Non-pharmacological interventions for the prevention of sexually transmitted infections (STIs) in older adults: A systematic review

BACKGROUND

STIs in older adults (adults aged 50 years and older) are on the rise due to variable levels of sex literacy and misperceived susceptibility to infections, among other factors. We systematically reviewed evidence on the effect of non-pharmacological interventions for the primary prevention of sexually transmitted infections (STIs) and high-risk sexual behaviour in older adults.

METHODS

We searched EMBASE, MEDLINE, PSYCINFO, Global Health and the Cochrane Library from inception until March 9th, 2022. We included RCTs, cluster-randomised trials, quasi-RCTs, interrupted time series (ITS) and controlled and uncontrolled before-and-after studies of non-pharmacological primary prevention interventions (e.g. educational and behaviour change interventions) in older adults, reporting either qualitative or quantitative findings. At least two review authors independently assessed the eligibility of articles and extracted data on main characteristics, risk of bias and study findings. Narrative synthesis was performed.

RESULTS

Ten studies (two RCTs, seven quasi-experiment studies and one qualitative study) were found to be eligible for this review. These interventions were mainly information, education and communication activities (IECs) aimed at fostering participants' knowledge on STIs and safer sex, mostly focused on HIV. Most studies used self-reported outcomes measuring knowledge and behaviour change related to HIV, STIs and safer sex. Studies generally reported an increase in STI/HIV knowledge. However, risk of bias was high or critical across all studies.

CONCLUSIONS

Literature on non-pharmacological interventions for older adults is sparse, particularly outside the US and for STIs other than HIV. There is evidence that IECs may improve short-term knowledge about STIs however, it is not clear this translates into long-term improvement or behaviour change as all studies included in this review had follow-up times of 3 months or less. More robust and higher-quality studies are needed in order to confirm the effectiveness of non-pharmacological primary prevention interventions for reducing STIs in the older adult population.

Implementing care for healthy ageing

The WHO concept of Healthy Ageing (ie, the process of developing and maintaining the functional ability that enables well-being in older age) has initiated a global discussion about the need for shifting paradigms to reorient health and social services towards person-centred and coordinated models of care. In particular, the integration of health and social care services is critical to provide the basis for comprehensive information sharing and service delivery to support the evolution of the older person over time. The capability to monitor and respond to an older person’s changing health and social care needs will enable prompt and personalised health and social care plans to be implemented.

The implementation of an integrated care approach involves all the settings where persons age, but also requires a concerted action among micro (clinical), meso (service delivery) and macro (system) level. The community is of particular relevance given the primary objective of "ageing in place". However, from the perspective of the continuum of care and services acting synergistically, all health and social care settings (including long-term care facilities and hospitals) need to evolve and embrace an integrated way of operating to support functional ability in older people, while maximising resource and information sharing efficiencies.

In this paper, we explain that government actions to promote well-being in older age should be built on a seamless continuum of care starting from the assessment of the older person’s intrinsic capacity and functional ability with the final aim of providing care aligned with the individual’s needs and priorities.

What long-term care interventions have been published between 2010 and 2020? Results of a WHO scoping review identifying long-term care interventions for older people around the world

OBJECTIVE

The global population is rapidly ageing. To tackle the increasing prevalence of older adults' chronic conditions, loss of intrinsic capacity and functional ability, long-term care interventions are required. The study aim was to identify long-term care interventions reported in scientific literature from 2010 to 2020 and categorise them in relation to WHO's public health framework of healthy ageing.

DESIGN

Scoping review conducted on PubMed, CINHAL, Cochrane and Google Advanced targeting studies reporting on long-term care interventions for older and frail adults. An internal validated Excel matrix was used for charting.Setting nursing homes, assisted care homes, long-term care facilities, home, residential houses for the elderly and at the community.

INCLUSION CRITERIA

Studies published in peer-reviewed journals between 1 January 2010 to 1 February 2020 on implemented interventions with outcome measures provided in the settings mentioned above for subjects older than 60 years old in English, Spanish, German, Portuguese or French.

RESULTS

305 studies were included. Fifty clustered interventions were identified and organised into four WHO Healthy Ageing domains and 20 subdomains. All interventions delved from high-income settings; no interventions from low-resource settings were identified. The most frequently reported interventions were multimodal exercise (n=68 reports, person-centred assessment and care plan development (n=22), case management for continuum care (n=16), multicomponent interventions (n=15), psychoeducational interventions for caregivers (n=13) and interventions mitigating cognitive decline (n=13).

CONCLUSION

The identified interventions are diverse overarching multiple settings and areas seeking to prevent, treat and improve loss of functional ability and intrinsic capacity. Interventions from low-resource settings were not identified.

A Recommended Package of Long-Term Care Services to Promote Healthy Ageing Based on a WHO Global Expert Consensus Study

OBJECTIVES

To reach consensus on a minimum list of long-term care (LTC) interventions to be included in a service package delivered through universal health coverage (UHC).

DESIGN

A multistep expert consensus process.

SETTING AND PARTICIPANTS

Multinational and multidisciplinary experts in LTC and ageing.

METHODS

The consensus process was composed of 3 stages: (1) a preconsultation round that built on an initial list of LTC interventions generated by a previous scoping review; (2) 2-round surveys to reach consensus on important, acceptable, and feasible interventions for LTC; (3) a panel meeting to finalize the consensus.

RESULTS

The preconsultation round generated an initial list of 117 interventions. In round 1, 194 experts were contacted and 92 (47%) completed the survey. In round 2, the same experts contacted for round 1 were invited, and 115 (59%) completed the survey. Of the 115 respondents in round 2, 80 participated in round 1. Experts representing various disciplines (eg, geriatricians, family doctors, nurses, mental health, and rehabilitation professionals) participated in round 2, representing 42 countries. In round 1, 81 interventions achieved the predetermined threshold for importance, and in round 2, 41 interventions achieved the predetermined threshold for acceptability and feasibility. Nine conflicting interventions between rounds 1 and 2 were discussed in the panel meeting. The recommended list composed of 50 interventions were from 6 domains: unpaid and paid carers' support and training, person-centered assessment and care planning, prevention and management of intrinsic capacity decline, optimization of functional ability, interventions needing focused attention, and palliative care.

CONCLUSIONS AND IMPLICATIONS

An international discussion and consensus process generated a minimum list of LTC interventions to be included in a service package for UHC. This package will enable actions toward a more robust framework for integrated services for older people in need of LTC across the continuum of care.

Entropy Fit Indices: New Fit Measures for Assessing the Structure and Dimensionality of Multiple Latent Variables

The accurate identification of the content and number of latent factors underlying multivariate data is an important endeavor in many areas of Psychology and related fields. Recently, a new dimensionality assessment technique based on network psychometrics was proposed (Exploratory Graph Analysis, EGA), but a measure to check the fit of the dimensionality structure to the data estimated via EGA is still lacking. Although traditional factor-analytic fit measures are widespread, recent research has identified limitations for their effectiveness in categorical variables. Here, we propose three new fit measures (termed entropy fit indices) that combines information theory, quantum information theory and structural analysis: Entropy Fit Index (EFI), EFI with Von Neumman Entropy (EFI.vn) and Total EFI.vn (TEFI.vn). The first can be estimated in complete datasets using Shannon entropy, while EFI.vn and TEFI.vn can be estimated in correlation matrices using quantum information metrics. We show, through several simulations, that TEFI.vn, EFI.vn and EFI are as accurate or more accurate than traditional fit measures when identifying the number of simulated latent factors. However, in conditions where more factors are extracted than the number of factors simulated, only TEFI.vn presents a very high accuracy. In addition, we provide an applied example that demonstrates how the new fit measures can be used with a real-world dataset, using exploratory graph analysis.

Measuring functional ability in healthy ageing: a nationwide cross-sectional survey in the Philippine older population

OBJECTIVES

To analyse the empirical support of the functional ability concept in the healthy ageing framework developed by the WHO in a sample of the Philippine older population. According to this framework, environmental factors may enhance or hinder functional ability, which is the person's ability to do what they value, broadly represented by subjective well-being. Moreover, this network of relationships may be moderated by personal characteristics such as gender.

DESIGN

Cross-sectional observational study.

SETTING

Philippines, general population.

PARTICIPANTS

Respondents of the 2016 National Disability Prevalence Survey/Model Functioning Survey aged 50+ (N=2825).

PRIMARY AND SECONDARY OUTCOME MEASURES

Latent (unobserved) measures of functional ability, environmental factors (physical environmental factors and social network and support) and subjective well-being (positive affect, negative affect and evaluative well-being) were obtained from different items from the survey questionnaire using a SEM framework.

RESULTS

We found that the relationship between environmental factors and the three components of subjective well-being considered in this study was partially explained by differences in functional ability. The portion of those effects accounted for by functional ability was comparatively larger for the physical than for the social environmental factors. We found no evidences of gender differences in this network of relationships.

CONCLUSIONS

These findings suggest the relevance of functional ability at explaining the relationship between environmental factors and subjective well-being in older adults. Future studies may replicate these findings longitudinally and including other relevant measures as the person's objective level of intrinsic capacity.

Socioeconomic differences in handgrip strength and its association with measures of intrinsic capacity among older adults in six middle-income countries

Handgrip strength, a measure of muscular strength is a powerful predictor of declines in intrinsic capacity, functional abilities, the onset of morbidity and mortality among older adults. This study documents socioeconomic (SES) differences in handgrip strength among older adults aged 50 years and over in six middle-income countries and investigates the association of handgrip strength with measures of intrinsic capacity-a composite of all the physical and mental capacities of an individual. Secondary data analysis of cross-sectional population-based data from six countries from the WHO's Study on global AGEing and adult health (SAGE) Wave 1 were conducted. Three-level linear hierarchical models examine the association of demographic, socioeconomic status and multimorbidity variables with handgrip strength. Regression-based Relative Index of Inequality (RII) examines socioeconomic inequalities in handgrip strength; and multilevel linear and logistic hierarchical regression models document the association between handgrip strength and five domains of intrinsic capacity: locomotion, psychological, cognitive capacity, vitality and sensory. Wealth quintiles are positively associated with handgrip strength among men across all countries except South Africa while the differences by education were notable for China and India. Work and nutritional status are positively associated with handgrip strength. Our findings provide new evidence of robust association between handgrip strength and other measures of intrinsic capacity and confirms that handgrip strength is a single most important measure of capacity among older persons.

Health, social care and technological interventions to improve functional ability of older adults living at home: An evidence and gap map

Background

By 2030, the global population of people older than 60 years is expected to be higher than the number of children under 10 years, resulting in major health and social care system implications worldwide. Without a supportive environment, whether social or built, diminished functional ability may arise in older people. Functional ability comprises an individual's intrinsic capacity and people's interaction with their environment enabling them to be and do what they value.

Objectives

This evidence and gap map aims to identify primary studies and systematic reviews of health and social support services as well as assistive devices designed to support functional ability among older adults living at home or in other places of residence.

Search Methods

We systematically searched from inception to August 2018 in: MEDLINE, EMBASE, Cochrane Database of Systematic Reviews, CENTRAL, CINAHL, PsycINFO, AgeLine, Campbell Library, ASSIA, Social Science Citation Index and Social Policy & Practice. We conducted a focused search for grey literature and protocols of studies (e.g., ProQuest Theses and Dissertation Global, conference abstract databases, Help Age, PROSPERO, Cochrane and Campbell libraries and ClinicalTrials.gov).

Selection Criteria

Screening and data extraction were performed independently in duplicate according to our intervention and outcome framework. We included completed and on-going systematic reviews and randomized controlled trials of effectiveness on health and social support services provided at home, assistive products and technology for personal indoor and outdoor mobility and transportation as well as design, construction and building products and technology of buildings for private use such as wheelchairs, and ramps.

Data Collection and Analysis

We coded interventions and outcomes, and the number of studies that assessed health inequities across equity factors. We mapped outcomes based on the International Classification of Function, Disability and Health (ICF) adapted categories: intrinsic capacities (body function and structures) and functional abilities (activities). We assessed methodological quality of systematic reviews using the AMSTAR II checklist.

Main Results

After de-duplication, 10,783 records were screened. The map includes 548 studies (120 systematic reviews and 428 randomized controlled trials). Interventions and outcomes were classified using domains from the International Classification of Function, Disability and Health (ICF) framework. Most systematic reviews (n = 71, 59%) were rated low or critically low for methodological quality.The most common interventions were home-based rehabilitation for older adults (n = 276) and home-based health services for disease prevention (n = 233), mostly delivered by visiting healthcare professionals (n = 474). There was a relative paucity of studies on personal mobility, building adaptations, family support, personal support and befriending or friendly visits. The most measured intrinsic capacity domains were mental function (n = 269) and neuromusculoskeletal function (n = 164). The most measured outcomes for functional ability were basic needs (n = 277) and mobility (n = 160). There were few studies which evaluated outcome domains of social participation, financial security, ability to maintain relationships and communication.There was a lack of studies in low- and middle-income countries (LMICs) and a gap in the assessment of health equity issues.

Authors' Conclusions

There is substantial evidence for interventions to promote functional ability in older adults at home including mostly home-based rehabilitation for older adults and home-based health services for disease prevention. Remotely delivered home-based services are of greater importance to policy-makers and practitioners in the context of the COVID-19 pandemic. This map of studies published prior to the pandemic provides an initial resource to identify relevant home-based services which may be of interest for policy-makers and practitioners, such as home-based rehabilitation and social support, although these interventions would likely require further adaptation for online delivery during the COVID-19 pandemic. There is a need to strengthen assessment of social support and mobility interventions and outcomes related to making decisions, building relationships, financial security, and communication in future studies. More studies are needed to assess LMIC contexts and health equity issues.

A call for standardised age-disaggregated health data

The 2030 Sustainable Development Goals agenda calls for health data to be disaggregated by age. However, age groupings used to record and report health data vary greatly, hindering the harmonisation, comparability, and usefulness of these data, within and across countries. This variability has become especially evident during the COVID-19 pandemic, when there was an urgent need for rapid cross-country analyses of epidemiological patterns by age to direct public health action, but such analyses were limited by the lack of standard age categories. In this Personal View, we propose a recommended set of age groupings to address this issue. These groupings are informed by age-specific patterns of morbidity, mortality, and health risks, and by opportunities for prevention and disease intervention. We recommend age groupings of 5 years for all health data, except for those younger than 5 years, during which time there are rapid biological and physiological changes that justify a finer disaggregation. Although the focus of this Personal View is on the standardisation of the analysis and display of age groups, we also outline the challenges faced in collecting data on exact age, especially for health facilities and surveillance data. The proposed age disaggregation should facilitate targeted, age-specific policies and actions for health care and disease management.

Investigating the performance of exploratory graph analysis and traditional techniques to identify the number of latent factors: A simulation and tutorial

Exploratory graph analysis (EGA) is a new technique that was recently proposed within the framework of network psychometrics to estimate the number of factors underlying multivariate data. Unlike other methods, EGA produces a visual guide-network plot-that not only indicates the number of dimensions to retain, but also which items cluster together and their level of association. Although previous studies have found EGA to be superior to traditional methods, they are limited in the conditions considered. These issues are addressed through an extensive simulation study that incorporates a wide range of plausible structures that may be found in practice, including continuous and dichotomous data, and unidimensional and multidimensional structures. Additionally, two new EGA techniques are presented: one that extends EGA to also deal with unidimensional structures, and the other based on the triangulated maximally filtered graph approach (EGAtmfg). Both EGA techniques are compared with 5 widely used factor analytic techniques. Overall, EGA and EGAtmfg are found to perform as well as the most accurate traditional method, parallel analysis, and to produce the best large-sample properties of all the methods evaluated. To facilitate the use and application of EGA, we present a straightforward R tutorial on how to apply and interpret EGA, using scores from a well-known psychological instrument: the Marlowe-Crowne Social Desirability Scale. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Integrated care for older people (ICOPE): from guidelines to demonstrating feasibility

The World Health Organization (WHO) Global strategy and action plan on ageing and health (1) provides a policy framework to align health systems to the diverse needs of older populations. It promotes person-centred care that strengthen older peoples’ intrinsic capacity (physical and mental capacity) and ability to function where they live, a shift away from specialized medical treatment for each disease or condition. With its endorsement in 2016, WHO Member States recognized a pressing need to develop integrated, community-based approaches to prevent declines in intrinsic capacity. To operationalize ‘intrinsic capacity (IC)’, domains closely associated with care dependency were proposed: mobility, cognition, psychological capacity (depressive symptoms), vitality (malnutrition), and sensory capacity (hearing and vision) (2).

PROTOCOL: Health, social care and technological interventions to improve functional ability of older adults: Evidence and gap map

This is a protocol for a Campbell Evidence and Gap Map. The objectives are to identify and assess the available evidence on health, social care and technological interventions to improve functional ability among older adults.

On the ethics of healthy ageing: setting impermissible trade-offs relating to the health and well-being of older adults on the path to universal health coverage

This article aims to clarify the moral underpinning of the policy framework of Healthy Ageing. It is a policy adopted by the World Health Organization designed to operate in alignment with the United Nations (UN) framework of the Sustainable Development Goals (SDGs) and the urgency given for the achievement of Universal Health Coverage (UHC). It particularly reflects on what, if anything, justifies protecting the most basic rights to health and well-being of older adults from possible policy trade-offs on the path to UHC.It argues that the dignity of older adults-under which are nested more specific ideas of self-respect, respect for autonomy, as well as the ethical priority for living well-underpins a categorical moral injunction against imposing the familiar utilitarian calculus as the default criterion for policy trade-offs across age groups. Respect for the dignity of older persons marks the moral threshold that every society ought to uphold even under conditions of relative resource scarcity.The moral constraint on permissible policy trade-offs relating to the health of older adults must reflect an understanding of older persons as active agents in the social structure of (their) well-being, not merely as passive vessels through which a good healthy life may or may not occur. We argue that there are three main domains where trade-offs are unacceptable from the moral point of view: it is impermissible (1) to prioritise key service(s) across different (vulnerable) age groups on the basis of actual or future contribution to society, (2) to prioritise across different age groups when co-prioritisation is warranted by the ethical theory, and (3), to always prioritise (by default) services that improve well-being over those that foster respect for dignity and autonomy.

Healthy ageing: the natural consequences of good nutrition-a conference report

Many countries are witnessing a marked increase in longevity and with this increased lifespan and the desire for healthy ageing, many, however, suffer from the opposite including mental and physical deterioration, lost productivity and quality of life, and increased medical costs. While adequate nutrition is fundamental for good health, it remains unclear what impact various dietary interventions may have on prolonging good quality of life. Studies which span age, geography and income all suggest that access to quality foods, host immunity and response to inflammation/infections, impaired senses (i.e., sight, taste, smell) or mobility are all factors which can limit intake or increase the body's need for specific micronutrients. New clinical studies of healthy ageing are needed and quantitative biomarkers are an essential component, particularly tools which can measure improvements in physiological integrity throughout life, thought to be a primary contributor to a long and productive life (a healthy "lifespan"). A framework for progress has recently been proposed in a WHO report which takes a broad, person-centered focus on healthy ageing, emphasizing the need to better understand an individual's intrinsic capacity, their functional abilities at various life stages, and the impact by mental, and physical health, and the environments they inhabit.

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.

Healthy Ageing: Raising Awareness of Inequalities, Determinants, and What Could Be Done to Improve Health Equity

PURPOSE OF THE STUDY

Social and scientific discourses on healthy ageing and on health equity are increasingly available, yet from a global perspective limited conceptual and analytical work connecting both has been published. This review was done to inform the WHO World Report on Ageing and Health and to inform and encourage further work addressing both healthy aging and equity.

DESIGN AND METHODS

We conducted an extensive literature review on the overlap between both topics, privileging publications from 2005 onward, from low-, middle-, and high-income countries. We also reviewed evidence generated around the WHO Commission on Social Determinants of Health, applicable to ageing and health across the life course.

RESULTS

Based on data from 194 countries, we highlight differences in older adults' health and consider three issues: First, multilevel factors that contribute to differences in healthy ageing, across contexts; second, policies or potential entry points for action that could serve to reduce unfair differences (health inequities); and third, new research areas to address the cause of persistent inequities and gaps in evidence on what can be done to increase healthy ageing and health equity.

IMPLICATIONS

Each of these areas warrant in depth analysis and synthesis, whereas this article presents an overview for further consideration and action.

The World report on ageing and health: a policy framework for healthy ageing

Although populations around the world are rapidly ageing, evidence that increasing longevity is being accompanied by an extended period of good health is scarce. A coherent and focused public health response that spans multiple sectors and stakeholders is urgently needed. To guide this global response, WHO has released the first World report on ageing and health, reviewing current knowledge and gaps and providing a public health framework for action. The report is built around a redefinition of healthy ageing that centres on the notion of functional ability: the combination of the intrinsic capacity of the individual, relevant environmental characteristics, and the interactions between the individual and these characteristics. This Health Policy highlights key findings and recommendations from the report.

Priorities for research on equity and health: towards an equity-focused health research agenda

Piroska Östlin and colleagues argue that a paradigm shift is needed to keep the focus on health equity within the social determinants of health research agenda.

Bridging the gaps between research, policy and practice in low- and middle-income countries: a survey of researchers

BACKGROUND

Many international statements have urged researchers, policy-makers and health care providers to collaborate in efforts to bridge the gaps between research, policy and practice in low- and middle-income countries. We surveyed researchers in 10 countries about their involvement in such efforts.

METHODS

We surveyed 308 researchers who conducted research on one of four clinical areas relevant to the Millennium Development Goals (prevention of malaria, care of women seeking contraception, care of children with diarrhea and care of patients with tuberculosis) in each of 10 low- and middle-income countries (China, Ghana, India, Iran, Kazakhstan, Laos, Mexico, Pakistan, Senegal and Tanzania). We focused on their engagement in three promising bridging activities and examined system-level, organizational and individual correlates of these activities.

RESULTS

Less than half of the researchers surveyed reported that they engaged in one or more of the three promising bridging activities: 27% provided systematic reviews of the research literature to their target audiences, 40% provided access to a searchable database of research products on their topic, and 43% established or maintained long-term partnerships related to their topic with representatives of the target audience. Three factors emerged as statistically significant predictors of respondents' engagement in these activities: the existence of structures and processes to link researchers and their target audiences predicted both the provision of access to a database (odds ratio [OR] 2.62, 95% CI 1.30-5.27) and the establishment or maintenance of partnerships (OR 2.65, 95% CI 1.25-5.64); stability in their contacts predicted the provision of systematic reviews (OR 2.88, 95% CI 1.35-6.13); and having managers and public (government) policy-makers among their target audiences predicted the provision of both systematic reviews (OR 4.57, 95% CI 1.78-11.72) and access to a database (OR 2.55, 95% CI 1.20-5.43).

INTERPRETATION

Our findings suggest potential areas for improvement in light of the bridging strategies targeted at health care providers that have been found to be effective in some contexts and the factors that appear to increase the prospects for using research in policy-making.

Collaboration and “Visibility” of Health Research in the Western Pacific Region

Using more than 3.5 million bibliographic references in Thomson ISI Web of Science (health-related articles, notes, and reviews) and a broad definition of health (covering related social, medical, environmental, and physical sciences) research production, collaboration patterns and “visibility” of that production for largest producers in the Western Pacific Region of the World Health Organization are estimated for the 1992-2001 period. Two findings are of particular interest in relation to the production of relevant knowledge on health topics and equity in the access to this knowledge. The first is that intraregional collaboration is low and that large regional producers of research (ie, Japan, Australia, China, etc) collaborate more with high-income countries from other regions than among themselves within the region, or with smaller regional research producers. The second one is that “visibility” of health research in the region is relatively low, even for high-income countries. High “visibility” research is mostly done with the involvement, through collaboration, of extra-region high-income countries. Collaboration between low-income or middle-income countries is mostly in low “visibility” research.

Addressing social determinants of health inequities: what can the state and civil society do?

In this Health Policy article, we selected and reviewed evidence synthesised by nine knowledge networks established by WHO to support the Commission on the Social Determinants of Health. We have indicated the part that national governments and civil society can play in reducing health inequity. Government action can take three forms: (1) as provider or guarantor of human rights and essential services; (2) as facilitator of policy frameworks that provide the basis for equitable health improvement; and (3) as gatherer and monitor of data about their populations in ways that generate health information about mortality and morbidity and data about health equity. We use examples from the knowledge networks to illustrate some of the options governments have in fulfilling this role. Civil society takes many forms: here, we have used examples of community groups and social movements. Governments and civil society can have important positive roles in addressing health inequity if political will exists.

Problems and progress in public health education

Further development of public health education is critical to improve population health globally. A debate on the relevance and direction of some 400 schools of public health and many other related institutions around the world is therefore timely. Some argue that most public health schools set up in low-income countries blindly follow their counterparts in high-income countries, reproducing classroom-based teaching, churning out epidemiologists with limited understanding of how to work within a health system to address local needs or how to align multiple partners towards population and equity health objectives. Others argue that schools in high-income countries focus on the science, whereas those in low-income countries plagued with resource constraints focus exclusively on the art. This round table discussion asks deans and directors of schools of public health from around the world to identify innovations in public health training, research and practice that will render schools relevant to health and development challenges.

The 10/90 divide in mental health research: trends over a 10-year period

A search (precision value 94%, recall value 93%) of the ISI Web of Science database (1992-2001) revealed that mental health publications accounted for 3-4% of the health literature. A 10/90 divide in internationally accessible mental health literature was evident and remained undiminished through 10 years as low- and middle-income countries (n=152) contributed only 6%, high-income countries (n=54) 94%, and 14 leading high-income countries (with more than 1% contribution for majority of years under consideration) contributed 90% of internationally accessible mental health research. Steps should be taken to improve the research infrastructure and capacity to conduct and disseminate mental health research in general, and on a priority basis in low- and middle-income countries.

Why do case studies on national health research systems matter?: identifying common challenges in low- and middle-income countries

Since health research has become increasingly acknowledged as an important tool for development, many approaches have been undertaken to understand national health research from a systems perspective. This paper reviews 28 case studies that describe or analyse health research systems in 26 low- and middle-income countries. These case studies were sponsored either by the Council on Health Research for Development or the South-East Asia Regional Office of the World Health Organization. In reviewing these case studies, we identify several common challenges facing national health research systems. These challenges include the lack of coordination in research activities; the inadequate participation of stakeholders in research, policy and implementation processes; the lack of demand for research and the low accessibility of research findings. These obstacles are compounded by some fundamental systems constraints, such as the lack of financial resources, human capacities, infrastructure and data. By identifying from these case studies the common challenges of health research systems as well as approaches to overcome these, this paper highlights the potential for case studies to inform policies and strategies for strengthening health research systems, and presents recommendations for future case studies to increase this potential.

Current approaches to national health research systems analysis: a brief overview of the WHO health research system analysis initiative

This article introduces the WHO health research system analysis (HRSA) initiative as an input to the World Health Report 2004 on health research, "Knowledge for Better Health". Section 2 presents the HRSA conceptual framework for operational description and analysis of national health research from a system rather than sector perspective. Section 3 summarizes research projects addressing contemporary cross-national issues, aiming to: provide answers to key questions, further explore contested areas within systems, and improve decision-making on research investment options. Section 4 summarizes the comprehensive country studies on research systems. Section 5 outlines a pilot study on methods for 18 comprehensive country studies, including Brazil, Chile, and Costa Rica. Section 6 concludes that the pilot study and eventual main phase to describe and analyze national health research systems will demonstrate WHO's commitment to strengthening capacity in partnership with countries.

Importance of health research in South Asia

South Asian countries face similar health problems and would benefit from collaboration in health research

Healthy life expectancy: comparison of OECD countries in 2001

OBJECTIVES

To compare average levels of population health for Australia and other OECD countries in 2001.

METHODS

Healthy life expectancies (HALE) for OECD countries for 2001 are based on analysis of mortality data for OECD countries, country-specific estimates of health state prevalences for 135 causes from the Global Burden of Disease 2000 study, and an analysis of 34 health surveys in 28 OECD countries, using novel methods to improve the comparability of self-report data.

RESULTS

HALE at birth ranges from a low of 59.8 years for Turkey to a high of 73.6 years in Japan in 2001. Australia ranks fourth among OECD countries at 71.6 years with a 95% uncertainty interval of 70.9 to 72.8 years, ahead of New Zealand in 13th place at 70.3 years. The equivalent 'lost' healthy years at birth range from around 10 years in OECD countries with lowest life expectancies to around eight years in those with high life expectancies at birth. There is a statistically significant association between higher levels of health expenditure and higher healthy life expectancy across OECD countries, although causal inferences require more sophisticated analyses of the health system and non-health system determinants of levels of health.

CONCLUSIONS

The new methods used in the WHO Multi-Country Household Survey Study have increased the comparability of self-report data across OECD countries, a major step forward in the use of self-reported data on health. Building on this experience, WHO is developing improved health status measurement techniques for a World Health Survey to be carried out in 2002/03.

Global patterns of healthy life expectancy for older women

This paper focuses on patterns of healthy life expectancy for older women around the globe in the year 2000, and on the determinants of differences in disease and injury for older ages. Our study uses data from the World Health Organization for women and men in 191 countries. These data include a summary measure of population health, healthy life expectancy (HALE), which measures the number of years of life expected to be lived in good health, and a complementary measure of the loss of health (disability-adjusted life years or DALYs) due to a comprehensive set of disease and injury causes. We examine two topics in detail: (1) cross-national patterns of female-male differences in healthy life expectancy at age 60; and (2) identification of the major injury and disability causes of disability in women at older ages. Globally, the male-female gap is lower for HALE than for total life expectancy. The sex gap is highest for Russia (10.0 years) and lowest in North Africa and the Middle East, where males and females have similar levels of healthy life expectancy, and in some cases, females have lower levels of healthy life expectancy. We discuss the implications of the findings for international health policy.

Knowledge for better health: a conceptual framework and foundation for health research systems

Health research generates knowledge that can be utilized to improve health system performance and, ultimately, health and health equity. We propose a conceptual framework for health research systems (HRSs) that defines their boundaries, components, goals, and functions. The framework adopts a systems perspective towards HRSs and serves as a foundation for constructing a practical approach to describe and analyse HRSs. The analysis of HRSs should, in turn, provide a better understanding of how research contributes to gains in health and health equity. In this framework, the intrinsic goals of the HRS are the advancement of scientific knowledge and the utilization of knowledge to improve health and health equity. Its four principal functions are stewardship, financing, creating and sustaining resources, and producing and using research. The framework, as it is applied in consultation with countries, will provide countries and donor agencies with relevant inputs to policies and strategies for strengthening HRSs and using knowledge for better health.

Definition and measurement of reproductive health

An internationally agreed conceptual definition of reproductive health is applied to the development and testing of practical indicators for use in the community. Basic criteria are proposed for an interview-based tool to measure reproductive health -- as opposed to morbidity or mortality -- adapting methods from the health status measurement field. Proposed domains and indicators linked to the definition of reproductive health adopted at the International Conference on Population and Development (ICPD) should be comparable across and within diverse populations. Two sets of domains that describe reproductive health are recommended for further development and testing, seven domains that focus directly on health and six others that assess related areas of well-being.

Healthy life expectancy in 191 countries, 1999

We describe here the methods used to produce the first estimates of healthy life expectancy (DALE) for 191 countries in 1999. These were based on estimates of the incidence, prevalence, and disability distributions for 109 disease and injury causes by age group, sex, and region of the world, and an analysis of 60 representative health surveys across the world. We used Sullivan's method to compute healthy life expectancy for men and women in each WHO member country. Japan had the highest average healthy life expectancy of 74.5 years at birth in 1999. The bottom ten countries are all in sub-Saharan Africa, where the HIV-AIDS epidemic is most prevalent, resulting in DALE at birth of less than 35 years. Years of healthy life lost due to disability represent 18% of total life expectancy in the bottom countries, and decreases to around 8% in the countries with the highest healthy life expectancies. Globally, the male-female gap is lower for DALE than for total life expectancy. Healthy life expectancy increases across countries at a faster rate than total life expectancy, suggesting that reductions in mortality are accompanied by reductions in disability. Although women live longer, they spend a greater amount of time with disability. As average levels of health expenditure per capita increase, healthy life expectancy increases at a greater rate than total life expectancy.

Measuring reproductive health: review of community-based approaches to assessing morbidity

This article begins by reviewing selected past approaches to estimating the prevalence of a range of morbidities through the use of household or community-based interview surveys in developed and developing countries. Subsequently, it reviews epidemiological studies that have used a range of methods to estimate the prevalence of reproductive morbidities. A detailed review of recent community or hospital based health interview validation studies that compare self-reported, clinical and laboratory measures is presented. Studies from Bangladesh, Bolivia, China, Egypt, India, Indonesia, Nigeria, Philippines and Turkey provide empirical evidence that self-reported morbidity and observed morbidity measure different phenomena and therefore different aspects of reproductive health and illness. Rather than estimating the prevalence of morbidity, interview-based surveys may provide useful information about the disability or burden associated with reproductive health and illness.

Balancing effectiveness, side-effects and work: women's perceptions and experiences with modern contraceptive technology in Cambodia

This community-based study presents the results of 17 focus-group discussions primarily among poor married women of reproductive age in urban and rural Cambodia regarding their experiences with modern contraceptive methods and their preferences for different technical attributes, including effectiveness, mode of administration, secrecy and rapid return of fertility. Key findings indicate that women who use modern contraceptive technologies desire highly effective methods of birth control. Cambodian women are primarily interested in longer-acting methods, view weight gain positively and are less concerned about a rapid return to fertility upon discontinuation of a method or secrecy from their partners. Women report a high level of side-effects as well as a high level of individual variation between side-effects and each modern contraceptive method used. Women with more knowledge and experience of modern contraceptive technologies alter their preference for highly effective methods based on a method's perceived suitability. Specifically, women may switch from a modern method associated with negative side-effects to a lesser effective traditional method, either to take a break from unwanted side-effects or discontinue modern methods altogether, if another suitable method is unavailable. These and other findings point to the need for greater development and choice of contraceptive methods with different technical attributes; improved information that clearly and simply describes how each method works within a women's body and its expected side-effects; improved access to reproductive health services; and improved assessment of women's underlying burden of reproductive illness not directly associated with modern contraceptives.