Assessment of skin pigmentation-related bias in pulse oximetry readings among adults.

PURPOSE: Recent reports that pulse oximeters may overestimate oxygen saturation in individuals with darker skin pigmentation have prompted concerns from regulatory authorities regarding racial bias. We investigated the performance of TruSignal SpO2 sensors (GE Healthcare, Helsinki, Finland) in adults with varying skin pigmentation. METHODS: A retrospective study was conducted using a set of pooled assessments of SpO2/SaO2 measurements from nine studies to assess bias, accuracy (Arms), and precision of TruSignal sensors in healthy adults under induced hypoxia. Subgroup analyses were performed based on oxygen saturation levels (band 1, ≥ 70 and ≤ 80%; band 2, > 80 and ≤ 90%; band 3, > 90 and ≤ 100%). RESULTS: Of the 10,800 data points from 131 individuals, 8,202 (75.9%) and 2,598 (24.1%) were assigned to the light and dark pigment groups, respectively. Bias was 0.14% overall and less than 1% across oxygenation bands. The difference in bias between dark and light pigment groups was statistically significant at the low oxygenation band with SpO2 ≥ 70 and ≤ 80% (+ 0.58% and + 0.30% respectively; p = 0.0035). Throughout the saturation range, Arms was 1.64% in the light and 1.71% in the dark pigment group, within device specifications and regulatory requirements. Oxygenation was the dominating factor in stepwise ANOVA modeling. The mixed model also showed that bias was strongly affected by the oxygenation range. CONCLUSION: TruSignal sensors demonstrated higher bias at lower oxygen saturation, with less than 0.5% difference between pigment groups. These findings raise new questions, such as ways to improve pulse oximetry measurements during challenging clinical conditions, including low perfusion.

Development of a job-exposure matrix-like exposure assessment method for the US general population based on Occupational Information Network (O*NET) job tasks.

BACKGROUND: Job-exposure matrices (JEMs) are often used for exposure assessment in occupational exposure and epidemiology studies. However, general population JEMs are difficult to find and access for workers in the United States of America. OBJECTIVE: We aimed to use publicly available information to develop a JEM-like exposure assessment method to determine exposure to a wide range of occupational agents in a wide range of occupations for US general population studies. METHODS: We used information from the US Department of Labor's Occupational Information Network database (O*NET) for 19,636 job tasks and 974 civilian occupations. We used automated keyword searches to identify 1,804 job tasks that involved exposure to 50 occupational agents. We had 2 reviewers determine whether each identified job task actually involved exposure to the 50 occupational agents. We had a third reviewer, a certified industrial hygienist, assess any job task and exposure for which the first 2 reviewers disagreed. For each U.S. Census 2010 occupation code, we used this information to derive 3 exposure variables for each occupational agent: ever exposure, number of job tasks of exposure, and frequency of exposure. RESULTS: Our keyword searches identified a median of 10 (interquartile range [IQR]: 43.75) job tasks for each occupational agent, and the maximum was 308. We determined job tasks actually involved exposure to 45 occupational agents, including solvents, air pollution, pesticides, radiation, metals, etc. We derived the 3 exposure variables for these 45 occupational agents for 516 U.S. Census 2010 occupation codes. The median percentage for ever exposure to individual occupational agents was 1.16% (IQR: 1.74%), and the maximum was 11.43%. CONCLUSIONS: Our JEM-like exposure assessment method based on O*NET information can be used to determine exposure to a wide range of occupational agents in a wide range of occupations for the US general population.

Cost savings through continuous vital sign monitoring in the medical-surgical unit.

OBJECTIVE: This study aimed to determine the potential cost-savings for implementing continuous vital sign monitoring in a hospital's medical-surgical units. METHODS: A cost-savings analysis was designed to calculate potential cost-savings for an average-sized U.S. community hospital (153 total beds) over a 1-year time horizon. Analysis parameters were extracted from national databases and previous studies that compared outcomes for patients receiving continuous vital sign monitoring (SpO2, HR, and RR) or standard of care (intermittent vital sign measurements) in medical-surgical units based on a targeted literature review. Clinical parameters and associated costs served as analysis inputs. The analysis outputs were costs and potential cost-savings using a 50% and 100% adoption rate of continuous monitoring technologies across the medical-surgical unit. RESULTS: Potential annual cost-savings for in-hospital medical-surgical stays were estimated at $3,414,709 (2022 USD) and $6,829,418 for a 50% and 100% adoption rate, respectively. The cost-savings for an adoption rate of 100% equated to a ∼14% reduction in the overall annual cost of medical-surgical unit stays for an average-sized hospital. The largest contribution to potential cost-savings came from patients that avoided serious adverse events that require transfer to the intensive care unit; this resulted in annual cost-savings from reduced average length of stay between $1,756,613 and $3,513,226 (50% and 100% adoption rate, respectively). Additional cost-savings can be attained from reductions in in-hospital cardiac arrest-associated hospitalizations and decreased rapid response team activation. CONCLUSIONS: Our findings demonstrate that there is the potential for cost-savings of over $6.8 million dollars per year in an average-sized US community hospital by improving patient outcomes through implementation of continuous monitoring technologies in medical-surgical units. Continuous vital sign monitoring technologies that increase patient mobility and facilitate recovery may further contribute to cost-savings and should be considered for economic analyses. Future research is needed to explore these health-related outcomes.

Life-course inequalities in intrinsic capacity and healthy ageing, China.

Objective: To investigate the contribution of early-life factors on intrinsic capacity of Chinese adults older than 45 years. Methods: We used data on 21 783 participants from waves 1 (2011) and 2 (2013) of the China Health and Retirement Longitudinal Study (CHARLS), who also participated in the 2014 CHARLS Life History Survey to calculate a previously validated measure of intrinsic capacity. We considered 11 early-life factors and investigated their direct association with participants' intrinsic capacity later in life, as well as their indirect association through four current socioeconomic factors. We used multivariable linear regression and the decomposition of the concentration index to investigate the contribution of each determinant to intrinsic capacity inequalities. Findings: Participants with a favourable environment in early life (that is, parental education, childhood health and neighbourhood environment) had a significantly higher intrinsic capacity score in later life. For example, participants with a literate father recorded a 0.040 (95% confidence interval, CI: 0.020 to 0.051) higher intrinsic capacity score than those with an illiterate father. This inequality was greater for cognitive, sensory and psychological capacities than locomotion and vitality. Overall, early-life factors directly explained 13.92% (95% CI: 12.07 to 15.77) of intrinsic capacity inequalities, and a further 28.57% (95% CI: 28.19 to 28.95) of these inequalities through their influence on current socioeconomic inequalities. Conclusion: Unfavourable early-life factors appear to decrease late-life health status in China, particularly cognitive, sensory and psychological capacities, and these effects are exacerbated by cumulative socioeconomic inequalities over a person's life course.

Moving Toward a Global Age-Friendly Ecosystem.

The designation of "age friendly" has clearly engaged the attention of scholars and leading experts in the field of aging. A search of PubMed references citing the term produced 15 results in the 5-year period from 2006 to 2011; that number increased to 572 in the period from 2015 to 2019. The work, notably led by the World Health Organization with the initiation of age-friendly cities and age-friendly communities, has now sparked a movement for the creation of age-friendly health systems and age-friendly public health systems. Now more than ever, in an era of pandemics, it seems wise to create an ecosystem where each of the age-friendly initiatives can create synergies and additional momentum as the population continues to age. Work of a global nature is especially important given the array of international programs and scientific groups focused on improving the lives of older adults along with their care and support system and our interconnectedness as a world community. In this article, we review the historical evolution of age-friendly programs and describe a vision for an age-friendly ecosystem that can encompass the lived environment, social determinants of health, the healthcare system, and our prevention-focused public health system.

Air-Quality Assessment of On-Site Brick-Kiln Worker Housing in Bhaktapur, Nepal: Chemical Speciation of Indoor and Outdoor PM2.5 Pollution.

Brick workers and their families in Nepal generally live in poorly ventilated on-site housing at the brick kiln, and may be at higher risk for non-occupational exposure to fine particulate matter air pollution and subsequent respiratory diseases due to indoor and outdoor sources. This study characterized non-occupational exposure to PM2.5 by comparing overall concentrations and specific chemical components of PM2.5 inside and outside of brick workers' on-site housing. For all samples, the geometric mean PM2.5 concentration was 184.65 µg/m3 (95% confidence interval: 134.70, 253.12 µg/m3). PM2.5 concentrations differed by kiln number (p = 0.009). Kiln number was significantly associated with 16 of 29 (55%) air pollutant, temperature, or relative humidity variables. There was not a significant interaction between kiln number and location of sample for PM2.5 (p = 0.16), but there was for relative humidity (p = 0.02) and temperature (p = 0.01). Results were qualitatively similar when we repeated analyses using indoor samples only. There was no difference in the chemical makeup of indoor and outdoor PM2.5 in this study, suggesting that outdoor PM2.5 air pollution easily infiltrates into on-site brick worker housing. Outdoor and indoor PM2.5 concentrations found in this study far exceed recommended levels. These findings warrant future interventions targeted to this vulnerable population.

Longitudinal associations between lifestyle, socio-economic position and physical functioning in women at different life stages.

Women's physical functioning declines with age and the rate of decline increases with age, but substantial disparities exist in trajectories over time. To inform development of interventions to optimise physical functioning across the adult life span, the aim is to explore which lifestyle and socio-economic position (SEP) factors contribute to disparities in physical functioning across the adult life span in women. Younger (born 1973-1978, n = 14,247), middle-aged (born 1946-1951, n = 13,715) and older (born 1921-1926, n = 12,432) participants from the Australian Longitudinal Study on Women's Health completed six questionnaires between 1996 and 2012 at approximate 3-year intervals. Physical functioning was measured with a 10-item subscale of the Short-Form Health Survey (score 1-100). Relationships between age and physical functioning were modelled using spline regression, stratified by baseline categories of physical activity, alcohol intake, smoking status, level of education, managing on income and index of neighbourhood socio-economic disadvantage for area. Multivariable models excluding one of the six factors were compared with models including all six factors to examine the relative importance of each factor. Women with unhealthy lifestyles (inactive, smokers or risky alcohol intake) and lower SEP had lower levels of physical functioning and more rapid declines across the adult life span. The variables with the greatest relative contribution to the models for physical functioning differed by age cohort: i.e. education and physical activity in younger women, managing on income and physical activity in middle-aged women and physical activity in older women. For optimal physical functioning, socio-economic factors seemed particularly important in younger and middle-aged women, while physical activity seemed important at all ages.

The Sustainable Development Agenda Needs to Include Long-term Care.

The rapid ageing of populations around the world and the associated shift in the burden of disease from infectious to chronic conditions are creating complex challenges for national governments. Addressing the needs of these older populations in a sustainable and equitable way, will be a fundamental pillar of socioeconomic development in the 21st Century. The World Health Organization (WHO) Global strategy and action plan on ageing and health, which was adopted by all the Organization's 194 Member states in 2016, provides a clear framework for global action. One critical priority is to establish sustainable and equitable long-term care systems in every country. WHO defines long-term care as "the activities undertaken by others to ensure that people with, or at risk of, a significant ongoing loss of intrinsic capacity can maintain a level of functional ability consistent with their basic rights, fundamental freedoms and human dignity". These activities include both social care and health care, as well as contributions from other sectors, such as education or transport. And these activities need to be effectively coordinated if they are to efficiently, equitably and sustainably meet the needs of older people. This requires the stewardship of governments to ensure that: care is accessible and affordable; the rights of older people to lives of meaning and dignity are upheld regardless of their physical or mental capacity; services are oriented around the individual's specific needs; caregivers are supported; the workforce (both paid and unpaid) are treated fairly; and older people's intrinsic capacity is maintained for as long as possible. WHO has proposed three inter-related strategies to establish and sustain long-term care systems. System infrastructure needs to be developed and continually improved. The capacity of the workforce needs to be strengthened and families and communities must be supported. And the care and support provided needs to be more person-centred and integrated, underpinned by minimum standards and accreditation for care providers. This paper outlines some of the critical issues confronting governments in countries at all levels of development if this ambitious vision is to be achieved.

A life-course approach to health: synergy with sustainable development goals.

A life-course approach to health encompasses strategies across individuals' lives that optimize their functional ability (taking into account the interdependence of individual, social, environmental, temporal and intergenerational factors), thereby enabling well-being and the realization of rights. The approach is a perfect fit with efforts to achieve universal health coverage and meet the sustainable development goals (SDGs). Properly applied, a life-course approach can increase the effectiveness of the former and help realize the vision of the latter, especially in ensuring health and well-being for all at all ages. Its implementation requires a shared understanding by individuals and societies of how health is shaped by multiple factors throughout life and across generations. Most studies have focused on noncommunicable disease and ageing populations in high-income countries and on epidemiological, theoretical and clinical issues. The aim of this article is to show how the life-course approach to health can be extended to all age groups, health topics and countries by building on a synthesis of existing scientific evidence, experience in different countries and advances in health strategies and programmes. A conceptual framework for the approach is presented along with implications for implementation in the areas of: (i) policy and investment; (ii) health services and systems; (iii) local, multisectoral and multistakeholder action; and (iv) measurement, monitoring and research. The SDGs provide a unique context for applying a holistic, multisectoral approach to achieving transformative outcomes for people, prosperity and the environment. A life-course approach can reinforce these efforts, particularly given its emphasis on rights and equity.

Une approche sanitaire fondée sur le parcours de vie englobe des stratégies tout au long de la vie des individus qui optimisent leur capacité fonctionnelle (en prenant en compte l'interdépendance de facteurs individuels, sociaux, environnementaux, temporels et intergénérationnels), assurant ainsi le bien-être et l'exercice des droits. Cette approche s'inscrit parfaitement dans les efforts déployés pour parvenir à une couverture sanitaire universelle et atteindre les objectifs de développement durable (ODD). Lorsqu'elle est correctement appliquée, une approche fondée sur le parcours de vie peut accroître l'efficacité de la première et aider à concrétiser l'ambition des seconds, en assurant notamment la santé et le bien-être pour tous à tous les âges. Sa mise en œuvre exige une compréhension commune par les individus et les sociétés de la manière dont la santé est façonnée par de multiples facteurs tout au long de la vie et d'une génération à l'autre. La plupart des études réalisées ont porté sur des maladies non transmissibles et le vieillissement des populations dans les pays à revenu élevé, ainsi que sur des aspects épidémiologiques, théoriques et cliniques. L'objectif de cet article est de montrer que l'approche sanitaire fondée sur le parcours de vie peut être élargie à toutes les tranches d'âge, toutes les questions de santé et tous les pays en s'appuyant sur une synthèse des données scientifiques existantes, les expériences de différents pays et l'avancement des stratégies et programmes en matière de santé. Un cadre conceptuel de l'approche est présenté ainsi que les conséquences de sa mise en œuvre sur: (i) la politique et l'investissement; (ii) les services et systèmes de santé; (iii) les actions locales, multisectorielles et multipartites; et (iv) les mesures, la surveillance et la recherche. Les ODD fournissent un contexte unique pour l'application d'une approche globale et multisectorielle en vue d'obtenir des résultats porteurs de transformation pour les individus, la prospérité et l'environnement. Une approche fondée sur le parcours de vie peut renforcer ces efforts, notamment parce qu'elle met l'accent sur les droits et l'équité.

Un enfoque basado en la salud para toda la vida engloba estrategias durante la vida de las personas, que optimizan su capacidad funcional (teniendo en cuenta la interdependencia de los factores individuales, sociales, ambientales, temporales e intergeneracionales), permitiendo así el bienestar y la realización de los derechos. El enfoque encaja perfectamente con los esfuerzos por lograr una cobertura sanitaria universal y cumplir los objetivos de desarrollo sostenible (ODS). Si se aplica correctamente, un enfoque para toda la vida puede aumentar la eficacia del primero y ayudar a alcanzar la visión de este último, especialmente para garantizar la salud y el bienestar en todas las edades. Su aplicación requiere una comprensión compartida entre individuos y sociedades sobre cómo la salud depende de múltiples factores presentes a lo largo de la vida y entre generaciones. La mayoría de los estudios se han centrado en las enfermedades no contagiosas, en el envejecimiento de la población en los países con ingresos altos y en cuestiones epidemiológicas, teóricas y clínicas. El objetivo de este artículo es mostrar cómo el enfoque basado en la salud para toda la vida se puede extender a todos los grupos de edades, temas de salud y países, mediante la creación de una síntesis de las pruebas científicas existentes, la experiencia en diferentes países y los avances en estrategias y programas de salud. Se presenta un marco conceptual del enfoque junto con las implicaciones para la aplicación en los siguientes campos: (i) política e inversión; (ii) servicios y sistemas de salud; (iii) acción local, multisectorial y de varias partes interesadas; y (iv) medición, supervisión e investigación. Los ODS proporcionan un contexto único para aplicar un enfoque holístico y multisectorial a fin de alcanzar unos resultados transformadores para las personas, la prosperidad y el medio ambiente. Un enfoque para toda la vida puede intensificar estos esfuerzos, sobre todo por su énfasis en los derechos y la equidad.

Organizing integrated health-care services to meet older people's needs.

In most countries, a fundamental shift in the focus of clinical care for older people is needed. Instead of trying to manage numerous diseases and symptoms in a disjointed fashion, the emphasis should be on interventions that optimize older people's physical and mental capacities over their life course and that enable them to do the things they value. This, in turn, requires a change in the way services are organized: there should be more integration within the health system and between health and social services. Existing organizational structures do not have to merge; rather, a wide array of service providers must work together in a more coordinated fashion. The evidence suggests that integrated health and social care for older people contributes to better health outcomes at a cost equivalent to usual care, thereby giving a better return on investment than more familiar ways of working. Moreover, older people can participate in, and contribute to, society for longer. Integration at the level of clinical care is especially important: older people should undergo comprehensive assessments with the goal of optimizing functional ability and care plans should be shared among all providers. At the health system level, integrated care requires: (i) supportive policy, plans and regulatory frameworks; (ii) workforce development; (iii) investment in information and communication technologies; and (iv) the use of pooled budgets, bundled payments and contractual incentives. However, action can be taken at all levels of health care from front-line providers through to senior leaders - everyone has a role to play.

Dans la plupart des pays, un changement fondamental de priorité dans l'organisation des soins cliniques destinés aux personnes âgées est nécessaire. Plutôt que d'essayer de gérer la variété des maladies et symptômes de manière individuelle, l'accent devrait être mis sur les interventions qui optimisent les capacités physiques et mentales des personnes âgées sur tout leur parcours de vie et qui leur permettent de continuer de réaliser les activités qui comptent pour elles. Mais cela suppose de modifier le mode d'organisation des prestations, avec une meilleure intégration à l'intérieur du système de santé et entre les services de santé et d'aide sociale. Cela ne signifie pas que les structures existantes doivent fusionner, mais plutôt qu'une grande diversité de prestataires doit travailler ensemble de manière plus coordonnée. Des données factuelles montrent que des prestations de santé et d'aide sociale intégrées entraînent de meilleurs résultats sur la santé des personnes âgées que les prestations de soins habituelles, pour un coût équivalent; d'où l'obtention d'une meilleure rentabilité des investissements comparativement aux modes de travail classiques. Elles permettent aussi aux personnes âgées de s'impliquer socialement et d'apporter leurs contributions à la société pendant plus longtemps. Une telle intégration est particulièrement importante au niveau des soins cliniques: des évaluations exhaustives devraient être réalisées chez les personnes âgées dans une optique d'optimisation de leurs capacités fonctionnelles, et les plans de soins devraient être communs à tous les prestataires. Au niveau du système de santé, l'intégration des prestations nécessite: (i) l'adoption de politiques, programmes et cadres réglementaires favorables; (ii) le développement du personnel de santé; (iii) un investissement dans les technologies de l'information et de la communication; et (iv) la mise en place de budgets communs, de paiements regroupés et de mesures contractuelles incitatives. Toutefois, des actions peuvent être entreprises à tous les niveaux d'organisation des soins de santé, depuis les prestataires de première ligne jusqu'aux hauts responsables ­ tout le monde a un rôle à jouer.

En la mayoría de países se necesita un cambio fundamental en el enfoque de la atención clínica que reciben las personas mayores. En lugar de intentar gestionar numerosas enfermedades y síntomas por separado, debería ponerse énfasis en las intervenciones que optimizan las capacidades físicas y mentales de las personas mayores durante su vida y que les permitan hacer lo que ellos valoran. Esto, a su vez, requiere un cambio en la forma en la que se organizan los servicios: debería haber más integración dentro del sistema sanitario y entre los servicios sanitarios y sociales. Las estructuras organizativas existentes no deben fusionarse, sino que el amplio conjunto de proveedores de servicios debe trabajar conjuntamente de una forma más coordinada. Las pruebas indican que la atención sanitaria y social integrada para las personas mayores contribuye a unos mejores resultados sanitarios a un coste equivalente a la atención habitual. De esta forma, se obtiene una mayor rentabilidad de la inversión que la obtenida con formas de trabajar más familiares. Además, las personas mayores pueden participar y contribuir en la sociedad durante más tiempo. La integración a nivel de la atención clínica es especialmente importante: las personas mayores deberían someterse a asesoramiento integral con el objetivo de optimizar la capacidad funcional, y deberían compartirse los planes de atención entre todos los proveedores. A nivel del sistema sanitario, la atención integrada requiere: (i) política, planes y marcos normativos de apoyo; (ii) desarrollo del personal sanitario; (iii) inversión en tecnologías de la información y comunicación; y (iv) el uso de presupuestos y pagos combinados e incentivos contractuales. No obstante, esto puede realizarse en todos los niveles de la atención sanitaria, desde los proveedores de primera línea hasta el personal directivo; todos juegan un papel.

Mortality from Amyotrophic Lateral Sclerosis and Parkinson's Disease Among Different Occupation Groups - United States, 1985-2011.

Amyotrophic lateral sclerosis (ALS) and Parkinson's disease, both progressive neurodegenerative diseases, affect >1 million Americans (1,2). Consistently reported risk factors for ALS include increasing age, male sex, and cigarette smoking (1); risk factors for Parkinson's disease include increasing age, male sex, and pesticide exposure, whereas cigarette smoking and caffeine consumption are inversely associated (2). Relative to cancer or respiratory diseases, the role of occupation in neurologic diseases is much less studied and less well understood (3). CDC evaluated associations between usual occupation and ALS and Parkinson's disease mortality using data from CDC's National Institute for Occupational Safety and Health (NIOSH) National Occupational Mortality Surveillance (NOMS), a population-based surveillance system that includes approximately 12.1 million deaths from 30 U.S. states.* Associations were estimated using proportionate mortality ratios (PMRs), standardizing indirectly by age, sex, race, and calendar year to the standard population of all NOMS deaths with occupation information. Occupations associated with higher socioeconomic status (SES) had elevated ALS and Parkinson's disease mortality. The shifts in the U.S. workforce toward older ages and higher SES occupations† highlight the importance of understanding this finding, which will require studies with designs that provide evidence for causality, detailed exposure assessment, and adjustment for additional potential confounders.

Contextual Correlates of Physical Activity among Older Adults: A Neighborhood Environment-Wide Association Study (NE-WAS).

Background: Few older adults achieve recommended physical activity levels. We conducted a "neighborhood environment-wide association study (NE-WAS)" of neighborhood influences on physical activity among older adults, analogous, in a genetic context, to a genome-wide association study.Methods: Physical Activity Scale for the Elderly (PASE) and sociodemographic data were collected via telephone survey of 3,497 residents of New York City aged 65 to 75 years. Using Geographic Information Systems, we created 337 variables describing each participant's residential neighborhood's built, social, and economic context. We used survey-weighted regression models adjusting for individual-level covariates to test for associations between each neighborhood variable and (i) total PASE score, (ii) gardening activity, (iii) walking, and (iv) housework (as a negative control). We also applied two "Big Data" analytic techniques, LASSO regression, and Random Forests, to algorithmically select neighborhood variables predictive of these four physical activity measures.Results: Of all 337 measures, proportion of residents living in extreme poverty was most strongly associated with total physical activity [-0.85; (95% confidence interval, -1.14 to -0.56) PASE units per 1% increase in proportion of residents living with household incomes less than half the federal poverty line]. Only neighborhood socioeconomic status and disorder measures were associated with total activity and gardening, whereas a broader range of measures was associated with walking. As expected, no neighborhood meaZsures were associated with housework after accounting for multiple comparisons.Conclusions: This systematic approach revealed patterns in the domains of neighborhood measures associated with physical activity.Impact: The NE-WAS approach appears to be a promising exploratory technique. Cancer Epidemiol Biomarkers Prev; 26(4); 495-504. ©2017 AACRSee all the articles in this CEBP Focus section, "Geospatial Approaches to Cancer Control and Population Sciences."

Landscape of Research on Older Adults' Health in the Arab Region: Is It Demography-Driven or Development-Dependent?

OBJECTIVES: To describe the quantity, methods, themes, and collaboration profiles of research on older adults' health in the Arab world, and map research productivity against demographic, economic, and development indicators. METHODS: A scoping review of research on older adults' health drawing from 7 databases and covering the period 1994-2013. RESULTS: Aging research output has increased 6-fold over the study period, with middle-income countries showing the sharpest rise. The majority of the reviewed publications are descriptive in nature, oriented toward examining the extent of disease or factors associated with various morbidity and mortality outcomes (88.5%). Despite the increasing regional instability, there is a dearth of studies on "seniors in emergencies." Collaboration with international coauthors (16.0%) has been more frequent than with regional coauthors (4.2%). Correlation analysis suggests that research production has been more strongly influenced by literacy rates than by population aging indicators, Gross Domestic Product, or government investment in research and development. DISCUSSION: This study lays the basis for a "roadmap" for research on older adults' health in the Arab region. It calls for cooperation among various stakeholders to produce a targeted and well-informed research agenda that is more responsive to emerging and context-specific needs of older adults in the region.

Beyond METs: types of physical activity and depression among older adults.

BACKGROUND/OBJECTIVES: physical activity may be beneficial in reducing depression incidence among the elderly. A key unanswered question is whether certain types of physical activity are particularly associated with decreased depression incidence. We examined the relationship between quantity and type of physical activity and subsequent depression using longitudinal data from elderly adults in New York City (NYC). METHODS: we followed 3,497 adults aged 65-75 living in NYC for three years. Total physical activity was measured using the Physical Activity Scale for the Elderly (PASE) and type of physical activity was measured using a latent class analysis of PASE item responses. We used generalised estimating equations to measure the relationship between quantity and latent class of physical activity at waves 1-2 and depression at waves 2-3, controlling for wave-1 depression. RESULTS: individuals in the second highest quartile (50-75%) (odds ratio (OR) = 0.45; 95% confidence interval (CI) = 0.23, 0.88) and highest quartile of activity (OR = 0.31; 95% CI = 0.16, 0.63) had lower odds of depression. Among all subjects, athletic types (OR = 0.25; 95% CI = 0.12, 0.51) and walker types (OR = 0.58; 95% CI = 0.34, 0.99) had lower odds of depression. Among non-disabled participants, walkers (OR = 0.36; 95% CI = 0.18, 0.73), athletic types (OR = 0.14; 95% CI = 0.06, 0.32), domestic/gardening types (OR = 0.29; 95% CI = 0.12, 0.73) and domestic/gardening athletic types (OR = 0.13; 95% CI = 0.02, 0.75) had lower odds of depression. CONCLUSION: respondents who practised the highest levels of physical activity and who performed athletic activities were at lower risk for depression. Interventions aimed at promoting athletic physical activity among older adults may generate benefits for mental health.

Identifying common impairments in frail and dependent older people: validation of the COPE assessment for non-specialised health workers in low resource primary health care settings.

BACKGROUND: Frail and dependent older people in resource-poor settings are poorly served by health systems that lack outreach capacity. The COPE (Caring for Older PEople) multidimensional assessment tool is designed to help community health workers (CHWs) identify clinically significant impairments and deliver evidence-based interventions METHODS: Older people (n = 150) identified by CHWs as frail or dependent, were assessed at home by the CHW using the structured COPE assessment tool, generating information on impairments in nutrition, mobility, vision, hearing, continence, cognition, mood and behaviour. The older people were reassessed by local physicians who reached a clinical judgment regarding the presence or absence of the same impairments based upon clinical examination guided by the EASY-Care assessment tool. RESULTS: The COPE tool was considered easy to administer, and gave CHWs a sense of empowerment to understand and act upon the needs of older people. Agreement between COPE assessment by CHW and clinician assessors was modest (ranged from 45.8 to 91.3 %) for most impairments. However, the prevalence of impairments was generally higher according to clinicians, particularly for visual impairment (98.7 vs 45.8 %), cognitive impairment (78.4 vs. 38.2 %) and depression (82.0 vs. 59.9 %). Most cases identified by WHO-COPE were clinician confirmed (positive predictive values - 72.2 to 98.5 %), and levels of disability and needs for care among those identified by COPE were higher than those additionally identified by the clinician alone. CONCLUSIONS: The COPE is a feasible tool for the identification of specific impairments in frail dependent older people in the community. Those identified are likely to be confirmed as having clinically relevant problems by clinicians working in the same service, and the COPE may be particularly effective at targeting attention upon those with the most substantial unmet needs.

Frailty and the prediction of dependence and mortality in low- and middle-income countries: a 10/66 population-based cohort study.

BACKGROUND: In countries with high incomes, frailty indicators predict adverse outcomes in older people, despite a lack of consensus on definition or measurement. We tested the predictive validity of physical and multidimensional frailty phenotypes in settings in Latin America, India, and China. METHODS: Population-based cohort studies were conducted in catchment area sites in Cuba, Dominican Republic, Venezuela, Mexico, Peru, India, and China. Seven frailty indicators, namely gait speed, self-reported exhaustion, weight loss, low energy expenditure, undernutrition, cognitive, and sensory impairment were assessed to estimate frailty phenotypes. Mortality and onset of dependence were ascertained after a median of 3.9 years. RESULTS: Overall, 13,924 older people were assessed at baseline, with 47,438 person-years follow-up for mortality and 30,689 for dependence. Both frailty phenotypes predicted the onset of dependence and mortality, even adjusting for chronic diseases and disability, with little heterogeneity of effect among sites. However, population attributable fractions (PAF) summarising etiologic force were highest for the aggregate effect of the individual indicators, as opposed to either the number of indicators or the dichotomised frailty phenotypes. The aggregate of all seven indicators provided the best overall prediction (weighted mean PAF 41.8 % for dependence and 38.3 % for mortality). While weight loss, underactivity, slow walking speed, and cognitive impairment predicted both outcomes, whereas undernutrition predicted only mortality and sensory impairment only dependence. Exhaustion predicted neither outcome. CONCLUSIONS: Simply assessed frailty indicators identify older people at risk of dependence and mortality, beyond information provided by chronic disease diagnoses and disability. Frailty is likely to be multidimensional. A better understanding of the construct and pathways to adverse outcomes could inform multidimensional assessment and intervention to prevent or manage dependence in frail older people, with potential to add life to years, and years to life.

Informing evidence-based policies for ageing and health in Ghana.

PROBLEM: Ghana's population is ageing. In 2011, the Government of Ghana requested technical support from the World Health Organization (WHO) to help revise national policies on ageing and health. APPROACH: We applied WHO's knowledge translation framework on ageing and health to assist evidence based policy-making in Ghana. First, we defined priority problems and health system responses by performing a country assessment of epidemiologic data, policy review, site visits and interviews of key informants. Second, we gathered evidence on effective health systems interventions in low- middle- and high-income countries. Third, key stakeholders were engaged in a policy dialogue. Fourth, policy briefs were developed and presented to the Ghana Health Services. LOCAL SETTING: Ghana has a well-structured health system that can adapt to meet the health care needs of older people. RELEVANT CHANGES: Six problems were selected as priorities, however after the policy dialogue, only five were agreed as priorities by the stakeholders. The key stakeholders drafted evidence-based policy recommendations that were used to develop policy briefs. The briefs were presented to the Ghana Health Service in 2014. LESSONS LEARNT: The framework can be used to build local capacity on evidence-informed policy-making. However, knowledge translation tools need further development to be used in low-income countries and in the field of ageing. The terms and language of the tools need to be adapted to local contexts. Evidence for health system interventions on ageing populations is very limited, particularly for low- and middle-income settings.