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As the world ages : rethinking a demographic crisis
People are living longer, not only in wealthy countries but in developing nations. Western experts have long conceived of aging as a universal predicament--one that supposedly provokes the same welfare concerns in every context. In the twenty-first century, we must embrace a new approach that prioritizes local agendas and values. In this history of how gerontologists, doctors, social scientists, and activists came to define the issue of global aging, Sivaramakrishnan shows that the United Nations, private NGOs, and transnational philanthropic foundations embraced programs that reflected prevailing Western ideas about modernization. The dominant paradigm often assumed that, because large-scale growth of an aging population happened first in the West, developing societies will experience the issues of aging in the same ways and on the same terms as their Western counterparts. Focusing on South Asia and Africa, As the World Ages shows how regional voices have begun to question this one-size-fits-all model and have argued instead for an approach that responds to local needs and concerns.-- Provided by publisher
Book
Nutrition and Lifespan in Developing Countries
This chapter contains sections titled:
Demographic transition
Epidemiologic Transition
Globalization and Growing Epidemic of Chronic Diseases in Developing Countries
Nutrition Transition
Health Policy
Selected References
Book Chapter
Improving health service delivery in developing countries : from evidence to action
Reliable information on how health service strategies affect the poor is in short supply. In an attempt to redress the imbalance, 'Improving Health Service Delivery in Developing Countries' presents evidence on strategies for strengthening health service delivery, based on systematic reviews of the literature, quantitative and qualitative analyses of existing data, and seven country case studies. The authors also explore how changes in coverage of different health services affect each other on the national level. Finally, the authors explain why setting international targets for health services has been not been successful and offer an alternative approach based on a specific country's experience. The book's findings are clear and hopeful: There are many ways to improve health services. Measuring change and using information to guide decisions and inform stakeholders are critically important for successful implementation. Asking difficult questions, using information intelligently, and involving key stakeholders and institutions are central to the \"learning and doing\" practices that underlie successful health service delivery.
eBook
Global incidence of prostate cancer in developing and developed countries with changing age structures
To investigate the global incidence of prostate cancer with special attention to the changing age structures. Data regarding the cancer incidence and population statistics were retrieved from the International Agency for Research on Cancer in World Health Organization. Eight developing and developed jurisdictions in Asia and the Western countries were selected for global comparison. Time series were constructed based on the cancer incidence rates from 1988 to 2007. The incidence rate of the population aged ≥ 65 was adjusted by the increasing proportion of elderly population, and was defined as the \"aging-adjusted incidence rate\". Cancer incidence and population were then projected to 2030. The aging-adjusted incidence rates of prostate cancer in Asia (Hong Kong, Japan and China) and the developing Western countries (Costa Rica and Croatia) had increased progressively with time. In the developed Western countries (the United States, the United Kingdom and Sweden), we observed initial increases in the aging-adjusted incidence rates of prostate cancer, which then gradually plateaued and even decreased with time. Projections showed that the aging-adjusted incidence rates of prostate cancer in Asia and the developing Western countries were expected to increase in much larger extents than the developed Western countries.
Journal Article
Prevalence of frailty and prefrailty among community-dwelling older adults in low-income and middle-income countries: a systematic review and meta-analysis
ObjectiveTo systematically review the research conducted on prevalence of frailty and prefrailty among community-dwelling older adults in low-income and middle-income countries (LMICs) and to estimate the pooled prevalence of frailty and prefrailty in community-dwelling older adults in LMICs.DesignSystematic review and meta-analysis. PROSPERO registration number is CRD42016036083.Data sourcesMEDLINE, EMBASE, AMED, Web of Science, CINAHL and WHO Global Health Library were searched from their inception to 12 September 2017.SettingLow-income and middle-income countries.ParticipantsCommunity-dwelling older adults aged ≥60 years.ResultsWe screened 7057 citations and 56 studies were included. Forty-seven and 42 studies were included in the frailty and prefrailty meta-analysis, respectively. The majority of studies were from upper middle-income countries. One study was available from low-income countries. The prevalence of frailty varied from 3.9% (China) to 51.4% (Cuba) and prevalence of prefrailty ranged from 13.4% (Tanzania) to 71.6% (Brazil). The pooled prevalence of frailty was 17.4% (95% CI 14.4% to 20.7%, I2=99.2%) and prefrailty was 49.3% (95% CI 46.4% to 52.2%, I2=97.5%). The wide variation in prevalence rates across studies was largely explained by differences in frailty assessment method and the geographic region. These findings are for the studies with a minimum recruitment age 60, 65 and 70 years.ConclusionThe prevalence of frailty and prefrailty appears higher in community-dwelling older adults in upper middle-income countries compared with high-income countries, which has important implications for healthcare planning. There is limited evidence on frailty prevalence in lower middle-income and low-income countries.PROSPERO registration number CRD42016036083.
Journal Article
Senolytic therapies for healthy longevity
Clearing senescent cells with targeted drugs could combat age-associated disease The estimated “natural” life span of humans is ∼30 years, but improvements in working conditions, housing, sanitation, and medicine have extended this to ∼80 years in most developed countries. However, much of the population now experiences aging-associated tissue deterioration. Healthy aging is limited by a lack of natural selection, which favors genetic programs that confer fitness early in life to maximize reproductive output. There is no selection for whether these alterations have detrimental effects later in life. One such program is cellular senescence, whereby cells become unable to divide. Cellular senescence enhances reproductive success by blocking cancer cell proliferation, but it decreases the health of the old by littering tissues with dysfunctional senescent cells (SNCs). In mice, the selective elimination of SNCs (senolysis) extends median life span and prevents or attenuates age-associated diseases ( 1 , 2 ). This has inspired the development of targeted senolytic drugs to eliminate the SNCs that drive age-associated disease in humans.
Journal Article
The 2022 symposium on dementia and brain aging in low‐ and middle‐income countries: Highlights on research, diagnosis, care, and impact
Two of every three persons living with dementia reside in low‐ and middle‐income countries (LMICs). The projected increase in global dementia rates is expected to affect LMICs disproportionately. However, the majority of global dementia care costs occur in high‐income countries (HICs), with dementia research predominantly focusing on HICs. This imbalance necessitates LMIC‐focused research to ensure that characterization of dementia accurately reflects the involvement and specificities of diverse populations. Development of effective preventive, diagnostic, and therapeutic approaches for dementia in LMICs requires targeted, personalized, and harmonized efforts. Our article represents timely discussions at the 2022 Symposium on Dementia and Brain Aging in LMICs that identified the foremost opportunities to advance dementia research, differential diagnosis, use of neuropsychometric tools, awareness, and treatment options. We highlight key topics discussed at the meeting and provide future recommendations to foster a more equitable landscape for dementia prevention, diagnosis, care, policy, and management in LMICs. Highlights Two‐thirds of persons with dementia live in LMICs, yet research and costs are skewed toward HICs. LMICs expect dementia prevalence to more than double, accompanied by socioeconomic disparities. The 2022 Symposium on Dementia in LMICs addressed advances in research, diagnosis, prevention, and policy. The Nairobi Declaration urges global action to enhance dementia outcomes in LMICs.
Journal Article
Redesigning Primary Care to Tackle the Global Epidemic of Noncommunicable Disease
Noncommunicable diseases (NCDs) have become the major contributors to death and disability worldwide. Nearly 80% of the deaths in 2010 occurred in low- and middle-income countries, which have experienced rapid population aging, urbanization, rise in smoking, and changes in diet and activity. Yet the health systems of low- and middle-income countries, historically oriented to infectious disease and often severely underfunded, are poorly prepared for the challenge of caring for people with cardiovascular disease, diabetes, cancer, and chronic respiratory disease. We have discussed how primary care can be redesigned to tackle the challenge of NCDs in resource-constrained countries. We suggest that four changes will be required: integration of services, innovative service delivery, a focus on patients and communities, and adoption of new technologies for communication.
Journal Article
Risk Factors and Disability Associated with Low Back Pain in Older Adults in Low- and Middle-Income Countries. Results from the WHO Study on Global AGEing and Adult Health (SAGE)
Back pain is a common disabling chronic condition that burdens individuals, families and societies. Epidemiological evidence, mainly from high-income countries, shows positive association between back pain prevalence and older age. There is an urgent need for accurate epidemiological data on back pain in adult populations in low- and middle-income countries (LMICs) where populations are ageing rapidly. The objectives of this study are to: measure the prevalence of back pain; identify risk factors and determinants associated with back pain, and describe association between back pain and disability in adults aged 50 years and older, in six LMICs from different regions of the world. The findings provide insights into country-level differences in self-reported back pain and disability in a group of socially, culturally, economically and geographically diverse LMICs.
Standardized national survey data collected from adults (50 years and older) participating in the World Health Organization (WHO) Study on global AGEing and adult health (SAGE) were analysed. The weighted sample (n = 30, 146) comprised respondents in China, Ghana, India, Mexico, South Africa and the Russian Federation. Multivariable regressions describe factors associated with back pain prevalence and intensity, and back pain as a determinant of disability.
Prevalence was highest in the Russian Federation (56%) and lowest in China (22%). In the pooled multi-country analyses, female sex, lower education, lower wealth and multiple chronic morbidities were significant in association with past-month back pain (p<0.01). About 8% of respondents reported that they experienced intense back pain in the previous month.
Evidence on back pain and its impact on disability is needed in developing countries so that governments can invest in cost-effective education and rehabilitation to reduce the growing social and economic burden imposed by this disabling condition.
Journal Article
Cancer registration in China and its role in cancer prevention and control
Cancer has become a leading cause of death in China, with an increasing burden of cancer incidence and mortality observed over the past half century. Population-based cancer registries have been operating in China for about 60 years, and, in 2018, their role has expanded to include the formulation and evaluation of national cancer control programmes and the care of patients with cancer. The purpose of this Review is to provide an overview of the key milestones in the development of cancer registration in China, the current status of registry coverage and quality, and a description of the changing cancer profile in China from 1973 to 2015. This Review is a comprehensive and updated review on the development of population-based cancer registries in China over a 60-year time span. We highlight some aspects of cancer control plans that illustrate how cancer registration data have become central to the identification of health priorities for China and provide a means to track progress in cancer control for the country.
Journal Article