Group-based trajectories of potentially preventable hospitalisations among older adults after a hip fracture.

Key predictors of three trajectory group membership of potentially preventable hospitalisations were age, the number of comorbidities, the presence of chronic obstructive pulmonary disease and congestive heart failure, and frailty risk at the occurrence of hip fracture. These predictors of their trajectory group could be used in targeting prevention strategies. PURPOSE: Although older adults with hip fracture have a higher risk of multiple readmissions after index hospitalisation, little is known about potentially preventable hospitalisations (PPH) after discharge. This study examined group-based trajectories of PPH during a five-year period after a hip fracture among older adults and identified factors predictive of their trajectory group membership. METHODS: This retrospective cohort study was conducted using linked hospitalisation and mortality data in New South Wales, Australia, between 2013 and 2021. Patients aged ≥ 65 years who were admitted after a hip fracture and discharged between 2014 and 2016 were identified. Group-based trajectory models were derived based on the number of subsequent PPH following the index hospitalisation. Multinominal logistic regression examined factors predictive of trajectory group membership. RESULTS: Three PPH trajectory groups were revealed among 17,591 patients: no PPH (89.5%), low PPH (10.0%), and high PPH (0.4%). Key predictors of PPH trajectory group membership were age, number of comorbidities, dementia, chronic obstructive pulmonary disease (COPD), congestive heart failure (CHF), frailty risk, place of incident, surgery, rehabilitation, and length of hospital stay. The high PPH had a higher proportion of patients with ≥ 2 comorbidities (OR: 1.86, 95% confidence interval (CI): 1.04-3.32) and COPD (OR: 2.97, 95%CIs: 1.76-5.04) than the low PPH, and the low and high PPHs were more likely to have CHF and high frailty risk as well as ≥ 2 comorbidities and COPD than the no PPH. CONCLUSIONS: Identifying trajectories of PPH after a hip fracture and factors predictive of trajectory group membership could be used to target strategies to reduce multiple readmissions.

Potentially burdensome care at the end-of-life for cancer decedents: a retrospective population-wide study.

BACKGROUND: Variation persists in the quality of end-of-life-care (EOLC) for people with cancer. This study aims to describe the characteristics of, and examine factors associated with, indicators of potentially burdensome care provided in hospital, and use of hospital services in the last 12 months of life for people who had a death from cancer. METHOD: A population-based retrospective cohort study of people aged ≥ 20 years who died with a cancer-related cause of death during 2014-2019 in New South Wales, Australia using linked hospital, cancer registry and mortality records. Ten indicators of potentially burdensome care were examined. Multinominal logistic regression examined predictors of a composite measure of potentially burdensome care, consisting of > 1 ED presentation or > 1 hospital admission or ≥ 1 ICU admission within 30 days of death, or died in acute care. RESULTS: Of the 80,005 cancer-related deaths, 86.9% were hospitalised in the 12 months prior to death. Fifteen percent had > 1 ED presentation, 9.9% had > 1 hospital admission, 8.6% spent ≥ 14 days in hospital, 3.6% had ≥ 1 intensive care unit admission, and 1.2% received mechanical ventilation on ≥ 1 occasion in the last 30 days of life. Seventeen percent died in acute care. The potentially burdensome care composite measure identified 20.0% had 1 indicator, and 10.9% had ≥ 2 indicators of potentially burdensome care. Compared to having no indicators of potentially burdensome care, people who smoked, lived in rural areas, were most socially economically disadvantaged, and had their last admission in a private hospital were more likely to experience potentially burdensome care. Older people (≥ 55 years), females, people with 1 or ≥ 2 Charlson comorbidities, people with neurological cancers, and people who died in 2018-2019 were less likely to experience potentially burdensome care. Compared to people with head and neck cancer, people with all cancer types (except breast and neurological) were more likely to experience ≥ 2 indicators of potentially burdensome care versus none. CONCLUSION: This study shows the challenge of delivering health services at end-of-life. Opportunities to address potentially burdensome EOLC could involve taking a person-centric approach to integrate oncology and palliative care around individual needs and preferences.

Cochlear implantation impact on health service utilisation and social outcomes: a systematic review.

BACKGROUND: Hearing loss can have a negative impact on individuals' health and engagement with social activities. Integrated approaches that tackle barriers and social outcomes could mitigate some of these effects for cochlear implants (CI) users. This review aims to synthesise the evidence of the impact of a CI on adults' health service utilisation and social outcomes. METHODS: Five databases (MEDLINE, Scopus, ERIC, CINAHL and PsychINFO) were searched from 1st January 2000 to 16 January 2023 and May 2023. Articles that reported on health service utilisation or social outcomes post-CI in adults aged ≥ 18 years were included. Health service utilisation includes hospital admissions, emergency department (ED) presentations, general practitioner (GP) visits, CI revision surgery and pharmaceutical use. Social outcomes include education, autonomy, social participation, training, disability, social housing, social welfare benefits, occupation, employment, income level, anxiety, depression, quality of life (QoL), communication and cognition. Searched articles were screened in two stages ̶̶̶ by going through the title and abstract then full text. Information extracted from the included studies was narratively synthesised. RESULTS: There were 44 studies included in this review, with 20 (45.5%) cohort studies, 18 (40.9%) cross-sectional and six (13.6%) qualitative studies. Nine studies (20.5%) reported on health service utilisation and 35 (79.5%) on social outcomes. Five out of nine studies showed benefits of CI in improving adults' health service utilisation including reduced use of prescription medication, reduced number of surgical and audiological visits. Most of the studies 27 (77.1%) revealed improvements for at least one social outcome, such as work or employment 18 (85.7%), social participation 14 (93.3%), autonomy 8 (88.9%), education (all nine studies), perceived hearing disability (five out of six studies) and income (all three studies) post-CI. None of the included studies had a low risk of bias. CONCLUSIONS: This review identified beneficial impacts of CI in improving adults' health service utilisation and social outcomes. Improvement in hearing enhanced social interactions and working lives. There is a need for large scale, well-designed epidemiological studies examining health and social outcomes post-CI.

The impact of childhood asthma on academic performance: A matched population-based cohort study.

BACKGROUND: There is inconclusive evidence of the effect of asthma on the academic performance of young people. This study aims to compare scholastic performance and high school completion of young people hospitalized with asthma compared to matched peers not hospitalized with asthma. METHOD: A population-based matched case-comparison cohort study of young people aged ≤18 years hospitalized for asthma during 2005-2018 in New South Wales, Australia using linked birth, health, education and mortality records. The comparison cohort was matched on age, gender and residential postcode. Generalized linear mixed-modelling examined risk of school performance below the national minimum standard (NMS) and generalized linear regression examined risk of not completing high school for young people hospitalized with asthma compared to matched peers. RESULTS: Young males hospitalized with asthma had a 13% and 15% higher risk of not achieving the NMS for numeracy (95%CI 1.04-1.22) and reading (95%CI 1.07-1.23), respectively, compared to peers. Young males hospitalized with asthma had a 51% (95%CI 1.22-1.86) higher risk of not completing year 10, and around a 20% higher risk of not completing year 11 (ARR: 1.25; 95%CI 1.15-1.36) or year 12 (ARR: 1.27; 95%CI 1.17-1.39) compared to peers. Young females hospitalized with asthma showed no difference in achieving numeracy or reading NMSs, but did have a 21% higher risk of not completing year 11 (95%CI 1.09-1.36) and a 33% higher risk of not completing year 12 (95%CI 1.19-1.49) compared to peers. CONCLUSIONS: Educational attainment is worse for young people hospitalized with asthma compared to matched peers. Early intervention and strategies for better management of asthma symptoms may enhance academic performance for students.

Synthesis of evidence on the use of ecological momentary assessments to monitor health outcomes after traumatic injury: rapid systematic review.

BACKGROUND: With the increasing use of mobile technology, ecological momentary assessments (EMAs) may enable routine monitoring of patient health outcomes and patient experiences of care by health agencies. This rapid review aims to synthesise the evidence on the use of EMAs to monitor health outcomes after traumatic unintentional injury. METHOD: A rapid systematic review of nine databases (MEDLINE, Web of Science, Embase, CINAHL, Academic Search Premier, PsychINFO, Psychology and Behavioural Sciences Collection, Scopus, SportDiscus) for English-language articles from January 2010-September 2021 was conducted. Abstracts and full-text were screened by two reviewers and each article critically appraised. Key information was extracted by population characteristics, age and sample size, follow-up time period(s), type of EMA tools, physical health or pain outcome(s), psychological health outcome(s), general health or social outcome(s), and facilitators or barriers of EMA methods. Narrative synthesis was undertaken to identify key EMA facilitator and barrier themes. RESULTS: There were 29 articles using data from 25 unique studies. Almost all (84.0%) were prospective cohort studies and 11 (44.0%) were EMA feasibility trials with an injured cohort. Traumatic and acquired brain injuries and concussion (64.0%) were the most common injuries examined. The most common EMA type was interval (40.0%). There were 10 key facilitator themes (e.g. feasibility, ecological validity, compliance) and 10 key barrier themes (e.g. complex technology, response consistency, ability to capture a participant's full experience, compliance decline) identified in studies using EMA to examine health outcomes post-injury. CONCLUSIONS: This review highlighted the usefulness of EMA to capture ecologically valid participant responses of their experiences post-injury. EMAs have the potential to assist in routine follow-up of the health outcomes of patients post-injury and their use should be further explored.

The impact of type 1 diabetes mellitus in childhood on academic performance: A matched population-based cohort study.

BACKGROUND AND OBJECTIVE: The impact of type 1 diabetes mellitus (T1D) on academic performance is inconclusive. This study aims to compare scholastic performance and high-school completion in young people hospitalized with T1D compared to matched peers not hospitalized with diabetes. RESEARCH DESIGN: Retrospective case-comparison cohort study. METHOD: A population-level matched case-comparison study of people aged ≤18 hospitalized with T1D during 2005-2018 in New South Wales, Australia using linked health-related and education records. The comparison cohort was matched on age, gender, and residential postcode. Generalized linear mixed modeling examined risk of school performance below the national minimum standard (NMS) and generalized linear regression examined risk of not completing high school for young people hospitalized with T1D compared to peers. Adjusted relative risks (ARR) were calculated. RESULTS: Young females and males hospitalized with T1D did not have a higher risk of not achieving the NMS compared to peers for numeracy (ARR: 1.19; 95%CI 0.77-1.84 and ARR: 0.74; 95%CI 0.46-1.19) or reading (ARR: 0.98; 95%CI 0.63-1.50 and ARR: 0.85; 95%CI 0.58-1.24), respectively. Young T1D hospitalized females had a higher risk of not completing year 11 (ARR: 1.73; 95%CI 1.19-2.53) or 12 (ARR: 1.65; 95%CI 1.17-2.33) compared to peers, while hospitalized T1D males did not. CONCLUSIONS: There was no difference in academic performance in youth hospitalized with T1D compared to peers. Improved glucose control and T1D management may explain the absence of school performance decrements in students with T1D. However, females hospitalized with T1D had a higher risk of not completing high school. Potential associations of this increased risk, with attention to T1D and psycho-social management, should be investigated.

Mental disorders and their impact on school performance and high school completion by gender in Australia: A matched population-based cohort study.

BACKGROUND: Young people with a mental disorder often perform poorly at school and can fail to complete high school. This study aims to compare scholastic performance and high school completion of young people hospitalised with a mental disorder compared to young people not hospitalised for a mental disorder health condition by gender. METHOD: A population-based matched case-comparison cohort study of young people aged ⩽18 years hospitalised for a mental disorder during 2005-2018 in New South Wales, Australia using linked birth, health, education and mortality records. The comparison cohort was matched on age, gender and residential postcode. Generalised linear mixed modelling examined risk of school performance below the national minimum standard and generalised linear regression examined risk of not completing high school for young people with a mental disorder compared to matched peers. RESULTS: Young males with a mental disorder had over a 1.7 times higher risk of not achieving the national minimum standard for numeracy (adjusted relative risk: 1.71; 95% confidence interval: [1.35, 2.15]) and reading (adjusted relative risk: 1.99; 95% confidence interval: [1.80, 2.20]) compared to matched peers. Young females with a mental disorder had around 1.5 times higher risk of not achieving the national minimum standard for numeracy (adjusted relative risk: 1.50; 95% confidence interval: [1.14, 1.96]) compared to matched peers. Both young males and females with a disorder had around a three times higher risk of not completing high school compared to peers. Young males with multiple disorders had up to a sixfold increased risk and young females with multiple disorders had up to an eightfold increased risk of not completing high school compared to peers. CONCLUSION: Early recognition and support could improve school performance and educational outcomes for young people who were hospitalised with a mental disorder. This support should be provided in conjunction with access to mental health services and school involvement and assistance.

Hospital service use for young people with chronic health conditions: A population-based matched retrospective cohort study.

AIM: This study aims to identify the hospitalised morbidity associated with three common chronic health conditions among young people using a population-based matched cohort. METHODS: A population-level matched case-comparison retrospective cohort study of young people aged ≤18 years hospitalised with asthma, type 1 diabetes (T1D) or epilepsy during 2005-2018 in New South Wales, Australia using linked birth, health and mortality records. The comparison cohort was matched on age, sex and residential postcode. Adjusted rate ratios (ARR) were calculated by sex and age group. RESULTS: There were 65 055 young people hospitalised with asthma, 6648 with epilepsy, and 2209 with T1D. Young people with epilepsy (ARR 10.95; 95% confidence interval (CI) 9.98-12.02), T1D (ARR 8.64; 95% CI 7.72-9.67) or asthma (ARR 4.39; 95% CI 4.26-4.53) all had a higher risk of hospitalisation than matched peers. Admission risk was highest for males (ARR 11.00; 95% CI 9.64-12.56) and females with epilepsy (ARR 10.83; 95% CI 9.54-12.29) compared to peers. The highest admission risk by age group was for young people aged 10-14 years (ARR 5.50; 95% CI 4.77-6.34) living with asthma, children aged ≤4 years (ARR 12.68; 95% CI 11.35-14.17) for those living with epilepsy, and children aged 5-9 years (ARR 9.12; 95% CI 7.69-10.81) for those living with T1D compared to peers. CONCLUSIONS: The results will guide health service planning and highlight opportunities for better management of chronic health conditions, such as further care integration between acute, primary and community health services for young people.

Health service use for young males and females with a mental disorder is higher than their peers in a population-level matched cohort.

BACKGROUND: To inform healthcare planning and resourcing, population-level information is required on the use of health services among young people with a mental disorder. This study aims to identify the health service use associated with mental disorders among young people using a population-level matched cohort. METHOD: A population-based matched case-comparison retrospective cohort study of young people aged ≤ 18 years hospitalised for a mental disorder during 2005-2018 in New South Wales, Australia was conducted using linked birth, health, and mortality records. The comparison cohort was matched on age, sex and residential postcode. Adjusted rate ratios (ARR) were calculated for key demographics and mental disorder type by sex. RESULTS: Emergency department visits, hospital admissions and ambulatory mental health service contacts were all higher for males and females with a mental disorder than matched peers. Further hospitalisation risk was over 10-fold higher for males with psychotic (ARR 13.69; 95%CI 8.95-20.94) and anxiety (ARR 11.44; 95%CI 8.70-15.04) disorders, and for both males and females with cognitive and behavioural delays (ARR 10.79; 95%CI 9.30-12.53 and ARR 14.62; 95%CI 11.20-19.08, respectively), intellectual disability (ARR 10.47; 95%CI 8.04-13.64 and ARR 11.35; 95%CI 7.83-16.45, respectively), and mood disorders (ARR 10.23; 95%CI 8.17-12.80 and ARR 10.12; 95%CI 8.58-11.93, respectively) compared to peers. CONCLUSION: The high healthcare utilisation of young people with mental disorder supports the need for the development of community and hospital-based services that both prevent unnecessary hospital admissions in childhood and adolescence that can potentially reduce the burden and loss arising from mental disorders in adult life.

The impact of childhood injury and injury severity on school performance and high school completion in Australia: a matched population-based retrospective cohort study.

BACKGROUND: Exploring the impact of injury and injury severity on academic outcomes could assist to identify characteristics of young people likely to require learning support services. This study aims to compare scholastic performance and high school completion of young people hospitalised for an injury compared to young people not hospitalised for an injury by injury severity; and to examine factors influencing scholastic performance and school completion. METHOD: A population-based matched case-comparison cohort study of young people aged ≤18 years hospitalised for an injury during 2005-2018 in New South Wales, Australia using linked birth, health, education and mortality records. The comparison cohort was matched on age, gender and residential postcode. Generalised linear mixed modelling examined risk of performance below the national minimum standard (NMS) on the National Assessment Plan for Literacy and Numeracy (NAPLAN) and generalised linear regression examined risk of not completing high school for injured young people compared to matched peers. RESULTS: Injured young people had a higher risk of not achieving the NMS compared to their matched peers for numeracy (ARR: 1.12; 95%CI 1.06-1.17), reading (ARR: 1.09; 95%CI 1.04-1.13), spelling (ARR: 1.13; 95%CI 1.09-1.18), grammar (ARR: 1.11; 95%CI 1.06-1.15), and writing (ARR: 1.07; 95%CI 1.04-1.11). As injury severity increased from minor to serious, the risk of not achieving the NMS generally increased for injured young people compared to matched peers. Injured young people had almost twice the risk of not completing high school at year 10 (ARR: 2.17; 95%CI 1.73-2.72), year 11 (ARR: 1.95; 95%CI 1.78-2.14) or year 12 (ARR: 1.93; 95%CI 1.78-2.08) compared to matched peers. CONCLUSIONS: The identification of characteristics of young people most likely to encounter problems in the academic environment after sustaining an injury is important to facilitate the potential need for learning support. Assessing learning needs and monitoring return-to-school progress post-injury may aid identification of any ongoing learning support requirements.

Injury incidence, severity and profile in Olympic combat sports: a comparative analysis of 7712 athlete exposures from three consecutive Olympic Games.

OBJECTIVES: To describe and compare the epidemiology of competition injuries in unarmed combat sports (ie, boxing, judo, taekwondo and wrestling) in three consecutive Olympic Games. METHODS: Prospective cohort study using injury data from the IOC injury surveillance system and exposure data from official tournament records at three consecutive Olympic Games (ie, Beijing 2008, London 2012 and Rio de Janeiro 2016). Competition injury incidence rates per 1000 min of exposure (IIRME) were calculated with 95% CIs using standard formulae for Poisson rates. RESULTS: The overall IIRME was 7.8 (95% CI 7.0 to 8.7). The IIRME in judo (9.6 (95% CI 7.8 to 11.7)), boxing (9.2 (95% CI 7.6 to 10.9)) and taekwondo (7.7 (95% CI 5.6 to 10.5)) were significantly higher than in wrestling (4.8 (95% CI 3.6 to 6.2)). The proportion of injuries resulting in >7 days absence from competition or training was higher in wrestling (39.6%), judo (35.9%) and taekwondo (32.5%) than in boxing (21.0%). There was no difference in injury risk by sex, weight category or tournament round, but athletes that lost had significantly higher IIRME compared with their winning opponents (rate ratio 3.59 (95% CI 2.68 to 4.79)). CONCLUSION: Olympic combat sport athletes sustained, on average, one injury every 2.1 hours of competition. The risk of injury was significantly higher in boxing, judo and taekwondo than in wrestling. About 30% of injuries sustained during competition resulted in >7 days absence from competition or training. There is a need for identifying modifiable risk factors for injury in Olympic combat sports, which in turn can be targeted by injury prevention initiatives to reduce the burden of injury among combat sport athletes.

Hospital service utilization trajectories of individuals living with epilepsy in New South Wales, Australia, 2012-2016: A population-based study.

OBJECTIVES: This study aimed to examine five-year trajectories of hospital service utilization among individuals living with epilepsy in New South Wales (NSW), Australia, and to identify factors predictive of trajectory group membership. METHODS: This study used group-based trajectory modeling of hospital admissions over a five-year period for individuals living with epilepsy who had an epilepsy-related hospitalization during 1 January 2012 and 31 December 2012 in NSW, Australia (n = 5762). RESULTS: The analysis revealed the following five distinct hospital service utilization trajectory groups: "one-off users" (Group 1; 22.9%), "low-chronic users" (Group 2; 47.1%), "moderate-declining users" (Group 3; 10.3%), "moderate-chronic users" (Group 4; 18.3%), and "high-chronic users" (Group 5; 1.5%). There were key features that defined trajectory group membership, in particular the relative proportions of group members with chronic health conditions, other comorbid conditions, refractory epilepsy, and status epilepticus. For instance, "high-chronic users" (Group 5) had higher proportions of individuals with chronic health conditions (34.8%) and refractory epilepsy (19.1%); "moderate-declining users" (Group 3) had higher proportions of individuals with chronic health conditions (35.1%) and status epilepticus (9.8%); and "low-chronic users" (Group 2) had the lowest proportion of individuals with chronic health conditions. CONCLUSION: It is important to gain a better understanding of hospital service utilization among individuals living with epilepsy. This research has identified trajectory groups of hospital service utilization profiles of individuals living with epilepsy. Identification of predictors of trajectory group membership allows targeting of strategies to reduce hospital admissions, inform healthcare service delivery, and improve the health and wellbeing of individuals living with epilepsy.

Epidemiology of injuries in Olympic-style karate competitions: systematic review and meta-analysis.

OBJECTIVE: To report the epidemiology of injuries in Olympic-style karate competitions. DESIGN: Systematic review and meta-analysis. Pooled estimates of injury incidence rates per 1000 athlete-exposures (IIRAE) and per 1000 min of exposure (IIRME) were obtained by fitting random-effects models. DATA SOURCES: MEDLINE, Embase, AMED, SPORTDiscus and AusportMed databases were searched from inception to 21 August 2019. ELIGIBILITY CRITERIA: Prospective cohort studies published in peer-reviewed journals and reporting injury data (ie, incidence, severity, location, type, mechanism or risk factors) among athletes participating in Olympic-style karate competition. RESULTS: Twenty-eight studies were included. The estimated IIRAE and IIRME were 88.3 (95%CI 66.6 to 117.2) and 39.2 (95%CI 30.6 to 50.2), respectively. The most commonly injured body region was the head and neck (median: 57.9%; range: 33.3% to 96.8%), while contusion (median: 68.3%; range: 54.9% to 95.1%) and laceration (median: 18.6%; range: 0.0% to 29.3%) were the most frequently reported types of injury. Despite inconsistency in classifying injury severity, included studies reported that most injuries were in the least severe category. There was no significant difference in IIRME between male and female karate athletes (rate ratio 1.09; 95%CI 0.88 to 1.36). CONCLUSION: Karate athletes sustain, on average, 1 injury every 11 exposures (bouts) or approximately 25 min of competition. The large majority of these injuries were minor or mild in severity.

Excess Mortality Among Adults Hospitalized With Traumatic Brain Injury in Australia: A Population-Based Matched Cohort Study.

OBJECTIVE: To quantify and describe excess mortality attributable to traumatic brain injury (TBI) during the 12 months after hospitalization. DESIGN: Population-based matched cohort study using linked hospital and mortality data. SETTING: Australia. PARTICIPANTS: Individuals 18 years and older who were hospitalized with a principal diagnosis of TBI in 2009 (n = 6929) and matched noninjured individuals randomly selected from the electoral roll (n = 6929). MAIN MEASURES: Survival distributions were compared using a Kaplan-Meier plot with a log-rank test. Mortality rate ratios (MRRs) were computed using Cox proportional hazard regression with and without controlling for demographic characteristics and preexisting health status. RESULTS: Individuals with TBI experienced significantly worse survival during the 12 months after hospitalization (χ = 640.9, df = 1, P < .001), and were more than 7.5 times more likely to die compared with their noninjured counterparts (adjusted MRR, 7.76; 95% confidence interval, 6.07-9.93). TBI was likely to be a contributory factor in 87% of deaths in the TBI cohort. Excess mortality was higher among males, younger age groups, and those with more severe TBI. CONCLUSION: Excess mortality is high among individuals hospitalized with TBI and most deaths are attributable to the TBI. Increased primary and secondary preventive efforts are warranted to reduce the mortality burden of TBI.

Epidemiology of Competition Injuries in Elite European Judo Athletes: A Prospective Cohort Study.

OBJECTIVE: To determine the injury incidence rate (IIR) and injury pattern, and to identify risk factors for injury, among elite adult European judo athletes. DESIGN: Prospective cohort study. SETTING: The 2015 Under 23 European Judo Championships, Bratislava, Slovakia. PARTICIPANTS: All registered athletes (N = 295). INDEPENDENT VARIABLES: Sex, weight division, and fight outcome. MAIN OUTCOME MEASURES: Injury incidence rates were calculated per 1000 athlete-exposures (IIRAE) and per 1000 minutes of exposure (IIRME) with 95% confidence intervals (CI). Subgroups were compared by calculating the injury incidence rate ratio (RR) with a 95% CI. RESULTS: The overall IIRAE and IIRME were 35.6 (95% CI, 22.8-53.0) and 10.9 (95% CI, 7.0-16.2), respectively. The most frequently injured anatomical region was the head/neck (41%), whereas the most common type of injury was contusion (33%). The risk of injury was almost 4 times greater for defeated athletes compared with winners [RRME 3.80 (95% CI, 1.47-9.82)]. Athletes in middleweight divisions had a greater risk of injury compared with their lightweight [RRME 3.58 (95% CI, 1.24-10.35)] and heavyweight [RRME 2.34 (95% CI, 0.93-5.89)] counterparts. The risk of injury for women was not significantly different from their male counterparts [RRME 1.33 (95% CI, 0.61-2.90)]. CONCLUSIONS: Weight division (middle) and fight outcome (losing) are significant risk factors for injury. The IIR in elite adult judo competition is lower than that in taekwondo and karate. Future research is encouraged to investigate the actual severity of judo injuries, and to investigate potentially modifiable risk factors to mitigate the risk of injury in judo.

Incidence and severity of head injury hospitalisations in Australian children over a 10-year period.

ISSUE ADDRESSED: Child head injuries can cause life-long disability and are a major cause of mortality globally. The incidence and impact of child head injuries in Australia is unknown. This study aimed to quantify the incidence, characteristics and treatment cost and to identify factors associated with the severity of hospitalisations of head injuries in Australian children. METHODS: Linked hospitalisation and mortality data were used to retrospectively examine hospitalisation trends for head injury in children aged ≤16 years and associated factors, in Australia, from 1 July 2002 to 30 June 2012. RESULTS: There were 164 126 hospitalisations of children for head injury during the 10-year period, commonly male (65.5%), or aged ≤5 years (48.3%). The incidence among children aged <1 year and 1-5 years significantly increased by 1.7% (95% CI 0.9-2.6; P < 0.0001) and 1.5% (95% CI 1.1-1.9; P < 0.0001) annually during the study period, respectively. The most common injury mechanisms across all age groups were falls (45.2%) and road trauma (16.0%). Head injury hospitalisations cost $468.9 million, with the higher costs found for children aged 11-16 years, and for the most severe injuries. CONCLUSION: Head injury hospitalisations cost the Australian health system close to half a billion dollars over a 10-year period, with the most serious injuries resulting in lifelong health implications. SO WHAT?: Targeted health promotion strategies such as the promotion of helmet wearing during scooter use, the introduction of cycleways, and impact absorbing surfaces on playgrounds, need to be implemented to reduce the occurrence of head injuries in children.

Socioeconomic variation in injury hospitalisations in Australian children ≤ 16 years: a 10-year population-based cohort study.

BACKGROUND: Childhood injury remains a significant public health problem responsible for significant morbidity and mortality. However, injury has been found to increase with socioeconomic disadvantage for some injuries. The current study examines the 10-year epidemiological profile of injury hospitalisations of children ≤16 years by socioeconomic status for different age group and select types of injury. METHOD: A retrospective analysis of injury hospitalisations of children aged ≤16 years using linked hospitalisation and mortality records during 1 July 2002 to 30 June 2012 was conducted. Negative binomial regression was used to calculate incidence rate ratios (IRRs) for injury hospitalisation rates by socioeconomic disadvantage quintile. RESULTS: There were 679,171 injury hospitalisations for children aged 0-16 years in Australia. Children in more disadvantaged socioeconomic quintiles were more likely to be hospitalised for an injury sustained by: assault (IRR range 1.40 to 3.64), poisoning (IRR range 1.29 to 1.36), heat and hot substances (IRR range 1.07 to 1.34), and pedestrian collisions (IRR range 1.06 to 1.54) than children in advantaged socioeconomic quintiles. CONCLUSIONS: Findings support the notion that the risk of injury hospitalisation among children differs according to socioeconomic gradient and has implications for childhood injury prevention. Policy makers should consider socioeconomic differences in the design of injury prevention measures, particularly measures directed at modifying the built environment and home-based interventions.

Assignment of adverse event indexing terms in randomized clinical trials involving spinal manipulative therapy: an audit of records in MEDLINE and EMBASE databases.

BACKGROUND: Reporting of adverse events in randomized clinical trials (RCTs) is encouraged by the authors of The Consolidated Standards of Reporting Trials (CONSORT) statement. With robust methodological design and adequate reporting, RCTs have the potential to provide useful evidence on the incidence of adverse events associated with spinal manipulative therapy (SMT). During a previous investigation, it became apparent that comprehensive search strategies combining text words with indexing terms was not sufficiently sensitive for retrieving records that were known to contain reports on adverse events. The aim of this analysis was to compare the proportion of articles containing data on adverse events associated with SMT that were indexed in MEDLINE and/or EMBASE and the proportion of those that included adverse event-related words in their title or abstract. METHODS: A sample of 140 RCT articles previously identified as containing data on adverse events associated with SMT was used. Articles were checked to determine if: (1) they had been indexed with relevant terms describing adverse events in the MEDLINE and EMBASE databases; and (2) they mentioned adverse events (or any related terms) in the title or abstract. RESULTS: Of the 140 papers, 91% were MEDLINE records, 85% were EMBASE records, 81% were found in both MEDLINE and EMBASE records, and 4% were not in either database. Only 19% mentioned adverse event-related text words in the title or abstract. There was no significant difference between MEDLINE and EMBASE records in the proportion of available papers (p = 0.078). Of the 113 papers that were found in both MEDLINE and EMBASE records, only 3% had adverse event-related indexing terms assigned to them in both databases, while 81% were not assigned an adverse event-related indexing term in either database. CONCLUSIONS: While there was effective indexing of RCTs involving SMT in the MEDLINE and EMBASE databases, there was a failure of allocation of adverse event indexing terms in both databases. We recommend the development of standardized definitions and reporting tools for adverse events associated with SMT. Adequate reporting of adverse events associated with SMT will facilitate accurate indexing of these types of manuscripts in the databases.

Epidemiology of competition injuries in youth karate athletes: a prospective cohort study.

AIM: To determine the injury incidence rate and injury pattern among youth karate athletes competing in national tournaments in Slovakia, and to identify risk factors for injury. METHODS: Data were collected at nine national youth karate tournaments in Slovakia in 2015 and 2016. Injury incidence rates were calculated per 1000 athlete-exposures (IIRAE) and per 1000 min of exposure (IIRME) with 95% CIs. Subgroups were compared by calculating their rate ratios (RR) with 95% CIs. RESULTS: The overall IIRAE and IIRME were 45.3 (95% CI 38.7 to 52.6) and 35.9 (95% CI 30.7 to 41.7), respectively. The most frequently injured anatomical region was the head/neck (57%), while the most common type of injury was contusion (85%). The risk of injury for the 12-17-year-old age group was almost twice that of the 6-12-year-old age group, after accounting for exposure time (RRME 1.92 (95% CI 1.39 to 2.65)), and the difference was more pronounced for girls than boys (RRME 2.47 (95% CI 1.52 to 4.00) vs RRME 1.62 (95% CI 1.06 to 2.49), respectively). CONCLUSIONS: Youth karate has a relatively large proportion of head injuries. Adolescent and female youth karate athletes are at higher risk of injury compared with their child and male counterparts.