A systematic review and meta-analysis of ambient temperature and precipitation with infections from five food-borne bacterial pathogens.

Studies on climate variables and food pathogens are either pathogen- or region-specific, necessitating a consolidated view on the subject. This study aims to systematically review all studies on the association of ambient temperature and precipitation on the incidence of gastroenteritis and bacteraemia from Salmonella, Shigella, Campylobacter, Vibrio, and Listeria species. PubMed, Ovid MEDLINE, Scopus, and Web of Science databases were searched up to 9 March 2023. We screened 3,204 articles for eligibility and included 83 studies in the review and three in the meta-analysis. Except for one study on Campylobacter, all showed a positive association between temperature and Salmonella, Shigella, Vibrio sp., and Campylobacter gastroenteritis. Similarly, most of the included studies showed that precipitation was positively associated with these conditions. These positive associations were found regardless of the effect measure chosen. The pooled incidence rate ratio (IRR) for the three studies that included bacteraemia from Campylobacter and Salmonella sp. was 1.05 (95 per cent confidence interval (95% CI): 1.03, 1.06) for extreme temperature and 1.09 (95% CI: 0.99, 1.19) for extreme precipitation. If current climate trends continue, our findings suggest these pathogens would increase patient morbidity, the need for hospitalization, and prolonged antibiotic courses.

Monkeypox Outbreak 2022, from a Rare Disease to Global Health Emergence: Implications for Travellers.

Monkeypox (mpox), a zoonotic disease caused by the monkeypox virus (MPXV), poses a significant public health threat with the potential for global dissemination beyond its endemic regions in Central and West Africa. This study explores the multifaceted aspects of monkeypox, covering its epidemiology, genomics, travel-related spread, mass gathering implications, and economic consequences. Epidemiologically, mpox exhibits distinct patterns, with variations in age and gender susceptibility. Severe cases can arise in immunocompromised individuals, underscoring the importance of understanding the factors contributing to its transmission. Genomic analysis of MPXV highlights its evolutionary relationship with the variola virus and vaccinia virus. Different MPXV clades exhibit varying levels of virulence and transmission potential, with Clade I associated with higher mortality rates. Moreover, the role of recombination in MPXV evolution remains a subject of interest, with implications for understanding its genetic diversity. Travel and mass gatherings play a pivotal role in the spread of monkeypox. The ease of international travel and increasing globalization have led to outbreaks beyond African borders. The economic ramifications of mpox outbreaks extend beyond public health. Direct treatment costs, productivity losses, and resource-intensive control efforts can strain healthcare systems and economies. While vaccination and mitigation strategies have proven effective, the cost-effectiveness of routine vaccination in non-endemic countries remains a subject of debate. This study emphasizes the role of travel, mass gatherings, and genomics in its spread and underscores the economic impacts on affected regions. Enhancing surveillance, vaccination strategies, and public health measures are essential in controlling this emerging infectious disease.

Commentary: Improving access to cardiac rehabilitation (Heart: Road for health) for Aboriginal and Torres Strait Islander peoples in rural and remote areas of North Queensland.

AIMS: To focus on the needs, challenges and opportunities to improve access to cardiac rehabilitation (CR) (Heart: Road to health [HRH]) for Aboriginal and Torres Strait Islander peoples in rural and remote (R&R) areas of North Queensland. CONTEXT: It is known that there is insufficient access to HRH for Aboriginal and Torres Strait Islander peoples in R&R areas of NQ, who have the highest rates of heart disease and socioeconomic disadvantage mainly due to poor social determinants of health. However, at least in part due to the impact of colonialism and predominantly western medicalised approach to health care, few gains have been made. APPROACH: This commentary draws on recent research and literature and reflects on cultural issues that impact on improving access to an HRH for Aboriginal and Torres Strait Islander peoples in R&R areas. The underutilisation of the skills of Aboriginal and Torres Strait Islander Health Workers (ATSIHW) and a lack of a defined process to ensure access to culturally responsive HRH are discussed. Finally, a way forward is proposed that includes the development of policies, pathways and guidelines to ensure that appropriate support is available in the client's home community. CONCLUSION: It is proposed that culturally responsive, accessible and effective HRH is achievable through the reorientation of current health systems that include a continuous client-centred pathway from hospital to home. In this model, ATSIHW will take a lead or partnership role in which their clinical, cultural brokerage and health promotion skills are fully utilised.

Cervical spine injuries occurring at the beach: epidemiology, mechanism of injury and risk factors.

OBJECTIVE: Surf zone injuries include cervical spine injuries (CSI). Risk factors for CSI have not been extensively investigated. The objective was to examine risk factors associated with diagnosed CSI that occurred in a beach setting. METHODS: This retrospective case series used manually linked data from Sunshine Coast Hospital and Health Service Emergency Departments, Queensland Ambulance Service, Surf Life Saving Queensland (SLSQ), and Bureau of Meteorology data from 01/01/2015-21/04/2021. Variables included victim demographics, mechanism of injury, scene information, and patient course. RESULTS: Seventy-nine of the 574 (13.8%) confirmed CSI occurred at the beach. Local residents and visitors were injured equally. Females represented a minority (12.7%) of those diagnosed with CSI but were a higher proportion of suspected spinal incidents reported to SLSQ (45%). Surfers were more likely to be injured through shallow water diving than swimmers (27.6% vs 2.2%). Females were more likely to be injured by shallow water diving than males (30.0% vs 8.7%). Visitors were more likely to be injured swimming and local residents surfing (68.2% vs 77.8% respectively). CSI occurred most commonly (40.0%) with a below average ocean wave height (0.75-1.25 m) and were most likely (45.3%) to occur in the second half of the outgoing tide. One beach had a statistically significant greater incidence of spinal incidents (OR 3.9, 95% CI: 2.1-7.2) and of CSI (OR 10.7, 95% CI: 1.5-79.5). CONCLUSIONS: Risk factors for CSI at the beach include male sex, smaller wave height and an outgoing tide. Shallow water diving among surfers and females should be addressed urgently.

Challenges in the delivery of sex education for people with intellectual disabilities: A Chinese cultural-contextual analysis.

BACKGROUND: Staff members' views can have a significant impact on sexuality issues of people with intellectual disabilities. Research on the impact of sociocultural factors in this area in the Chinese context is sparse. METHODS: Semi-structured interviews were conducted with seven professionals (social worker, nurse, life skills trainer and manager) to explore their experiences of and attitudes towards the sexual needs of people with intellectual disabilities by applying interpretative phenomenological analysis. RESULTS: The study identified two major themes, each with two sub-themes: 1. Professional handling of the sexual needs of people with intellectual disabilities (sex education and intervention); 2. Barriers (incompatible approaches and parental resistance). Participants also experienced feelings of resignation facing the barriers they encountered. Collectivism and cultural view about sex are potentially the influencing factors. CONCLUSION: This study highlights the need to adopt an evidence-based sex education programme whose content and delivery should take account of cultural factors.

Importance of cardiac rehabilitation in rural and remote areas of Australia.

OBJECTIVE: To assess implementation of in-patient cardiac rehabilitation (Phase-1-cardiac rehabilitation), impact on people in rural and remote areas of Australia and potential methods for addressing identified weaknesses. DESIGN: Exploratory case study methodology using qualitative and quantitative methods. Qualitative data collection via semi-structured interviews, using thematic analysis, augmented by quantitative data collection via a medical record audit. SETTING: Four regional hospitals (2 Queensland Health and 2 private) providing tertiary health care. PARTICIPANTS: (a) Hospital in-patients with heart disease ≥18 years. (b) Staff responsible for their care. OUTCOME MEASURES: Implementation of Phase-1-cardiac rehabilitation in tertiary hosptials in North Queensland and the impact on in-patients discharge planning and post discharge care. Recommentations and implications for practice are proposed to address deficits. RESULTS: Phase-1-cardiac rehabilitation implementation rates, in-patient understanding and multidisciplinary team involvement were low. The highest rates of Phase-1-cardiac rehabilitation were for in-patients with a length of stay three days or more  in cardiac units with cardiac educators. Rates were lower in cardiac units with no cardiac educators, and lowest for in-patients in all areas of all hospitals with length of stay of two days or less days. Low Phase-1-cardiac rehabilitation implementation rates resulted in poor in-patient understanding about their disease, treatment and post-discharge care. Further, medical discharge summaries rarely mentioned cardiac rehabilitation/secondary prevention or risk factor management resulting in a lack of information for health care providers on cardiac rehabilitation and holistic health care. CONCLUSION: Implementation of Phase-1-cardiac rehabilitation in regional hospitals in this study fell short of recommended best practice, resulting in patients' poor preparation for discharge, and insufficient information on holistic care for health care providers in rural and remote areas. These factors potentially impact on holistic care for people returning home following treatment for heart disease.

Road traffic fatalities in rural and remote Australia from 2006 to 2017: The need for targeted action.

OBJECTIVE: To explore rural motor vehicle collision (MVC) fatalities by trends over time, mode of transport, age, state, sex, and Aboriginal and Torres Strait Islander status. DESIGN: A retrospective total population-based time series was conducted using the Australian Bureau of Statistics (ABS) death registration data. SETTING: All statistical local area (SLA) within Australia from 2006 to 2017. PARTICIPANTS: Australian residents whose deaths were registered with the ABS between 01 January 2006 and 31 December 2017 where the underlying cause of death was related to unintentional transport accidents. MAIN OUTCOME MEASURES: Fatality rates were determined using population data collected from the 2006, 2011 and 2016 census. Trends over time by rurality were analysed by financial year. Rates of transport deaths by vehicle type were determined by rurality. Risk ratios were calculated to compare demographic groups based on sex, Aboriginal and Torres Strait Islander status and age. A 3-year scorecard was organised by state and rurality using 99.7% confidence intervals. RESULTS: Motor vehicle collision fatalities increase with increasing remoteness. Females, children from 0 to 14 years, pedestrians, and Aboriginal and Torres Strait Islander peoples are at a significantly higher risk of fatal MVCs than their respective metropolitan counterparts. The 3-year scorecard indicates that road fatality rates in the NT, WA, and all rural and remote areas required immediate attention and targeted action. CONCLUSIONS: There is a need for investment in MVC fatality prevention in rural Australia from inner regional to remote areas in order to meet the road safety targets established by the National Road Safety Strategy.

Cardiac rehabilitation in rural and remote areas of North Queensland: How well are we doing?

OBJECTIVE: To address access to cardiac rehabilitation (CR) for people in R&R areas, this research aimed to investigate: (1) post discharge systems and support for people returning home from hospital following treatment for heart disease (HD). (2) propose changes to improve access to CR in R&R areas of NQ. SETTING: Four focus communities in R&R areas of NQ. PARTICIPANTS: Focus communities' health staff (resident/visiting) (57), community leaders (10) and community residents (44), discharged from hospital in past 5 years following treatment for heart disease (purposeful sampling). DESIGN: A qualitative descriptive case study, with data collection via semi-structured interviews. Inductive/deductive thematic analysis was used to identify primary and secondary themes. Health service audit of selected communities. RESULTS: Health services in the focus communities included multipurpose health services, and primary health care centres staffed by resident and visiting staff that included nurses, Aboriginal and Torres Strait Islander Health Workers, medical officers, and allied health professionals. Post-discharge health care for people with HD was predominantly clinical. Barriers to CR included low referrals to community-based health professions by discharging hospitals; poorly defined referral pathways; lack of guidelines; inadequate understanding of holistic, multidisciplinary CR by health staff, community participants and leaders; limited centre-based CR services; lack of awareness, or acceptance of telephone support services. CONCLUSION: To address barriers identified for CR in R&R areas, health care systems' revision, including development of referral pathways to local health professionals, CR guidelines and in-service education, is required to developing a model of care that focuses on self-management and education: Heart: Road to Health.

Comparing rural traffic safety in Canada and Australia: a scoping review of the literature.

INTRODUCTION: The reduction of road fatalities is a priority established by the WHO and ratified by the UN. Rates of road fatalities are disproportionately high in rural areas in both Australia and Canada, two Commonwealth countries with comparable healthcare systems and rural health challenges. The purpose of this review was to compare and contrast the epidemiology, risk factors and prevention strategies of rural road fatalities in both countries to inform the next steps for prevention. METHODS: A scoping literature review was undertaken systematically to search for peer-reviewed literature published from January 2000 to June 2021. Articles were reviewed from five databases (EMCARE, Medline, CINAHL, Scopus and Informit). Search terms were adapted to suit each database and included combinations of keywords such as 'traffic accident', 'fatality', 'rural/remote', 'Australia' and 'Canada'. Themes and data associated with the research outcomes were extracted and tabulated. RESULTS: Forty-three papers were identified as relevant: 14 exploring epidemiology, 25 investigating risk factors and 37 proposing prevention strategies. People living in rural locations were 3.2 (95% confidence interval: 3.0-3.5) times more likely than urban dwellers to die in road-related incidents, with rates of motor vehicle fatalities universally higher. Common risk factors included drugs and alcohol, speed, driver error and biological sex. Key prevention strategies included improved infrastructure, vehicle design, impaired driving prevention and education. CONCLUSION: Further research regarding preventative measures and significant investment in rural road safety in both Australia and Canada are needed to prevent future incidents.

Treatment of the lung injury of drowning: a systematic review.

BACKGROUND: Drowning is a cause of significant global mortality. The mechanism of injury involves inhalation of water, lung injury and hypoxia. This systematic review addressed the following question: In drowning patients with lung injury, what is the evidence from primary studies regarding treatment strategies and subsequent patient outcomes? METHODS: The search strategy utilised PRISMA guidelines. Databases searched were MEDLINE, EMBASE, CINAHL, Web of Science and SCOPUS. There were no restrictions on publication date or age of participants. Quality of evidence was evaluated using GRADE methodology. RESULTS: Forty-one papers were included. The quality of evidence was very low. Seventeen papers addressed the lung injury of drowning in their research question and 24 had less specific research questions, however included relevant outcome data. There were 21 studies regarding extra-corporeal life support, 14 papers covering the theme of ventilation strategies, 14 addressed antibiotic use, seven papers addressed steroid use and five studies investigating diuretic use. There were no clinical trials. One retrospective comparison of therapeutic strategies was found. There was insufficient evidence to make recommendations as to best practice when supplemental oxygen alone is insufficient. Mechanical ventilation is associated with barotrauma in drowning patients, but the evidence predates the practice of lung protective ventilation. There was insufficient evidence to make recommendations regarding adjuvant therapies. CONCLUSIONS: Treating the lung injury of drowning has a limited evidentiary basis. There is an urgent need for comparative studies of therapeutic strategies in drowning.

A scoping review of female drowning: an underexplored issue in five high-income countries.

BACKGROUND: Drowning is a significant public health issue, with females accounting for one third of global drowning deaths. The rate of female drowning has not decreased within high-income countries and presentations to hospital have increased. This scoping review aimed to explore adult female unintentional drowning, including risk factors, clinical treatment and outcomes of females hospitalised for drowning. METHODS: A systematic search of the literature following the PRISMA-ScR framework was undertaken. The databases OVID MEDLINE, Embase, CINAHL, OVID Emcare, Web of Science, Informit and Scopus were accessed. Study locations of focus were Australia, Canada, New Zealand, the United Kingdom, and the United States. Studies from January 2003 to April 2019 were included. The quality of evidence of included studies was assessed using GRADE guidelines. RESULTS: The final search results included 14 studies from Australia (n = 4), Canada (n = 1), New Zealand (n = 1), United States (n = 6), United Kingdom (n = 1), and one study reporting data from both Australia and United States. Nine studies reported risk factors for female drowning including age, with the proportion of female drowning incidence increasing with age. Although females are now engaging in risk-taking behaviours associated with drowning that are similar to males, such as consuming alcohol and swimming in unsafe locations, their exposure to risky situations and ways they assess risk, differ. Females are more likely to drown from accidental entry into water, such as in a vehicle during a flood or fall into water. This review found no evidence on the clinical treatment provided to females in hospital after a drowning incident, and only a small number of studies reported the clinical outcomes of females, with inconsistent results (some studies reported better and some no difference in clinical outcomes among females). CONCLUSION: Adult females are a group vulnerable to drowning, that have lacked attention. There was no single study found which focused solely on female drowning. There is a need for further research to explore female risk factors, the clinical treatment and outcomes of females hospitalised for drowning. This will not only save the lives of females, but also contribute to an overall reduction in drowning.

Reducing inequities among adult female migrants at higher risk for drowning in Australia: The value of swimming and water safety programs.

ISSUE ADDRESSED: Drowning is a global public health challenge with a need to ensure equity to drowning prevention information and interventions. In Australia, people born overseas are identified as being at greater risk of drowning. This paper presents findings from a community-based qualitative evaluation of swimming and water safety (SWS) programs delivered to adults from migrant backgrounds in Sydney, Australia. METHODS: A qualitative study was conducted in November-December 2019 among 35 female participants of SWS programs targeted to adult migrants. While offered to all SWS program participants, no males took part in the study. Focus groups and interviews were recorded, transcribed and thematically analysed using a deductive approach. The domains of enquiry were guided by the health belief model and the theory of planned behaviour. RESULTS: Study participants were ≥25 years, first generation and most had lived in Australia for ≥10 years. Most were nonswimmers and were fearful of water prior to the program. Key themes were: direct SWS program outcomes, health and well-being; enablers and barriers to participation including: motivation, a program coordinator, fear and settlement priorities. CONCLUSION: Findings suggest that in order to increase SWS participation among migrant communities, the broader determinants of health need to be considered. Culturally appropriate strategies are required to enable both men and women equal opportunities to access SWS programs. SO WHAT: SWS programs provide multiple benefits for adult migrants; however, the impact on reducing inequities is limited, with broader multi-strategic health promotion approaches and policies required for inclusion and sustainability.

Developing drowning prevention strategies for rivers through the use of a modified Delphi process.

INTRODUCTION: Internationally, rivers are a leading drowning location, yet little evidence exists evaluating river drowning prevention strategies. This study aims to use expert opinion to identify strategies more likely to be effective. METHODS: Using a modified Delphi process, a virtual panel of 30 experts from 12 countries considered, grouped and prioritised strategies for river drowning prevention. Proposed strategies were assessed against known evidence and suitability in high-income countries (HICs) as well as low-income and middle-income countries (LMICs) using expert opinion. The final phase consolidated a list of strategies whose effectiveness was assessed against 10 evidence-based river drowning scenarios. RESULTS: An initial list of 424 prevention strategies was refined to 22. After being assessed against the 10 scenarios, a final list of 13 strategies was derived. Strategies addressed alcohol consumption around rivers, flood mitigation, improving child supervision, learning to swim, increased lifejacket wear and achieving community-wide resuscitation skills. DISCUSSION: While all 13 strategies were assessed as being effective in both LMICs and HICs by at least 60% of the respondents, further work is required to define river drowning at a country level and therefore allow for effective solutions to be developed, particularly in LMICs. No strategy will be effective in isolation and must be implemented alongside policy and behaviour change, public awareness and education. Evaluation should be incorporated as part of any future implementation of strategies. CONCLUSION: This Delphi process identified 13 drowning prevention strategies for rivers. Further research is required to validate the efficacy of these findings through implementation and evaluation.

Identifying a gap in drowning prevention: high-risk populations.

INTRODUCTION: Some populations have been less susceptible to reductions in drowning than others. It has been hypothesised that this is due to prevention strategies failing to account for the influence of social determinants (such as ethnicity, socioeconomic status). Populations such as ethnic minorities have been over-represented in injury statistics, however this is not well explored in drowning. This study aims to identify high-risk populations for drowning, risk factors and prevention strategies. METHODS: A literature review undertaken systematically using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses approach was conducted of peer-reviewed literature in English, published between 1990 and 2018 from high-income countries. Search terms included drowning, water safety, ethnic minority, migrant, and culturally diverse. RESULTS: In total, 35 articles were included. High-risk populations identified were: ethnic minorities, First Nations/Aboriginal people, migrants and rural residents. Over half (51%) focused on children (0-18 years). Risk factors included social determinants, swimming ability and knowledge, attitudes and behaviour. Four intervention studies were found; two focused on upskilling adults from high-risk populations to increase employment opportunities within the aquatic industry; an evaluation of a 10-year rock fishing safety education project and a learn-to-swim programme for minority children. Proposed prevention strategies included education, practical skills, research, policy and engagement. DISCUSSION: Limited literature exists pertaining to drowning among adults from high-risk populations. There is a need to increase the sophistication of drowning prevention strategies addressing the disparities in drowning from a culturally appropriate perspective. Acknowledging the role of the social determinants of health in drowning prevention is essential in order to improve drowning outcomes for high-risk populations globally.

Exploring Australian residents cycling engagement - Differences in self-reported cycling behaviour between urban and rural dwelling Queenslanders.

ISSUE ADDRESSED: Cycling participation rates in Australia and Queensland remain low. Rural residents typically do not have distinct cycling infrastructure available for use. Investigating current cycling participation and barriers to cycling engagement will inform future work to promote cycling engagement. METHODS: Data were collected through the inclusion of cycling-related questions in the 2012 Queensland Social Survey. RESULTS: The majority of the sample had not cycled in the previous 12 months (66%; n = 831). Significantly more rural residents reported not cycling due to environmental concerns (P < 0.05) and preferring other modes of transport or exercise (P < 0.01). Rural cyclists (31.4%; n = 113) had higher levels of cycling engagement in the previous week (41.6% to 32.6% urban; χ2  = 7.83; n = 420; P < 0.05) but lower cycling durations than urban cyclists (41.6% rural residents cycling for 30+ minutes vs 57.4% urban residents; χ2  = 8.25; n = 418; P < 0.01). Rural cycling engagement was independently associated with being male (OR = 2.34; 95% CI = 1.40-3.91); sufficient physical activity engagement (OR = 1.86; 95% CI = 1.10-3.15); and having children at place of residence (1-2 children: OR = 3.21; 95% CI = 1.88-5.49; 3+ children: OR = 3.01; 95% CI = 1.17-7.75). CONCLUSIONS: One-third of all adults cycled in the previous 12 months irrespective of location; however reasons for not cycling varied by urban/rural location. Results indicate that environmental factors appear to be inhibiting cycling participation in rural areas. Advocating for government commitment for infrastructure development to support safe cycling across Queensland including outside of metropolitan areas is required. SO WHAT?: This research explores self-reported cycling engagement amongst a sample of urban and rural dwelling Queenslanders. Differences in cycling exposure and reasons for lack of engagement offer insights into what may encourage greater cycling participation.

Heart disease, hospitalisation and referral: Coaching to Achieving Cardiovascular Health through cardiac rehabilitation in Queensland.

OBJECTIVES: To describe rates of hospitalisation and Coaching on Achieving Cardiovascular Health referral, for Queensland's adults with heart and related disease, and comparisons between Aboriginal and Torres Strait Islander and non-Indigenous peoples in northern Queensland. DESIGN: Descriptive retrospective epidemiological study of Queensland Health Patient Admission Data Collection for adults with heart and related disease, and Coaching on Achieving Cardiovascular Health referral data. Relative risk and age standardisation were calculated for Aboriginal and Torres Strait Islander and non-Indigenous peoples. PARTICIPANTS: Queensland's adults ≥20 years, hospitalised with heart and related disease (1 January 2012-31 December 2016). SETTING: Queensland, Australia. MAIN OUTCOME MEASURES: Queensland Health Hospital and Health Services' hospitalisation and Coaching on Achieving Cardiovascular Health referral rates for heart and related disease. RESULTS: Queensland's Aboriginal and Torres Strait Islander peoples have a higher hospitalisation rate for heart and related disease, with higher rates for northern Queensland. Queensland's overall Coaching on Achieving Cardiovascular Health referral rates were low, but higher for Aboriginal and Torres Strait Islander peoples. Deficiencies in documentation of Aboriginal and Torres Strait Islander people's status affected results in some areas. CONCLUSION: Queensland's Aboriginal and Torres Strait Islander peoples were more likely to be admitted to hospital for heart and related disease and referred to Coaching on Achieving Cardiovascular Health than non-Indigenous peoples. However, hospitalisation and Coaching on Achieving Cardiovascular Health referral rates are unlikely to reflect the needs of Aboriginal and Torres Strait Islander peoples especially in rural and very remote areas given their higher mortality and morbidity rates and fewer services.

Preventive chemotherapy reverses covert, lymphatic-associated tissue change in young people with lymphatic filariasis in Myanmar.

OBJECTIVES: This longitudinal comparative study investigated the effect of preventive chemotherapy (PC) on covert tissue changes associated with lymphatic filariasis (LF) among young people living in an LF-endemic area in Myanmar. METHODS: Tissue compressibility and extracellular free fluid in the lower limbs of people aged 10-21 years were measured using indurometry and bioimpedance spectroscopy (BIS). Baseline measures were taken in October 2014, annual mass drug administration (MDA) of PC was delivered in December, and in March 2015 further PC was offered to LF-positive cases who had missed MDA. Follow-up measures were taken in February and June 2015. RESULTS: A total of 50 antigen-positive cases and 46 antigen-negative controls were included. Self-reported PC consumption was 60.1% during 2014 MDA and 66.2% overall. At second follow-up, 24 of 34 cases and 27 of 43 controls had consumed PC. Significant and clinically relevant between-group differences at baseline were not found post-PC. Bayesian linear mixed models showed a significant change in indurometer scores at both calves for antigen-positive cases who consumed any PC (dominant calf: -0.30 [95% CI -0.52, -0.07], P < 0.05 and non-dominant calf: -0.35 [95% CI -0.58, -0.12], P < 0.01). Changes in antigen-negative participants or those not consuming PC were not significant. CONCLUSION: This study is the first attempt to use simple field-friendly tools to track fluid and tissue changes after treatment of asymptomatic people infected with LF. Results suggested that PC alone is sufficient to reverse covert lymphatic disturbance. Longer follow-up of larger cohorts is required to confirm these improvements and whether they persist over time. These findings should prompt increased efforts to overcome low PC coverage, which misses many infected young people, particularly males, who are unaware of their infection status, unmotivated to take PC and at risk of developing lymphoedema. Indurometry and BIS should be considered in assessment of lymphatic filariasis-related lymphedema.

OBJECTIFS: Cette étude comparative longitudinale a investigué l'effet de la chimiothérapie préventive (CP) sur les modifications tissulaires cachées associées à la filariose lymphatique (FL) chez les jeunes vivant dans une zone d'endémie pour la FL au Myanmar. MÉTHODES: La compressibilité des tissus et le liquide libre extracellulaire dans les membres inférieurs des personnes âgées de 10 à 21 ans ont été mesurés par indurométrie et spectroscopie de bioimpédance (BIS). Les mesures de base ont été prises en octobre 2014, la distribution en masse de médicament (DMM) annuelle a été administrée en décembre et en mars 2015, et une CP additionnelle a été offerte aux cas positifs pour la FL qui avaient manqué la DMM. Des mesures de suivi ont été prises en février et juin 2015. RÉSULTATS: 50 cas positifs pour l'antigène et 46 témoins négatifs ont été inclus. L'administration de CP auto-déclarée était de 60,1% durant la DMM de 2014 et de 66,2% au total. Au deuxième suivi, 24 des 34 cas et 27 des 43 témoins avaient pris la CP. Des différences significatives et cliniquement pertinentes entre les groupes au départ n'ont pas été trouvées après la CP. Les modèles mixtes linéaires bayésiens ont montré un changement significatif des scores d'indurometrie aux deux mollets pour les cas positifs pour l'antigène qui prenaient une CP (mollet dominant: -0,30 [IC95%: -0,52, -0,07], p <0,05, mollet non dominant: - 0,35 [IC95%: -0,58, -0,12], p <0,01). Les changements chez les participants négatifs pour l'antigène ou ceux qui ne prenaient pas de CP n'étaient pas significatifs. CONCLUSION: Cette étude est la première tentative d'utilisation d'outils simples, conviviaux sur le terrain, pour suivre les modifications du tissu conjonctif après le traitement de personnes asymptomatiques infectées par la FL. Les résultats suggèrent que la CP seule est suffisante pour inverser les modifications lymphatiques cachées. Un suivi plus long de plus grandes cohortes est nécessaire pour confirmer ces améliorations et déterminer si elles persistent ou non. Ces résultats devraient inciter à redoubler d'efforts pour surmonter la faible couverture en CP, qui rate beaucoup de jeunes infectés, en particulier les hommes, qui ne sont pas au courant de leur statut d'infection, qui ne sont pas motivés pour prendre une CP et risquent de développer un lymphœdème. L'indurométrie et la BIS devraient être considérées dans l'évaluation du lymphoedème associé à la filariose lymphatique.

Exploring visitation at rivers to understand drowning risk.

INTRODUCTION: Globally, rivers are a common drowning location. In Australia, rivers are the leading location for fatal drowning. Limited information exists on exposure and impact on river drowning risk. METHODS: Australian unintentional fatal river drowning data (sourced from coronial records) and nationally representative survey data on river visitation were used to estimate river drowning risk based on exposure for adults (18 years and older). Differences in river drowning rates per 100 000 (population and exposed population) were examined by sex, age group, activity prior to drowning, alcohol presence and watercraft usage. RESULTS: Between 1 January 2014 and 31 December 2016, 151 people drowned in Australian rivers; 86% male and 40% aged 18-34 years. Of survey respondents, 73% had visited a river within the last 12 months. After adjusting for exposure: males were 7.6 times more likely to drown at rivers; female drowning rate increased by 50% (0.06-0.09 per 100 000); males aged 75+ years and females aged 55-74 years were at highest risk of river drowning; and swimming and recreating pose a high risk to both males and females. After adjusting for exposure, males were more likely to drown with alcohol present (RR=8.5; 95% CI 2.6 to 27.4) and in a watercraft-related incident (RR=25.5; 95% CI 3.5 to 186.9). CONCLUSIONS: Calculating exposure for river drowning is challenging due to diverse usage, time spent and number of visits. While males were more likely to drown, the differences between males and females narrow after adjusting for exposure. This is an important factor to consider when designing and implementing drowning prevention strategies to effectively target those at risk.

Cardiopulmonary resuscitation and first-aid training of river users in Australia: A strategy for reducing drowning.

ISSUE ADDRESSED: Rivers are a leading location for fatal drowning worldwide, often geographically isolated from timely medical assistance. Cardiopulmonary resuscitation (CPR) benefits drowning victims and those who suffer cardiac arrests. This study explored CPR and first-aid training of river users in Australia. METHODS: Adult river users (18+ years) were surveyed at four high-risk river drowning sites. Respondents were asked the last time they undertook CPR (responses converted into: "CPR ever undertaken"-yes/no; and "CPR training current"-yes/no (training undertaken ≤12 months ago). Responses were explored by demographics and social determinants of health. RESULTS: Of those surveyed (N = 688), 98.4% responded regarding CPR. Seventy-five percent (74.9%) had undertaken CPR training previously. Females and 35- to 44-year-olds were more likely to have undertaken training (P < 0.05). Males and older people (65+ years) were less likely to hold a current qualification (P < 0.05). Major city residents reported a longer mean time (5.4 years) since last trained than remote and very remote locations (2.0 years). People in low socio-economic areas had a shorter time since qualification current (5.8 years) than those in areas deemed high (7.2 years). CONCLUSION: Current CPR qualifications are important, particularly among those visiting high-risk river drowning locations. System-level, upstream strategies that should be explored include compulsory CPR training in secondary schools and linking CPR updates to motor vehicle licence renewals. SO WHAT?: Cardiopulmonary resuscitation is a vital component of multifaceted river drowning prevention. Social determinants of health, such as socio-economic disadvantage and geographical isolation, were not barriers to participation or currency of qualification.

Breathalysing and surveying river users in Australia to understand alcohol consumption and attitudes toward drowning risk.

BACKGROUND: Little is known about people's river usage, a leading drowning location. This study examines alcohol consumption patterns of river users and their attitudes to drowning risk. METHODS: A convenience sample of adult (18+ years) river users were surveyed at four river locations. The survey covered eight domains: demographics; river attendance frequency; frequency of engaging in water activities; drinking patterns; alcohol and water safety knowledge; alcohol and water safety attitudes; alcohol consumption; and Blood Alcohol Concentration (BAC). For BAC, participants were asked to record time since their last alcoholic drink and were then breathalysed to record an estimate of their BAC. BAC was examined by BAC reading (negative, positive, ≥0.050%). Hazardous lifetime drinking levels were calculated and their impact on drowning risk evaluated. Univariate and chi square analysis (95% confidence interval) was conducted. RESULTS: Six hundred eighty four people participated (51.6% female; 49.0% aged 18-34 years). Sixteen percent (15.9%) had a positive BAC (Mean + BAC = 0.068%; SD ± 0.08; Range = 0.001-0.334%), with 7.2% ≥0.050% (Mean BAC ≥0.050% =0.132%; SD ± 0.06). Those significantly more likely to record a BAC ≥0.050% at the river were: aged 18-34 years, resided in inner regional and low socio-economic areas, visited the river in the afternoon, with friends, on days with higher maximum air temperatures, frequent river users (11+ times in the last 30 days) and those who spend longer in the water (301+ minutes). River users who recorded a BAC ≥0.050% were more likely to self-report engaging in risky activities (i.e. diving into water of unknown depth and jumping into the river from height). River users on Australia day (a national public holiday) were significantly more likely to drink heavily (Mean BAC ≥0.05% = 0.175%; SD ± 0.09). CONCLUSIONS: Despite males accounting for 85% of alcohol-related river drowning deaths, similar numbers of males and females were consuming alcohol at the river. This study has addressed a gap in knowledge by identifying river usage and alcohol consumption patterns among those at increased drowning risk. Implications for prevention include delivering alcohol-related river drowning prevention strategies to both males and females; at peak times including during hot weather, afternoons, public holidays and to river users who swim.