A realist synthesis of cross-border patient movement from low and middle income countries to similar or higher income countries

Patient travel across borders to access healthcare is becoming increasingly common and widespread. Patients moving from high income to middle income countries for healthcare is well documented, with patients seeking treatments that are cheaper or more readily available than at home. Less well understood is when patients move from one low income country to another or from a low income country to a higher income country. In this paper, a realist review was undertaken to explore why, in what contexts and how patients from lower income countries travel to countries with the same, or more advanced, economies for planned healthcare. Based on an initial scoping of the literature and discussions with key informants, we generated an initial theory and set of propositions about why, how, who and in what contexts people cross international borders for planned healthcare. We then systematically located and synthesized (1) peer-reviewed studies from the Scopus, Embase, Web of Science and Econlit databases; (2) non-indexed reports using key informants and Google and (3) papers from the reference lists of included documents, to glean supportive or contradictory evidence for our initial propositions. As we reviewed the literature and extracted our data, we drew on the work of Pierre Bourdieu to understand the interplay between material and non-material capital and cognitive processes in decisions to cross borders for healthcare. Patient travel was largely undertaken due to a lack of services in the home country and/or unacceptability of local services, with decisions on when, and where, to travel, usually made within the patient's social networks. They were able to travel via use of multiple resources, including social networks, economic and cultural capital, and habitus. Those patients with greater volumes of the aforementioned factors had greater healthcare options; however, even those with limited resources engaged in patient travel. Patient movement challenges traditional ways of thinking about public health and the notion of health systems contained within the nation state. Further research is needed to better understand the effects of patient travel, and how to harness the benefits of patient travel without exacerbating existing health inequalities

Research protocol: a realist synthesis of cross-border patient mobility from low-income and middle-income countries

Introduction: People are increasingly mobile for numerous reasons, including healthcare. Patient mobility has vast implications for individuals, communities and whole populations and yet, to date, research on patient mobility has been quite limited. Only a small body of evidence exists on patient mobility between low-income and middle-income countries, instead having focused primarily on cross-border movement between high-income and low-income countries. In this paper, we present a protocol for examining this under-studied phenomenon

Interventions for Increasing HIV Testing Uptake in Migrants: A Systematic Review of Evidence

Migrants have been identified as being at greater risk for late HIV testing and diagnosis. Late diagnosis is of concern because timely diagnosis and initiation of treatment can both optimise health outcomes and reduce transmission. We reviewed and evaluated interventions that aimed to increase HIV testing uptake in migrant populations. Of 6511 papers retrieved, 10 met the inclusion criteria and were included in the review. Three types of interventions were identified (exposure to HIV prevention messages, HIV education programs, and direct offer of testing). All interventions were based on individual models of behaviour change targeting migrants or GPs. While important, interventions that also address broader health system and structural factors that contribute to late HIV-diagnosis in at-risk members of migrant populations are needed. Integrating PITC into existing primary healthcare settings shows promise of creating an enabling environment within patient-doctor relationships that can encourage HIV testing uptake among migrant populations

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Towards a type-based analysis of real PKCS#11 devices

PKCS#11, is a security API for cryptographic tokens. It is known to be vulnerable to attacks which can directly extract, as cleartext, the value of sensitive keys. Fixes proposed in the literature, or implemented in real devices, impose policies restricting key roles and token functionalities. In [7] we have presented a type-based analysis to prove, on abstract API specifications, that the secrecy of sensitive keys is preserved under a certain policy. In this paper we discuss how this type system might be extended to type-check a real security policy implemented in the opencryptoki PKCS#11 software token. This is a first step towards a type-based analysis of real PKCS#11 devices

'I think they might just go to the doctor': Qualitatively examining the (un)acceptability of newer HIV testing approaches among Vietnamese-born migrants in greater-Brisbane, Queensland, Australia

Background: In high-income countries (HICs), migrants often have higher rates of late diagnosis of HIV than the host population. Timely HIV testing has significant implications for HIV prevention and management. Newer HIV testing approaches, namely provider-initiated testing and counselling (PITC), HIV rapid testing (HIV RT) and HIV self-Testing (HIV ST), aim to reach those populations most at risk and, particularly, those who have not previously tested for HIV. Methods: This study used semi-structured interviews to examine the (un)acceptability, barriers and facilitators to newer HIV testing approaches (i.e. PITC, HIV RT and HIV ST) among Vietnamese-born migrants (n = 10) in greater-Brisbane, Queensland, Australia Results: Vietnamese-born migrants had mixed perspectives on the (un)acceptability of newer HIV testing approaches. PITC was largely viewed by participants as a facilitator to HIV testing for Vietnamese-born migrants. Likewise, HIV RT (undertaken by a doctor in a medical setting, as opposed to a trained community member in a community setting) was generally considered to facilitate HIV testing. HIV ST was largely not considered acceptable to Vietnamese-born migrants and they would prefer to go to a doctor for HIV testing. Several factors were identified that either facilitate or act as barriers to newer HIV testing approaches, including privacy; cost of (accessing) HIV testing; comfort and convenience; healthcare provider relationship; risk perception; symptoms; and technical and emotional support. Conclusions: There is a need to understand migrants' HIV testing preferences if poorer HIV-related outcomes are to be overcome. The findings from this study show a preference for doctor-centred HIV testing, due to enhanced privacy, accuracy and support. </p

Study protocol: A clinical trial for improving mental health screening for Aboriginal and Torres Strait Islander pregnant women and mothers of young children using the Kimberley Mum's Mood Scale

Background: Improving the rates of, and instruments used in, screening for perinatal depression and anxiety among Aboriginal and Torres Strait Islander women are important public health priorities. The Kimberley Mum’s Mood Scale (KMMS) was developed and later validated as an effective and acceptable perinatal depression and anxiety screening tool for the Kimberley region under research conditions. Other regions have expressed interest in using the KMMS with perinatal Aboriginal and Torres Strait Islander women. It is, however, important to re-evaluate the KMMS in a larger Kimberley sample via a real world implementation study, and to test for applicability in other remote and regional environments before recommendations for wider use can be made. This paper outlines the protocol for evaluating the process of implementation and establishing the ‘real world’ validity and acceptability of the KMMS in the Kimberley, Pilbara and Far North Queensland in northern Australia. Methods: The study will use a range of quantitative and qualitative methods across all sites. KMMS validation/revalidation internal consistency of Part 1 will be determined using Cronbach’s alpha. Equivalence for identifying risk of depression and anxiety compared to a standard reference assessment will be determined from receiver operating characteristic curves. Sensitivity and specificity will be determined based on these cut-points. Qualitative methods of phenomenology will be used to explore concepts of KMMS user acceptability (women and health professionals). Additional process evaluation methods will collate, assess and report on KMMS quality review data, consultations with health service administrators and management, field notes, and other documentation from the research team. This information will be reported on using the Dynamic Sustainability Framework. Discussion: This project is contributing to the important public health priority of screening Aboriginal and Torres Strait Islander women for perinatal depression and anxiety with tools that are meaningful and responsive to cultural and clinical needs. Identifying and addressing barriers to implementation contributes to our understanding of the complexity of improving routine clinical practie

Does physical activity prevent cognitive decline and dementia?: a systematic review and meta-analysis of longitudinal studies

Background: By 2050, it has been estimated that approximately one-fifth of the population will be made up of older adults (aged ≥60 years). Old age often comes with cognitive decline and dementia. Physical activity may prevent cognitive decline and dementia. Methods: We reviewed and synthesised prospective studies into physical activity and cognitive decline, and physical activity and dementia, published until January 2014. Forty-seven cohorts, derived from two previous systematic reviews and an updated database search, were used in the meta-analyses. Included participants were aged ≥40 years, in good health and/or randomly selected from the community. Studies were assessed for methodological quality. Results: Twenty-one cohorts on physical activity and cognitive decline and twenty-six cohorts on physical activity and dementia were included. Meta-analysis, using the quality-effects model, suggests that participants with higher levels of physical activity, when compared to those with lower levels, are at reduced risk of cognitive decline, RR 0.65, 95% CI 0.55-0.76, and dementia, RR 0.86, 95% CI 0.76-0.97. Sensitivity analyses revealed a more conservative estimate of the impact of physical activity on cognitive decline and dementia for high quality studies, studies reporting effect sizes as ORs, greater number of adjustments (≥10), and longer follow-up time (≥10 years). When one heavily weighted study was excluded, physical activity was associated with an 18% reduction in the risk of dementia (RR 0.82; 0.73-0.91). Conclusions: Longitudinal observational studies show an association between higher levels of physical activity and a reduced risk of cognitive decline and dementia. A case can be made for a causal interpretation. Future research should use objective measures of physical activity, adjust for the full range of confounders and have adequate follow-up length. Ideally, randomised controlled trials will be conducted. Regardless of any effect on cognition, physical activity should be encouraged, as it has been shown to be beneficial on numerous levels