The impact of extreme heat on mass-gathering sporting events: Implications for Australia and other countries.

OBJECTIVES: As temperatures increase across the globe due to climate change, human exposure to extreme heat is a public health challenge. During sporting events, athletes, officials, spectators, and staff are at risk of heat stress and resulting illness. The objective of this review was to explore the impact of heat on the health outcomes of these groups and the wider health system and discuss implications for outdoor mass-gathering sporting events in Australia. DESIGN: A systematic review was undertaken to identify literature published from 2010 to 2023. METHODS: Seven databases were searched: Web of Science, SportDiscus, Scopus, Medline, CINAHL, Emcare, and PsychInfo, for relevant key search terms such as heatwave, heat stress, extreme heat, stadium, arena, sports facilit*, sport, athletic, and Olympic. An inductive thematic analysis was undertaken. Articles were quality checked using Joanna Briggs Institute critical appraisal tools and data were extracted, tabulated, and synthesized. RESULTS: Forty papers were included in the final analysis: 17 quantitative, and 23 descriptive and qualitative (including reviews). Health outcomes explored across the literature included exertional heat illness, exertional heat stroke, hyperthermia, and general heat related illness. Six recommendation themes emerged: planning, mitigation strategies, medical, policy, research, and education. CONCLUSIONS: The impact of heat on health outcomes during sporting events is significant, and should be considered by individuals, coaches, officials, and organizers before, during, and after mass-gathering sporting events. These findings can inform evidence-based preparedness strategies to protect the health of those attending and competing in mass-gathering sporting events now and into the future.

Health systems model for chronic disease secondary prevention in rural and remote areas - Chronic disease: Road to health.

Objectives Cardiac rehabilitation (CR) provides evidence-based secondary prevention for people with heart disease (HD) (clients). Despite HD being the leading cause of mortality and morbidity, CR is under-utilised in Australia. This research investigated healthcare systems required to improve access to CR in rural and remote areas of North Queensland (NQ). Methods A qualitatively dominant case study series to review management systems for CR in rural and remote areas of NQ was undertaken. Data collection was via semi-structured interviews in four tertiary hospitals and four rural or remote communities. An audit of discharge planning and CR referral, plus a review of community-based health services, was completed. An iterative and co-design process including consultation with healthcare staff and community members culminated in a systems-based model for improving access to CR in rural and remote areas. Results Poorly organised CR systems, poor client/staff understanding of discharge planning and low referral rates for secondary prevention, resulted in the majority of clients not accessing secondary prevention, despite resources being available. Revised health systems and management processes were recommended for the proposed Heart: Road to health model, and given common chronic diseases risk factors it was recommended to be broadened into Chronic disease: Road to health . Conclusion A Chronic disease: Road to health model could provide effective and efficient secondary prevention for people with chronic diseases in rural and remote areas. It is proposed that this approach could reduce gaps and duplication in current healthcare services and provide flexible, client-centred, holistic, culturally responsive services, and improve client outcomes.

Working towards 2030 road safety targets, the need for specific rural and remote children strategies.

INTRODUCTION: Despite the importance of child road traffic death, the knowledge about rural child road traffic death in Australia is limited. OBJECTIVE: To explore the difference of child road traffic death between urban and rural areas. DESIGN: This study was a retrospective analysis of road traffic death in Australia among children and adolescents aged 0-19 registered between 1 January 2009 and 30 June 2019. RESULTS: During the study period, there were 1757 child road traffic death in Australia, and the crude mortality rate was 2.96 per 100 000 population. The crude mortality rate in remote (8.83 per 100 000 population) and very remote (11.08 per 100 000 population) areas was much higher than major cities (1.83 per 100 000 population), inner regional (5.14 per 100 000 population) and outer regional (5.91 per 100 000 population). CONCLUSIONS: Specific targets are needed to address the burden of child road traffic death in Australia around rurality, as it is a significant risk factor of child road traffic death.

Where are homicide victims disposed? A study of disposed homicide victims in Queensland.

Not finding a murder victim poses challenges for homicide investigators in solving crime, including determining where to search for the deceased's body. Existing literature focuses on locating offenders through criminal profiling; however, this is largely based on identification through forensic evidence found at the murder site or where the victim was located. This paper considered the challenge of locating a deceased victim from the perspective of search coordinators assisting homicide investigations. Could reference to previous homicide cases provide patterns and trends that may assist in locating disposed victims quicker, thus aiding in preserving vital physical evidence and providing expedient closure for the community? Methods: Through generation of a dataset utilising all Queensland Police recorded homicides from 2004 to 2020 inclusive, statistical analysis was conducted using SPSS™ software to identify common trends and characteristics of victim disposal. These identified commonalities were used to develop the Disposed Homicide Victim Matrix (DHVM), and Search Coordinator Principles, as tools to assist search coordinators in future relevant cases. Results: The study identified four (4) key commonalities observed in the dataset, (1) East is the predominant direction for victim disposal; (2) The offender's vehicle was the most common method of victim transport followed by carrying/dragging; (3) concealment with leaf litter and local debris was the norm, followed by no attempt at concealment; and (4) victims were moved less than 50 m from a road or track after transport. Conclusion: The DHVM can assist police search for these victims by narrowing down potential search locations. Finding a victim has implications throughout the community, providing evidence that could secure a conviction, allowing a measure of grief closure to the co-victims, and inspiring confidence in police.

Examining the relationship between heatwaves and fatal drowning: a case study from Queensland, Australia.

BACKGROUND: Globally, drowning is a leading cause of injury-related harm, which is heavily impacted by environmental conditions. In Australia, fatal unintentional drowning peaks in summer, yet the impact of prolonged periods of hot weather (heatwave) on fatal drowning has not previously been explored. METHODS: Using a case-crossover approach, we examined the difference in drowning risk between heatwave and non-heatwave days for the Australian state of Queensland from 2010 to 2019. Heatwave data, measured by the excess heat factor, were acquired from the Bureau of Meteorology. Incidence rate ratios (IRRs) were calculated by sex, age of drowning decedent, category of drowning incident (International Classification of Diseases-10 codes) and heatwave severity. Excess drowning mortality during heatwaves was also calculated. RESULTS: Analyses reveal increased fatal drowning risk during heatwave for males (IRR 1.22, 95% CI 0.92 to 1.61), people aged 65+ years (IRR 1.36, 95% CI 0.83 to 2.24), unintentional drowning (IRR 1.28, 95% CI 0.98 to 1.69) and during severe heatwaves (IRR 1.26, 95% CI0.88 to 1.82). There were 13 excess drowning deaths due to heatwave over the study period. DISCUSSION: The findings confirm an increased risk of fatal drowning during heatwaves. With increased likelihood and severity of heatwaves, this information should be used to inform drowning prevention, in particular the timing of public awareness campaigns and patrolling of supervised aquatic locations. CONCLUSIONS: Water safety and patrolling organisations, as well as first responders, need to prepare for more drowning deaths during heatwave conditions. In addition, drowning prevention education ahead of heatwaves is needed for recreational swimmers, and older people, particularly those with comorbidities which may be further exacerbated by a heatwave.

A Summary of Fatal Injury Surveillance Methods in Australian Agriculture and Their Impact on Safety Policies and Practices.

Agriculture is one of the most important and also hazardous industries in Australia. Having a sound knowledge and understanding of the circumstance of injury events is critical to developing evidence-based intervention programs. This paper aims to provide a brief historical snapshot of the development of data systems underpinning the assessment of fatal farm injury in Australia and how it has impacted on safety policy and practice. The first Australian studies used coronial information to explore agricultural fatalities, these studies reviewed paper-based records (in-situ) and collected the information for analysis and reporting. This task was laborious and costly. When the National Coronial Information System (NCIS) was established in 2000, this allowed access to coronial records online. Information provided about the deceased includes demographics, contextual details on the nature of the fatality and autopsy, toxicology, and police reports, as-well-as the coroner's finding. Information from the NCIS, along with media reports, have been used to develop the farm fatality database. This information has been used to inform the safety goals and targets for farm commodity groups, identify key risks, provide long-term benchmark indicators and underpin the development of prevention materials and training resources. Without accurate, timely, concise and relevant data about injury occurring on farms, there is no evidence to drive policy and practice or to evaluate programs of work. As such, the continued utilization and extension of the NCIS data will prove crucial to further reducing the burden of preventable fatal injuries on Australian farms.

Causes of death among international travellers in Peru, 2017 to 2021.

BACKGROUND: The wellbeing and safety of international tourists is a paramount concern for governments and stakeholders. Mortality among travellers and the causes of death serve as a significant metric of destination safety. We describe the epidemiology and causes of death among international travellers in Peru. METHODS: Data retrieved from the Peruvian government's deaths certificates registry included all non-residents who died between January 2017 and December 2021. We analysed the national incidence and causes of death among international travellers in Peru. Causes of death were classified into non-communicable diseases (NCD), communicable diseases and injuries. We classified fatalities according to the existence of preventive measures that could be provided during the travel medicine consultation to decrease the risk. RESULTS: We obtained records from 1514 deaths among international travellers (973 males, 64%). The incidence increased from 0.2 deaths per 10 000 travellers in 2017 to 9.9 in 2021. NCDs were the most common causes of death (n = 560, 37%), followed by communicable diseases (n = 487, 32%), and injuries (n = 321, 21%). Causes of death were unknown in 9.7% of the records. The leading causes of death in these categories were cancer, cardiovascular disease, COVID-19 and trauma. We found similar sex distribution of NCDs in travellers aged >50 years and higher rates of communicable diseases among males across all ages. Injury-associated deaths were significantly higher among males aged 18-29 years (P < 0.001) compared with other sex-age groups. We estimated that for 57.7% of deaths risk could have been decreased through pre-travel advice. CONCLUSION: Rates of deaths among travellers to Peru increased over time. Most deaths were due to NCDs, followed by communicable diseases and injuries. Pre-travel medical optimization and effective advice focused on age-sex and destination specific risks could reduce risk among travellers. Increased awareness among travel medicine practitioners and improvement of emergency medical response systems in Peru could decrease mortality.

Fatal drowning in Indonesia: understanding knowledge gaps through a scoping review.

Little is known about unintentional drowning deaths in Indonesia, the world's fourth most populous and largest archipelagic country. This study aimed to describe the epidemiology and risk factors of unintentional drowning in Indonesia and explore existing health promotion and drowning prevention approaches in Indonesia within a socio-ecological health promotion framework. A scoping review, guided by PRISMA-ScR, was conducted to locate peer-reviewed studies and government reports/policy documents published until May 2023, in English or Indonesian language, using MEDLINE (Ovid), CINAHL, Informit, PsycINFO (ProQuest), Scopus, SafetyLit, BioMed Central and Google Scholar, Indonesian journal databases (Sinta, Garuda) and government agencies websites around the terms: drown, swim, flood, hurricane, cyclone, disaster, water rescue and maritime/boat safety. This review identified 32 papers. However, a paucity of information on unintentional drowning rates, risk factors and prevention in Indonesia was noted. The unavailability of a coordinated national drowning data collection system in Indonesia, from which national and subnational subcategory data can be collected, underlines the possibility of under-representation of drowning mortality. The association between various exposures and drowning incidents has not been fully investigated. An over-reliance on individual-focused, behaviour-based, preventive measures was observed. These findings highlight the need for improving drowning surveillance to ensure the availability and reliability of drowning data; and strengthening research to understand the risk factors for drowning and delivery of drowning prevention programs. Further policy development and research focusing on health promotion approaches that reflect a socio-ecological approach to drowning prevention in Indonesia is imperative.

Feasibility study of the Utstein Style For Drowning to aid data collection on the resuscitation of drowning victims.

Aim: The revised Utstein Style For Drowning (USFD) was published in 2015. Core data were considered feasible to be reported in most health systems worldwide. We aimed to determine the suitability of the USFD as a template for reporting data from drowning research. Method: Clinical records of 437 consecutive drowning presentations to the Sunshine Coast Hospital and Health Service Emergency Departments (ED) between 1/1/2015 and 31/12/2021 were examined for data availability to complete the USFD. The proportions of patients with each variable documented is reported. Time taken to record core and supplementary variables was recorded for 120 consecutive patients with severity of drowning Grade 1 or higher. Results: There were 437 patients, including 227 (51.9%) aged less than 16 years. There were 253 (57.9%) males and 184 (42.1%) females. Sixty-one patients (13.9%) received cardiopulmonary resuscitation (CPR). There were nine (2.1%) deaths after presentation to the ED. Median time for data entry was 17 minutes for core variables and 6 min for supplementary. This increased to 29 + 6 minutes for patients in cardiac arrest. Sixteen (32.7%) of 49 core variables and four (13.3%) of 30 supplementary variables were documented 100% of the time. One (2.0%) core and seven (23.3%) supplementary variables were never documented. Duration of submersion was documented in 100 (22.9%) patients. Conclusion: USFD is time consuming to complete. Data availability to enable completion of the USFD varies widely, even in a resource rich health system. These results should be considered in future revisions of the USFD.

Lessons learned through the 20-year development of a national fatal drowning database in Australia.

BACKGROUND: Co-ordinated, evidence-based policy and programmatic efforts are needed to respond to complex drowning prevention problems. Comprehensive, current, and robust data are vital for agenda setting, burden and risk factor identification, intervention design and evaluation, as well as setting policy. We aim to record methods used in, and identify impacts of, the development of a national fatal drowning database (NFDD) in Australia, including lessons learned across research, policy, and practice. METHODS: We employ a case study method using process mapping and document review to explore the evolution, drivers and impacts of the NFDD. We analyse methodological approaches including those relating to data definitions, drowning case collection, and management, as well as tracking the various outputs of the NFDD. We describe a development timeline that presents impact of drowning prevention policy, and research agendas on database development, and research investments more specifically. RESULTS: Our study identified that the collected variables grew 20-fold from 2002 to 2022, reaching 259 variables, and 5,692 unique cases of fatal drowning. The NFDD employs data triangulation methodology, combining keyword and targeted searches of coronial files, media report monitoring, and organisational data provision. Database development is influenced by the Australia Water Safety Strategy, policymaker and practitioner-initiated research agendas, and identification of knowledge gaps. We identified numerous outputs spanning publications, media, intervention development, and legislative submissions. CONCLUSION: A comprehensive and robust NFDD informed by policymaker and practitioner input can enhance surveillance, policy, and intervention development for drowning prevention. Employing mixed data collection and validation methods can supplement weaknesses in official data sources. There is a need for the NFDD to continue to evolve in its application while maintaining rigorous case identification and data quality assurance processes. Despite significant investment, the outputs and influence on drowning prevention practice in Australia has been extremely valuable and contributed to sizeable reductions in Australia's fatal drowning rate.

The characteristics of drowning among different types of international visitors to Australia and how this contributes to their drowning risk.

OBJECTIVE: Australia is a popular destination for international visitors. This study reviews international visitor drowning deaths in Australia and analyses drowning by visitor type. METHODS: A total population retrospective study exploring drowning deaths of international visitors was conducted between 2008 and 2018. Data were extracted from the Royal Life Saving National Fatal Drowning Database and categorised into four subgroups: overseas tourists, international students, working holiday makers and work-related visitors. Descriptive statistics, non-parametric tests and relative risk (RR) were calculated. RESULTS: In total, 201 international visitors drowned in Australia, 7% of all drowning deaths; a crude drowning rate of 0.27/100,000 visitors versus 0.95/100,000 for residents (RR=0.19 [95% CI: 0.16-0.22]). Most deaths were males (79%) and people aged 18-34 years (50%). Visitors frequently drowned at beaches (33%), and when swimming (41%). Thirty-five percent recorded a pre-existing medical condition. Overseas tourists on holiday were the most likely to drown compared to other subgroups. CONCLUSION: International visitors represent a small but increasing proportion of people drowning in Australia. The circumstances of which visitors drown vary by travel purpose, age, country of origin, location of drowning and activity. IMPLICATIONS FOR PUBLIC HEALTH: International visitors have unique safety needs, requiring tailored prevention based on the purpose of travel and country of origin.

The impact of rurality on child road traffic death in high-income countries.

INTRODUCTION: Despite the importance of child road traffic death, a limited number of studies have investigated rural child road traffic death in high income countries. OBJECTIVE: This review estimated the impact of rurality on child road traffic deaths and other potential risk factors in high-income countries. DESIGN: We searched Ovid, MEDLINE, CINAHL, PsycINFO and Scopus databases and extracted studies focusing on the association between rurality and child road traffic death published between 2001 and 2021. Available data were extracted and analysed, to evaluate the impact of rurality on child road traffic death and explore other risk factors of child road traffic deaths. FINDINGS: We identified 13 studies for child road traffic death between 2001 and 2021. Eight studies reported the impact of rurality on child road traffic death, and all of them alleged that the mortality rate and injury rate of children was significantly higher on rural road than on urban road. The impact of rurality varied between studies, from 1.6 times to 15 times higher incidence of road traffic death in rural areas. Vehicle type, speeding cars, driver loss of control, alcohol and drug use road environment were identified as risk factors of child road traffic death. Conversely, ethnicity, seat belts, nondeployed airbag, child restraint, strict driver licence system, camera law and accessibility of trauma centres were considered protective factors. Other factors, including age, gender and teen passengers, appeared ambiguous for child road traffic death. DISCUSSION: Rurality is one of the most important risk factors of child road traffic death. Therefore, we should consider the impact that rurality has on child road death and resolve the gap between rural and urban areas in order to prevent child road traffic death effectively. CONCLUSION: The findings of this literature review will assist policy-makers to prevent child road traffic death by focusing on rural regions.

Determining the Impact of Heatwaves on Emergency Ambulance Calls in Queensland: A Retrospective Population-Based Study.

Heatwaves are a significant and growing threat to the health and well-being of the residents of Queensland, Australia. This threat is increasing due to climate change. Excess heat increases the demand for health services, including ambulance calls, and the purpose of this study was to explore this impact across Queensland. A state-wide retrospective analysis of heatwaves and emergency 'Triple Zero' (000) calls to Queensland Ambulance (QAS) from 2010-2019 was undertaken. Call data from the QAS and heatwave data from the Bureau of Meteorology were analysed using a case-crossover approach at the postcode level. Ambulance calls increased by 12.68% during heatwaves. The effect was greatest during low-severity heatwaves (22.16%), followed by severe (14.32%) and extreme heatwaves (1.16%). The impact varied by rurality, with those living in very remote areas and major cities most impacted, along with those of low and middle socioeconomic status during low and severe intensity heat events. Lag effects post-heatwave continued for at least 10 days. Heatwaves significantly increase ambulance call centre workload, so ambulance services must actively prepare resources and personnel to address increases in heatwave frequency, duration, and severity. Communities must be informed of the risks of heatwaves at all severities, particularly low severity, and the sustained risks in the days following a heat event.

Heatwaves and mortality in Queensland 2010-2019: implications for a homogenous state-wide approach.

Heatwaves are a significant cause of adverse health outcomes and mortality in Australia, worsening with climate change. In Queensland, the northeastern-most state, little is known about the impact of heatwaves outside of the capital city of Brisbane. This study aims to explore the impact of heatwaves on mortality across various demographic and environmental conditions within Queensland from 2010 to 2019. The Excess Heat Factor was used to indicate heatwave periods at the Statistical Area 2 (SA2) level. Registered deaths data from the Australian Bureau of Statistics and heatwave data from the Bureau of Meteorology were matched using a case-crossover approach. Relative risk and 95% confidence intervals were calculated across years, regions, age, sex, rurality, socioeconomic status, and cause of death. Heatwaves were associated with a 5% increase in all-cause mortality compared to deaths on non-heatwave days, with variability across the state. The risk of death on a heatwave day versus a non-heatwave day varied by heatwave severity. Individuals living in urban centers, the elderly, and those living in regions of lower socioeconomic status were most impacted by heatwave mortality. The relative risk of dying from neoplasms, nervous system conditions, respiratory conditions, and mental and behavioral conditions increased during heatwaves. As heatwaves increase in Queensland due to climate change, understanding the impact of heatwaves on mortality across Queensland is important to tailor public health messages. There is considerable variability across communities, demographic groups, and medical conditions, and as such messages need to be tailored to risk.

Addressing gaps in our understanding of the drowning patient: a protocol for the retrospective development of an Utstein style database and multicentre collaboration.

INTRODUCTION: This retrospective observational study aims to create a comprehensive database of the circumstances of drowning (including care provided and outcomes of care) to report against the Utstein style for drowning (USFD) for patients presenting to the emergency department (ED). Four areas will be examined: a feasibility study of the USFD; a comparison of classification and prognostication systems; examination of indications and efficacy of different ventilation strategies; and differences in the circumstances, severity, treatment and outcomes of drowning by sex and gender. METHODS AND ANALYSIS: This protocol outlines retrospective data collection for all patients presenting to EDs of the Sunshine Coast Hospital and Health Service in Queensland, Australia with the presenting problem or discharge diagnosis of drowning or immersion between 2015 and 2022. Patients computerised health records (emergency medical service record, pathology, radiology results, medical and nursing notes for ED, inpatient units and intensive care units) will be used to extract data for entry into an USFD database. Descriptive (eg, median, IQR) and inferential statistical analyses (eg, analysis of variance) will be used to answer the separate research questions. Development of an International Drowning Registry using the USFD dataset and the Research Electronic Data Capture (REDCap) web application is discussed. ETHICS AND DISSEMINATION: This study has been approved by Metro North Human Research and Ethics Committee (Project No: 49754) and James Cook University Human Research Ethics Committee (H8014). It has been endorsed by national drowning prevention organisations Royal Life Saving Society Australia (RLSSA) and Surf Life Saving Australia (SLSA). Study findings will provide data to better inform clinical management of drowning patients and provide an evidence base on sex and gender differences in drowning. Results will be disseminated through peer review publications, conference presentations and media releases. Results will also be disseminated through RLSSA and SLSA membership of the Australian and New Zealand Resuscitation Council and the Australian Water Safety Council.

Understanding the confluence of injury and obesity in a Grade 2 obesity and above population.

OBJECTIVE: Obesity and injury are major inter-related public health challenges. The objective of this study was to explore the perceptions of injury in people with severe obesity. METHODS: A cross-sectional design was employed to capture injury perception and lifestyle habits via questionnaires. Weight (kg) and height (m) were measured by clinicians for patients attending a weight loss group program. Univariate, chi-square, ANOVA and ordinal regression analyses were undertaken. RESULTS: There were 292 participants (67.1% female), mean age 49.3 years and Body Mass Index 47.2 kg/m2 (range 30.7-91.9 kg/m2). Concern about having an injury was found in 83%, and 74.2% thought that weight would increase the likelihood of injury. A greater concern of being injured at baseline was associated with less weight loss at eight weeks (F=3.567; p=0.03). Depression, anxiety and sleepiness score were higher in those who reported greater 'Concern about having an injury'. CONCLUSIONS: People with obesity fear injury and falling, which limits their willingness to exercise. Anxiety symptoms appear to exacerbate this connection. IMPLICATIONS FOR PUBLIC HEALTH: In individuals with obesity, anxiety, sleepiness and depression are associated with a fear of being injured. Addressing fear and reducing anxiety may decrease barriers to participating in physical activity.

Requesting air ambulance transport of patients with suspected appendicitis: The decision-making process through the eyes of the rural clinician.

OBJECTIVE: The primary aim is to explore rural clinicians' self-reported knowledge, skills and attitudes in the decision-making process for requesting aeromedical retrieval of patients with suspected appendicitis. A secondary aim is to understand the supports and barriers of rural clinicians experience in this clinical scenario. SETTING: Clinician interviews conducted face-to-face in three rural hospitals in Central Queensland. PARTICIPANTS: Rural doctors and nurses. DESIGN: A five-part qualitative content analysis. RESULTS: The majority of 44 participants identified the strong and effective teamwork. The decision to request aeromedical retrieval was a shared, joint process and identified a supportive collegial culture which supported the asking of questions and not expecting to have all the answers. Perceived barriers were lack of receiving clinicians understanding of transfer agreements, and data connectivity. Clinician pessimism was identified for perceived patient outcomes. DISCUSSION: Effective teamwork can nurture trust and collaboration across multiple health service roles. High job satisfaction may counter the physical isolation in some rural environments. Fragmentation of care is the unintended consequence of interhospital transfer and may impact rural clinicians' perception of patients' outcomes and hinder receiving clinicians' understanding of rural service limitations. CONCLUSION: Future work in the area of linked electronic medical records could remove a barrier for rural clinicians and improve their reflective practice by challenging their perception of definitive patient outcomes. Increased awareness by receiving clinicians of the limitation of rural services, may minimize communication barriers and thereby, improve timely patient care transfers.

Pre-hospital predictors of long-term survival from out-of-hospital cardiac arrest.

OBJECTIVE: To identify predictors of longer-term outcomes from adult out-of-hospital cardiac arrest of presumed cardiac aetiology. METHODS: In this retrospective cohort study, three large routinely collected databases were linked: 1)QAS Out-of-Hospital Cardiac (OHCA) Registry; 2)Queensland Hospital Admitted Patient Data Collection; and 3)Queensland Registrar General Death Registry. Participants were adult (18years+) residents of Queensland, who suffered an OHCA of presumed cardiac aetiology and had resuscitation attempted by QAS paramedics between 2002 and 2014. Four mutually exclusive outcomes were analysed: 1) No pre-hospital return of spontaneous circulation (ROSC) sustained to the Emergency Department (ED) or ROSC in ED; 2) Survival< 30 days (Pre-hospital ROSC sustained to ED or ROSC in ED but death within 30 days; 3) survival between 30 and 364 days; and 4) survival to 365 + days. Multinomial logistic regression was used to calculate odds ratios and 95 % confidence intervals. RESULTS: Variables significantly predictive of survival to 365 + days after adjusting for all measured confounders are: an initial shockable rhythm; bystander witnessed events with bystander CPR; paramedic witnessed events; intubation placement; time of day (midday-2.59 pm); and attendance by Critical Care Paramedic (CCP). CONCLUSION: From a service provision perspective, attendance of a CCP at an OHCA may be an important factor to achieve preferred long-term outcomes. Enhanced experience, exposure and expertise, together with extended clinical practice, may explain this finding.