Karen Ashby

Dog bite and injury prevention--analysis, critical review, and research agenda

Objectives—To analyze Australian dog bite injury data and make international comparisons; to review risk and protective factors relating to the dog, injured person, and environment; and to recommend action for prevention and research. Methods—Australian dog bite injury data, complemented by detailed Victorian and regional data from routine health records and vital statistics, were analyzed to determine incidence, severity, nature, circumstances, and trends. International comparison data were extracted from published reports. Risk and protective factor studies were selected for review from electronic and bibliographic searches where data were recent, sample sizes substantial, and bias limited. Results—The Australian dog bite death rate (0.004/100 000) is lower than both the United States (0.05–0.07/100 000) and Canadian rates (0.007/100 000). Victorian hospitalized trend rates were stable between 1987 and 1998, but there was a decline for children <5 years (p=0.019) corresponding with a reduction in dog ownership. Children 0–4 years have the highest rate of serious injury, particularly facial. Adults have longer hospitalizations, most frequently for upper extremity injury. Risk factors include: child, males, households with dogs, certain breeds, male dogs, home location, and leashed dog. Conclusions—Dog bite rates are high and it may therefore be assumed that current preventative interventions are inadequate. Responsible dog ownership, including separating young children from dogs, avoiding high risk dogs, neutering, regulatory enforcement, and standardized monitoring of bite rates are required. Controlled investigations of further risk and protective factors, and validated methods of breed identification, are needed.

Unintentional ingestion of over the counter medications in children less than 5 years old

Objective:  Childhood ingestion of medications remains a substantial problem. Medication available over the counter (OTC) is widely used and has significant toxicity. The present study aims to investigate the nature and extent of unintentional ingestion of OTC medication in children < 5 years old in Victoria, Australia, during the period 1996−2000, in order to highlight critical factors.

The epidemiology of burn injuries in an Australian setting, 2000-2006.

OBJECTIVES To describe presentation characteristics of burn leading to death or hospital treatment (i.e. inpatient admissions and emergency department [ED] presentations) across the state of Victoria, Australia, for the years 2000-2006 inclusive. METHODS Data were provided by the Victorian Injury Surveillance Unit (VISU) from three different datasets pertaining to burn deaths, hospital inpatient admissions and non-admitted ED presentations. Population estimates were derived from census data provided by Australian Bureau of Statistics. RESULTS During the 7-year period, 178 people died and 36,430 were treated for non-fatal burn injury, comprising 7543 hospital admissions and 28,887 non-admitted ED presentations. Males, children aged less than 5 years of age, and the elderly (> or =65 years of age) were at the highest risk of injury. Contact with heat and hot substances represented the major aetiological factor contributing to thermal injuries accounting for 64% of all hospital admissions and 90% of ED presentations. Temporal trends indicate no change in the population rate of burn deaths or hospital admissions during the study period. CONCLUSIONS ED presentations and hospital admissions and deaths have remained the same over this study period, but rates of burn remain high in males, children and the elderly. This could be due to variations in the implementation of government prevention and control programs and the divergence in efficient treatments and clinical practices amongst hospital care providers. Therefore, educational efforts for prevention should be the keystone to minimise the incidence of burns.

Firearm related deaths: the impact of regulatory reform

Objectives: To examine trends in rates of firearm related deaths in Victoria, Australia, over 22 years in the context of legislative reform and describe and investigate impact measures to explain trends. Design: Mortality data were extracted from vital statistics for 1979–2000. Data on firearm related deaths that were unintentional deaths, assaults, suicides, and of undetermined intent were analyzed. Rates were calculated with population data derived from estimates by the Australian Bureau of Statistics. A quasi-experimental design that used a Poisson regression model was adopted to compare relative rates of firearm related deaths for Victoria and the rest of Australia over three critical periods of legislative reform. The Wilcoxon signed ranks test was used to assess changes in the types of firearm related deaths before and after 1998. Results: In Victoria, two periods of legislative reform related to firearms followed mass shooting events in 1988 and 1996. A national firearm amnesty and buyback scheme followed the latter. Victorian and Australian rates of firearm related deaths before reforms (1979–86) were steady. After initial Victorian reforms, a significant downward trend was seen for numbers of all firearm related deaths between 1988 and 1995 (17.3% in Victoria compared with the rest of Australia, p<0.0001). A further significant decline between 1997 and 2000 followed the later reforms. After the later all state legislation, similar strong declines occurred in the rest of Australia from 1997 (14.0% reduction compared with Victoria, p = 0.0372). Victorian reductions were observed in frequencies of firearm related suicides, assaults, and unintentional deaths before and after the 1988 reforms, but statistical significance was reached only for suicide. Conclusion: Dramatic reductions in overall firearm related deaths and particularly suicides by firearms were achieved in the context of the implementation of strong regulatory reform.

An analysis of marine animal injuries presenting to emergency departments in Victoria, Australia.

OBJECTIVE To describe the epidemiology of marine animal injury in Victoria, Australia, in order to identify risk factors and recommend prevention strategies. METHODS Retrospective, descriptive study of patients with marine animal injuries who presented to Victorian emergency departments between October 1995 and June 2000. Data were obtained from the Victorian Emergency Minimum Dataset. The main outcome measures were the marine animal involved; the nature, time, and place of injury; and subject demographics and activity. RESULTS Two hundred five injuries were identified, and males predominated (71.7%, P < .01). Injuries were most frequent during summer and when jellyfish were most prevalent. Various fish species, stingrays, jellyfish, and sharks were incriminated in 83 (40.5%), 46 (22.4%), 42 (20.5%), and 5 (2.4%) injuries, respectively. Most (65.9%) injuries occurred during leisure or sport, and 72 (35.1%) occurred in a place of recreation. Spikes, spines, and barbs caused 82 (40.0%) injuries, and stings caused 54 (26.3%) injuries. Bites were uncommon. Most injuries were to the limbs, with the hands or feet injured in 127 (62.0%) patients. Forty (19.5%) injuries were associated with a retained foreign body. Only 17 (8.3%) patients required admission to the hospital. CONCLUSIONS Marine animal injury is seasonal but rarely serious. Vigilance is required when handling fish, and protective gloves, footwear, and clothing are recommended where appropriate. Clinicians should consider retained foreign bodies in penetrating injuries. Warnings are recommended when jellyfish are most prevalent.

Analysis of General Aviation Crashes in Australia Using the Human Factors Analysis and Classification System

General aviation accidents represent 70% to 90% of all aviation accidents. Human error is implicated as a contributory factor in 85% of these crashes. General aviation crashes (N = 169) were analyzed using the Human Factors Analysis and Classification System (HFACS) to elucidate the role of error in Australian crashes. Aircrew were more likely to commit skill-based and decision errors in the presence of substandard personal readiness, physical and mental limitations, and adverse mental states. Violations were associated with the presence of crew resource management failures. Reconfiguring the assessment of crashes by aviation insurers will further support analyses consistent with the systems approaches to accident investigation and comparison with other accident data sources.

Changing epidemiology of intentional antidepressant drug overdose in Victoria, Australia

Aim: To determine the epidemiology of intentional antidepressant drug overdose (OD), over an extended time period, in Victoria, Australia. Methods: Retrospective epidemiological study of all cases reported to the Victorian Emergency Minimum Dataset (VEMD) January 1998 to December 2007 and calls to the Victorian Poisons Information Centre (VPIC) June 2005 to September 2008. Results: 5467 VEMD cases were analysed. 3169 (57.9%) cases involved selective serotonin reuptake inhibitors (SSRIs) and 1149 (21%) involved tricyclic antidepressants (TCAs). Sertraline (1252, 22.9% cases) was the most common drug. During 2001, the peak year of OD, there were 8.8 OD/100 000 population in the SSRI group and 3.8 OD/100 000 population in the TCA group. Trends over the study period showed increasing SSRI and ‘other’ newer antidepressant prescription rates and decreases for TCA and monoamine oxidase inhibitors (MAOI). However, the risks of OD in all drug classes were similar and OD/100 000 prescriptions trended downwards for all drug classes over time. 1833 VPIC calls were analysed. Calls relating to SSRIs were the most common yet SSRI OD was associated with significantly fewer symptoms (p < 0.001) and fewer patients with Poisoning Severity Score classifications of moderate or severe (p < 0.01). Conclusions: Antidepressant OD patterns are changing. Antidepressant OD incidence is following prescribing trends. The risk of OD is similar for all drug classes. Absolute numbers of OD and OD/100 000 prescriptions are decreasing for all drug classes.

Australian trampoline injury patterns and trends.

Objectives: To examine national trampoline injury patterns and trends in the context of improved product safety standards and trampoline design modifications.

Victorian Emergency Minimum Dataset: Factors that impact upon the data quality

Objective:  The Victorian Emergency Minimum Dataset (VEMD) records details of approximately 80% of Victorias ED presentations. Its usefulness for quality assurance and research relies on the data being both complete and accurate. We aimed to determine the factors that impact adversely on the collection of high‐quality VEMD data.

Investigating the over-representation of older persons in do-it-yourself home maintenance injury and barriers to prevention

Objective: To examine why older persons undertake high-risk do-it-yourself (DIY) home maintenance and under what circumstances, what constitutes acceptable low-risk alternatives to DIY, and to assess if alternatives are feasible in the current context. Design: Exploratory qualitative study using focus-group methodology. Setting and subjects: Fifteen focus groups were conducted, involving 118 persons aged 60 years and older, in two Melbourne communities. Participants resided locally, participated in local seniors groups, or received treatment for a DIY injury at one of two public hospitals serving these communities. Results: Older persons’ involvement in DIY ranged from necessity to choice. A number chose DIY for general fitness enhancement, satisfaction and pride in a job well done, and giving meaning and enjoyment to daily tasks. However, some older, frailer seniors were forced into DIY because of difficulties in choosing appropriate alternatives; lack of knowledge of some available resources and services; the challenge of accessing cost-effective and reliable private service providers; and fear of vulnerability to overcharging, overservicing or their personal security. Preferred DIY alternatives were local government providers, local paper advertised services, recommendations to private service providers and family, friends or neighbors. Lack of knowledge of other existing alternatives was an impediment to preventing DIY injury, or accessing DIY alternatives. A number of potentially feasible alternatives to DIY were identified from our review. Conclusions: This research is an important first step in understanding issues facing community-dwelling seniors remaining at home, and provides a basis on which government agencies and other providers can develop services to meet increasing needs.