079

RESUMO

We examine the association between premature natural menopause and cognitive function among older women in Indonesia. Data come from Indonesia Family Life Survey (IFLS) 2014 (N = 1,031 menopausal women). Multilevel ordered logistic regression was used to take into account unobserved factors in the women's communities, also considering a range of potential confounding factors including their reproductive histories, lifestyles, and sociodemographic characteristics. The findings show that premature natural menopause was significantly associated with lower cognitive function in later life (ß = -0.97, P< .01, CI -1.61-(-0.33)). The findings were robust against potential confounding factors including reproductive history, lifestyle, and sociodemographic characteristics.


Assuntos
Cognição , Menopausa Precoce , Adulto , Idoso , Escolaridade , Feminino , Humanos , Renda/estatística & dados numéricos , Indonésia/epidemiologia , Estilo de Vida , Modelos Logísticos , Estudos Longitudinais , Menopausa , Pessoa de Meia-Idade , História Reprodutiva , Inquéritos e Questionários , Adulto Jovem
8.
Clin Endocrinol (Oxf) ; 88(3): 479-490, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29178359

RESUMO

OBJECTIVE: Elevated luteinizing hormone (LH) with normal testosterone (T) suggests compensated dysregulation of the gonadal axis. We describe the natural history, risk factors and clinical parameters associated with the development of high LH (HLH, LH >9.4 U/L) in ageing men with normal T (T ≥ 10.5 nmol/L). DESIGN, PATIENTS AND MEASUREMENTS: We conducted a 4.3-year prospective observational study of 3369 community-dwelling European men aged 40-79 years. Participants were classified as follows: incident (i) HLH (n = 101, 5.2%); persistent (p) HLH (n = 128, 6.6%); reverted (r) HLH (n = 46, 2.4%); or persistent normal LH (pNLH, n = 1667, 85.8%). Potential predictors and changes in clinical features associated with iHLH and rHLH were analysed using regression models. RESULTS: Age >70 years (OR = 4.12 [2.07-8.20]), diabetes (OR = 2.86 [1.42-5.77]), chronic pain (OR = 2.53 [1.34-4.77]), predegree education (OR = 1.79 [1.01-3.20]) and low physical activity (PASE ≤ 78, OR = 2.37 [1.24-4.50]) predicted development of HLH. Younger age (40-49 years, OR = 8.14 [1.35-49.13]) and nonsmoking (OR = 5.39 [1.48-19.65]) predicted recovery from HLH. Men with iHLH developed erectile dysfunction, poor health, cardiovascular disease (CVD) and cancer more frequently than pNLH men. In pHLH men, comorbidities, including CVD, developed more frequently, and cognitive and physical function deteriorated more, than in pNLH men. Men with HLH developed primary hypogonadism more frequently (OR = 15.97 [5.85-43.60]) than NLH men. Men with rHLH experienced a small rise in BMI. CONCLUSIONS: Elevation of LH with normal T is predicted by multiple factors, reverts frequently and is not associated with unequivocal evidence of androgen deficiency. High LH is a biomarker for deteriorating health in aged men who tend to develop primary hypogonadism.


Assuntos
Hormônio Luteinizante/metabolismo , Testosterona/sangue , Adulto , Fatores Etários , Idoso , Envelhecimento , Disfunção Erétil/etiologia , Europa (Continente) , Humanos , Hipogonadismo/etiologia , Hormônio Luteinizante/sangue , Masculino , Pessoa de Meia-Idade , História Natural , Prognóstico , Estudos Prospectivos , Fatores de Risco
9.
BMC Cancer ; 18(1): 208, 2018 03 06.
Artigo em Inglês | MEDLINE | ID: mdl-29506486

RESUMO

BACKGROUND: Cancer screening awareness and participation may be lower in low- and middle-income countries that lack established national screening programmes compared with those that do. We evaluated potential determinants of awareness about and participation in breast and cervical cancer screening, and breast self-examination (BSE) in women using survey data from Indonesia. METHODS: From the fifth Indonesian Family Life Survey (2014-2015), a total of 5397 women aged 40 and older without any history of cancer who responded to questionnaires concerning Pap smears, mammography, and BSE were included. Multilevel modelling was used to assess potential determinants in relation to awareness about Pap smears and mammography, and participation in Pap smears and BSE practice. Multivariable analyses were performed to identify independent predictors of cancer screening. RESULTS: Of the 5397 respondents, 1058 (20%) women were aware of Pap smears, of which 297 had never had the procedure. Only 251 (5%) participants were aware of mammography. A total of 605 (12%) of women reported they performed BSE. Higher education and household expenditure were consistently associated with higher odds of awareness about Pap smears and mammography (e.g. odds ratio [OR] of being aware of Pap smear and mammography: 7.82 (95% CI: 6.30-9.70) and 7.70 (6.19-9.58), respectively, for high school graduates compared to women with less educational attainment in the multivariable models), and participation in Pap smears and BSE. We also identified enabling factors linked with greater cancer screening awareness and participation, including health insurance, shorter distance to health services, and social participation. CONCLUSION: There are socioeconomic disparities in cancer screening awareness and participation among Indonesian women. Our findings may help inform targeted health promotion and screening for cancer in the presence of limited resources.


Assuntos
Neoplasias da Mama/diagnóstico , Autoexame de Mama/psicologia , Detecção Precoce de Câncer/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Neoplasias do Colo do Útero/diagnóstico , Esfregaço Vaginal/psicologia , Adulto , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/psicologia , Autoexame de Mama/estatística & dados numéricos , Feminino , Seguimentos , Humanos , Indonésia/epidemiologia , Pessoa de Meia-Idade , Aceitação pelo Paciente de Cuidados de Saúde , Vigilância da População , Prognóstico , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/psicologia , Esfregaço Vaginal/estatística & dados numéricos
10.
Int J Geriatr Psychiatry ; 33(8): 1127-1131, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29869343

RESUMO

BACKGROUND: The number of older people needing dementia care is projected to rise rapidly, and local districts are now charged with responding to this need. But evidence on local area factors of dementia is scarce. We studied the odds of dementia prevalence and its individual risk factors enriched with area factors. MATERIALS AND METHODS: This study analysed objectively assigned dementia prevalence in people aged 60 and over living in community in England, drawing data from the English Longitudinal Study of Ageing 2014 to 2015 and local districts statistics using multilevel logistic models. Dementia status is ascertained using a modified version of the Telephone Interview for Cognitive Status. A number of individual risk factors were considered including social determinants, internet use, social connections, and health behaviours; 2 contextual factors were included: the index of multiple deprivation and land use mix. RESULTS: The prevalence of dementia by this method is 8.8% (95% confidence interval 7.7%-9.2%) in older adults in England. Maps of dementia prevalence across districts showed prevalent areas. In the full model, no area characteristics were significant in predicting dementia prevalence. Education, social connections, internet use, and moderate to vigorous physical activity showed protective associations. CONCLUSION: Dementia in older adults in England is largely predicted by individual characteristics, although some districts have a large share of their population with dementia. Given the health and social care costs associated with dementia, differential interventions and support to districts and to groups of individuals defined by these characteristics seem warranted.


Assuntos
Demência/epidemiologia , Idoso , Idoso de 80 Anos ou mais , Demência/etiologia , Escolaridade , Inglaterra/epidemiologia , Exercício Físico , Feminino , Humanos , Acesso à Internet/estatística & dados numéricos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Rede Social , Fatores Socioeconômicos
11.
Age Ageing ; 47(4): 575-581, 2018 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-29697748

RESUMO

INTRODUCTION: highly prevalagent hearing and vision sensory impairments among older people may contribute to the risk of cognitive decline and pathological impairments including dementia.This study aims to determine whether single and dual sensory impairment (hearing and/or vision) are independently associated with cognitive decline among older adults and to describe cognitive trajectories according to their impairment pattern. MATERIAL AND METHODS: we used data from totals of 13,123, 11,417 and 21,265 respondents aged 50+ at baseline from the Health and Retirement Study (HRS), the English Longitudinal Study of Ageing (ELSA) and the Survey of Health, Ageing and Retirement in Europe (SHARE), respectively. We performed growth curve analysis to identify cognitive trajectories, and a joint model was used to deal with attrition problems in longitudinal ageing surveys. RESULTS: respondents with a single sensory impairment had lower episodic memory score than those without sensory impairment in HRS (ß = -0.15, P < 0.001), ELSA (ß = -0.14, P < 0.001) and SHARE (ß = -0.26, P < 0.001). The analysis further shows that older adults with dual sensory impairment in HRS (ß = -0.25, P < 0.001), ELSA (ß = -0.35, P < 0.001) and SHARE (ß = -0.68, P < 0.001) remembered fewer words compared with those with no sensory impairment. The stronger associations between sensory impairment and lower episodic memory levels were found in the joint model which accounted for attrition. CONCLUSIONS: hearing and/or vision impairments are a marker for the risk of cognitive decline that could inform preventative interventions to maximise cognitive health and longevity. Further studies are needed to investigate how sensory markers could inform strategies to improve cognitive ageing.


Assuntos
Cognição , Envelhecimento Cognitivo/psicologia , Disfunção Cognitiva/epidemiologia , Transtornos da Audição/epidemiologia , Pessoas com Deficiência Auditiva/psicologia , Transtornos da Visão/epidemiologia , Pessoas com Deficiência Visual/psicologia , Fatores Etários , Idoso , Disfunção Cognitiva/diagnóstico , Disfunção Cognitiva/psicologia , Europa (Continente)/epidemiologia , Feminino , Avaliação Geriátrica , Transtornos da Audição/diagnóstico , Transtornos da Audição/psicologia , Humanos , Masculino , Memória Episódica , Pessoa de Meia-Idade , Medição de Risco , Fatores de Risco , Estados Unidos/epidemiologia , Transtornos da Visão/diagnóstico , Transtornos da Visão/psicologia
12.
BMC Geriatr ; 18(1): 255, 2018 10 23.
Artigo em Inglês | MEDLINE | ID: mdl-30352552

RESUMO

BACKGROUND: Difference in life expectancy between males and females has been suggested to rest on sex difference in physiological dysregulation. But allostatic load, a physiological index, has not been carefully examined for an extended period beyond middle age. We aim to draw longitudinal trajectories of allostatic load in a national sample of older Americans and Britons; also to examine sex-based trajectories and factors behind their differences. METHODS: We studied men and women aged ≥50 years participating in the Health and Retirement Study Waves 8-11, 2006-2012 (N = 15,583 person-years) and the English Longitudinal Study of Ageing Waves 2, 4 and 6, 2004-2012 (N = 14,765 person-years). Because of the difference in provenance, we included different number of biomarkers to calculate allostatic load in HRS and ELSA. In HRS we used 8 biomarkers (systolic and diastolic blood pressure, haemoglobin A1c, high-density lipoprotein, total cholesterol, waist circumference, cystatin C, and C-reactive protein), while ELSA allostatic load was constructed from 10 biomarkers (systolic and diastolic blood pressure, haemoglobin A1c, high-density lipoprotein, total cholesterol, waist circumference, BMI, triglyceride, fibrinogen and C-reactive protein). A growth curve model was fitted to repeated observations of allostatic load, demographic characteristics, socioeconomic position, comorbidities and health behaviours (smoking, drinking, and physical exercise). To account for attrition, a joint model was applied. RESULTS: The analysis showed that allostatic load increases linearly with age in the U.S. However, there are different levels for males and females. In England allostatic load follows such different paths that their trajectories cross in later life. CONCLUSIONS: Sex-based trajectories of allostatic load showed distinct female advantage and are mostly consistent with female advantage in life expectancy.


Assuntos
Alostase/fisiologia , Comportamentos Relacionados com a Saúde/fisiologia , Caracteres Sexuais , Idoso , Idoso de 80 Anos ou mais , Consumo de Bebidas Alcoólicas/epidemiologia , Consumo de Bebidas Alcoólicas/psicologia , Consumo de Bebidas Alcoólicas/tendências , Biomarcadores/sangue , Pressão Sanguínea/fisiologia , Proteína C-Reativa/metabolismo , Estudos de Coortes , Inglaterra/epidemiologia , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Aposentadoria/psicologia , Aposentadoria/tendências , Fumar/epidemiologia , Fumar/psicologia , Fumar/tendências , Estados Unidos/epidemiologia
13.
Clin Endocrinol (Oxf) ; 86(5): 660-668, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28160328

RESUMO

OBJECTIVES: To assess ethnic differences in male reproductive hormone levels and to determine whether any differences are explained by adiposity, insulin resistance (IR) or comorbidities in older men. DESIGN: Multi-ethnic cross-sectional observational study. PARTICIPANTS: Community dwelling middle-aged and elderly men residing in the UK aged 40-84 years of South Asian (SA; n = 180), White European (WE; n = 328) or African Caribbean (AC; n = 166) origin. OBSERVATIONS: Measured testosterone (T), calculated free T (cFT), sex hormone-binding globulin and LH in SA, WE and AC men along with an assessment of body composition, IR, lifestyle factors and medical conditions. RESULTS: Age-adjusted mean T and cFT levels were lower in SA men when compared to WE and AC men (mean (SEM) T: SA: 14·0 ± 0·4; WE: 17·1 ± 0·3; AC: 17·2 ± 0·5 nmol/l, P < 0·001; cFT: SA: 283 ± 7; WE: 313 ± 5; AC: 314 ± 8 pmol/l, P < 0·006). Compared to WE and AC men, SA men had higher levels of body fat, IR, comorbidities and diabetes. After adjusting for body fat, IR and other confounders, T levels in SA men remained lower than in WE men (P = 0·04) but ethnic differences in cFT became nonsignificant. LH levels were higher in SA than WE men in age-adjusted and fully adjusted models. CONCLUSIONS: T and cFT are lower in SA men than in WE and AC men. Whether ethnic-specific reference ranges for T and cFT might be appropriate in clinical practice requires further investigation. Ethnic differences in cFT, but not T, appear to be, more readily, explained by ethnic differences in adiposity, thus providing insights into potential pathophysiological mechanisms.


Assuntos
Adiposidade/etnologia , Envelhecimento/etnologia , Resistência à Insulina/etnologia , Hormônio Luteinizante/metabolismo , Globulina de Ligação a Hormônio Sexual/metabolismo , Testosterona/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Humanos , Masculino , Pessoa de Meia-Idade , Reino Unido/etnologia
14.
Am J Geriatr Psychiatry ; 25(11): 1187-1195, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28734770

RESUMO

OBJECTIVE: This study aims to investigate the implications of the heterogeneous cohort composition on depression trajectories of older adults in the United States and England. METHODS: Using growth curve models to identify depressive symptom trajectories and data spanning six waves over 10 years (2002-2012) from the U.S. Health Retirement Study and the English Longitudinal Study of Ageing, community-dwelling Americans and Britons aged 50 years and older were studied. Depressive symptoms were measured using the eight-item Center for Epidemiologic Studies Depression Scale. RESULTS: The sample included 11,919 respondents (7,095 women [59.53%]) in the United States and 10,606 respondents (5,802 women [54.7%]) in England aged 50 and older. Older cohorts were shown to have higher depressive symptoms than younger cohorts in the United States and England. The trajectories of depression of older cohorts, particularly those of the prewar cohorts in both countries and the war cohort in England, followed a U-shape. Conversely, the trajectories of depression of the younger cohort, particularly those of the postwar cohorts in both countries and the war cohort in the United States, took an inverted U-shape. CONCLUSION: The trajectories of depression in later life between cohorts took different shapes. This finding may lead to the development of more cost-effective policies for treating depression in later life.


Assuntos
Envelhecimento/psicologia , Depressão/epidemiologia , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Inglaterra/epidemiologia , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Aposentadoria/psicologia , Estados Unidos/epidemiologia
15.
Qual Life Res ; 25(5): 1137-49, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26459379

RESUMO

PURPOSE: Studies on self-rated health outcomes are fraught with problems when individuals' reporting behaviour is systematically biased by demographic, socio-economic, or cultural factors. Analysing the data drawn from the Indonesia Family Life Survey 2007, this paper aims to investigate the extent of differential health reporting behaviour by demographic and socio-economic status among Indonesians aged 40 and older (N = 3735). METHODS: Interpersonal heterogeneity in reporting style is identified by asking respondents to rate a number of vignettes that describe varying levels of health status in targeted health domains (mobility, pain, cognition, sleep, depression, and breathing) using the same ordinal response scale that is applied to the self-report health question. A compound hierarchical ordered probit model is fitted to obtain health differences by demographic and socio-economic status. The obtained regression coefficients are then compared to the standard ordered probit model. RESULTS: We find that Indonesians with more education tend to rate a given health status in each domain more negatively than their less-educated counterparts. Allowing for such differential reporting behaviour results in relatively stronger positive education effects. CONCLUSION: There is a need to correct for differential reporting behaviour using vignettes when analysing self-rated health measures in older adults in Indonesia. Unless such an adjustment is made, the salutary effect of education will be underestimated.


Assuntos
Viés , Disparidades nos Níveis de Saúde , Autorrelato , Classe Social , Adulto , Idoso , Cognição , Depressão , Feminino , Humanos , Indonésia , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Dor , Qualidade de Vida , Inquéritos e Questionários , Adulto Jovem
16.
Int J Health Geogr ; 15: 13, 2016 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-27072128

RESUMO

BACKGROUND: Despite being one of the world's most affected regions, only little is known about the social and spatial distributions of malaria in Indonesian Papua. Existing studies tend to be descriptive in nature; their inferences are prone to confounding and selection biases. At the same time, there remains limited malaria-cartographic activity in the region. Analysing a subset (N = 22,643) of the National Basic Health Research 2007 dataset (N = 987,205), this paper aims to quantify the district-specific risk of malaria in Papua and to understand how socio-demographic/economic factors measured at individual and district levels are associated with individual's probability of contracting the disease. METHODS: We adopt a Bayesian hierarchical logistic regression model that accommodates not only the nesting of individuals within the island's 27 administrative units but also the spatial autocorrelation among these locations. Both individual and contextual characteristics are included as predictors in the model; a normal conditional autoregressive prior and an exchangeable one are assigned to the random effects. Robustness is then assessed through sensitivity analyses using alternative hyperpriors. RESULTS: We find that rural Papuans as well as those who live in poor, densely forested, lowland districts are at a higher risk of infection than their counterparts. We also find age and gender differentials in malaria prevalence, if only to a small degree. Nine districts are estimated to have higher-than-expected malaria risks; the extent of spatial variation on the island remains notable even after accounting for socio-demographic/economic risk factors. CONCLUSIONS: Although we show that malaria is geography-dependent in Indonesian Papua, it is also a disease of poverty. This means that malaria eradication requires not only biological (proximal) interventions but also social (distal) ones.


Assuntos
Mapeamento Geográfico , Malária/economia , Malária/epidemiologia , Pobreza/economia , Pobreza/estatística & dados numéricos , População Rural/estatística & dados numéricos , Adolescente , Adulto , Criança , Pré-Escolar , Estudos Transversais , Feminino , Humanos , Indonésia/epidemiologia , Lactente , Recém-Nascido , Malária/diagnóstico , Masculino , Pessoa de Meia-Idade , Fatores Socioeconômicos , Adulto Jovem
17.
Age Ageing ; 44(4): 610-5, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25904444

RESUMO

BACKGROUND: although recent studies have suggested that inflammation may play an important role in the process of ageing and in the development of disabilities, knowledge about the role of inflammation in physical performance decline among middle-aged and older people in the context of developing countries is limited. OBJECTIVES: to examine the association between C-reactive protein (CRP) and the activities of daily living (ADL) among middle-aged (40-54 years old) and older (55-96 years old) people in Indonesia. DATA: data from a population-based sample, the Indonesia Family Life Survey (IFLS) 2007, were analysed. The data consist of 1,702 respondents of middle age (40-54 years old) and 2,017 older respondents who had completed information on ADL and CRP. METHODS: CRP concentrations in Dried Blood Spot (DBS) specimens were measured, using the validated enzyme-linked immunosorbent assay (ELISA) method. Thirteen items of ADL were used to measure physical performance. A three-level linear model was applied to take advantage of the nested structure of data at the individual level within the household and community levels. RESULTS: high levels of CRP were significantly associated with lower ADL for middle-aged and older people (P < 0.001). The model was adjusted for co-morbid conditions, health risk factors, medications, depressive symptoms and sociodemographic characteristics. CONCLUSION: the significant association between the high level of CRP and lower ADL among older people in Indonesia is in line with earlier studies in the context of developed countries. This study provides an extension in which the significant association was also found in middle-aged people (40-54 years old).


Assuntos
Atividades Cotidianas , Envelhecimento/fisiologia , Biomarcadores/sangue , Inflamação/sangue , Atividade Motora/fisiologia , Vigilância da População/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Proteína C-Reativa/metabolismo , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Indonésia/epidemiologia , Inflamação/epidemiologia , Inflamação/fisiopatologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Adulto Jovem
18.
Aging Ment Health ; 19(7): 576-83, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25642833

RESUMO

OBJECTIVES: In the public mind, later life is being transformed by the emerging possibility of a flourishing third age with sustained quality of life. We draw trajectories of life quality measured using CASP-19 over eight years. We refine these trajectories by jointly modelling attrition, since older people tend to leave longitudinal studies (attrite) not at random. METHODS: Growth curve models are applied to the English Longitudinal Study of Ageing waves 1 to 5. Then joint model is estimated where attrition is considered. Extensive predictors are entered including demographic attributes, social and economic status, health conditions, and behaviours. RESULTS: Strong non-linear age trajectory of life quality is revealed by the growth curve models where the peak is achieved in the late 60s. Then the joint model uncovers the peak somewhat later in time, and also reveals secular improvement in life quality experienced by recent cohorts. Sharp estimates for many predictors of higher levels of life quality are also found. CONCLUSION: For the first time, the trajectories of life quality in the third age are drawn and improvement across cohorts is demonstrated. The contributions are estimated for predictors amenable to intervention such as social capital. This can help in policy discussion on improving the lives of older people in the third age.


Assuntos
Envelhecimento/psicologia , Qualidade de Vida/psicologia , Fatores Etários , Idoso , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Modelos Estatísticos , Inquéritos e Questionários , Reino Unido/epidemiologia
19.
PLOS Digit Health ; 3(4): e0000476, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38564507

RESUMO

There is an urgent need to focus on implementing cost-effective health interventions and policies to reduce the burden of cardiovascular disease in Indonesia. This study aims to evaluate whether a mobile technology-supported primary health care intervention, compared with usual care, would reduce the risk of all-cause mortality among people in rural Indonesia. Data were collected from 11,098 participants in four intervention villages and 10,981 participants in four control villages in Malang district, Indonesia. The baseline data were collected in 2016. All the participants were followed for five years, and the mortality data were recorded. Cox proportional hazard model was used to examine the association between the intervention and the risk of all-cause mortality, adjusted for the covariates, including age, gender, educational attainment, employment and marital status, obesity and the presence of diabetes mellitus. During the five-year follow-up, 275 participants died in intervention villages, compared with 362 in control villages. Participants residing in intervention villages were at 18% (95%CI = 4 to 30) lower risk of all-cause mortality. Higher education attainment and being married are associated with lower risks of all-cause mortality among respondents who lived in the control villages, but not among those living in the intervention villages. A mobile technology-supported primary health care intervention had the potential to improve the five-year survival among people living in villages in an upper-middle income country.

20.
Health Econ ; 22(1): 14-21, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22114035

RESUMO

Although neighbourhood social capital can be beneficial for individual health, supporting evidence in the UK is scant. We aim to find the net effect of neighbourhood social capital and deprivation on individual health beyond sociodemographic composition of neighbourhood. We propose a multilevel path analytic model of health to delineate complex pathways involving neighbourhoods (measured as local super output area) and individuals. Analysis of the most recent data containing independent measures of neighbourhood social capital shows that neighbourhood social capital appears to be associated with benefits in some aspects of individual health in the Welsh setting. The improvement stands beyond individual determinants and neighbourhood deprivation. Social scientists and public health officials have reason to continue focusing on the neighbourhoods as well as the individuals to improve the health of the population.


Assuntos
Nível de Saúde , Áreas de Pobreza , Características de Residência/estatística & dados numéricos , Autoavaliação (Psicologia) , Apoio Social , Adolescente , Adulto , Fatores Etários , Idoso , Criança , Pré-Escolar , Feminino , Comportamentos Relacionados com a Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Fatores Sexuais , Fatores Socioeconômicos , Confiança , País de Gales/epidemiologia , Adulto Jovem
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