A retrospective benefit-cost analysis of the 1997 stair-fall requirements for baby walkers

Based on estimates from the U.S. Consumer Product Safety Commission (CPSC), there were about 25,000 baby walker-related injuries treated annually in U.S. hospital emergency departments during the early 1990s. This amounted to about 8 injuries for every 1000 baby walkers in use. Most injuries resulted from falls down stairs. After CPSC initiated a regulatory proceeding in 1994, the CPSC staff worked with industry to address the stair-fall hazard. This cooperative effort resulted in requirements designed to prevent stair-fall injuries that became effective in 1997 as part of a revised voluntary safety standard. This study presents a retrospective benefit-cost analysis of the 1997 stair-fall requirements. The benefits were defined as the reduction in the costs of injuries resulting from the use of the safer walkers. The costs were defined as the additional resource costs associated with making baby walkers safer. The study found that the stair-fall requirements were highly effective in reducing the risk of stair-fall injury, and that the benefits of the requirements substantially exceeded the costs. The expected net benefits (i.e., benefits minus costs) amounted to an average of about $169 per walker, over the walker's expected product life. Given current U.S. sales of about 600,000 baby walkers annually, the present value of the expected net benefits associated with 1 year's production amounts to over $100 million annually. A sensitivity analysis showed that the major findings were robust with respect to variations in underlying assumptions.     

Estimation of the social costs of home injury: a comparison with estimates for road injury

Home injury is thought to constitute a major health burden in most developed countries. However, efforts to address this burden have been hampered by reluctance from outside agencies to interfere with the home environment of individuals, even if it benefits the occupant's safety. This paper outlines cost–benefit evaluation methods established in the transport safety domain applied to home safety to estimate the social cost of unintentional home injury in New Zealand. Estimates of costs imposed on society by home injury can provide an important motivator for initiating research and programmes to reduce home injury risk. Data sources used included mortality data, hospitalisation data and data on minor injuries that required medical treatment, but not hospital admission. We estimated that unintentional home injuries in New Zealand impose an annual social cost of about $NZ 13 billion (about $US 9 billion), which is about 3.5 times the annual social cost of road injury. These estimates provide a rational evidence base for decisions on housing-focused safety regulation or interventions that always carry some cost, and therefore need to be weighed against the benefits of injuries potentially prevented.     

Assessment of injury potential in pediatric bed fall experiments using an anthropomorphic test device

Falls from beds and other furniture are common scenarios provided to conceal child abuse but are also common occurrences in young children. A better understanding of injury potential in short-distance falls could aid clinicians in distinguishing abusive from accidental injuries. Therefore, this study investigated biomechanical outcomes related to injury potential in falls from beds and other horizontal surfaces using an anthropomorphic test device representing a 12-month-old child. The potential for head, neck, and extremity injuries and differences due to varying impact surfaces were examined. Linoleum over concrete was associated with the greatest potential for head and neck injury compared to other evaluated surfaces (linoleum over wood, carpet, wood, playground foam). The potential for severe head and extremity injuries was low for most evaluated surfaces. However, results suggest that concussion and humerus fracture may be possible in these falls. More serious head injuries may be possible particularly for falls onto linoleum over concrete. Neck injury potential in pediatric falls should be studied further as limitations in ATD biofidelity and neck injury thresholds based solely on sagittal plane motion reduce accuracy in pediatric neck injury assessment. In future studies, limitations in ATD biofidelity and pediatric injury thresholds should be addressed to improve accuracy in injury potential assessments for pediatric short-distance falls. Additionally, varying initial conditions or pre-fall positioning should be examined for their influence on injury potential.     

Evidence-based implementation of evidence-based medicine.

BACKGROUND: The slow and haphazard process of translating research findings into clinical practice compromises the potential benefits of clinical research. Most quality improvement (QI) initiatives are based on the beliefs of decision makers rather than on the growing theoretical and empirical knowledge about organizational and provider behavior change. If future QI activities are to improve the translation of evidence into practice, they should be based on an understanding of the different models and strategies for implementing research evidence and the evidence base supporting their use. Evidence-based medicine should be complemented by evidence-based implementation. THE EVIDENCE FOR DIFFERENT STRATEGIES OF IMPLEMENTING CHANGE: A general framework for changing practice based on theoretical perspectives and research evidence considers a variety of theoretical approaches and their contribution to an understanding of provider behavior change. The framework summarizes evidence from systematic reviews of provider behavior change, which suggest the potential of several dissemination and implementation strategies that are effective under certain conditions. Passive dissemination approaches are largely ineffective; specific strategies to implement research-based recommendations appear to be necessary to ensure practice change. Multifaceted interventions that address specific barriers to change are more likely to lead to changes in practice. PRACTICAL, FIVE-STAGE FRAMEWORK: A practical, five-stage framework for changing practice, which is illustrated with experiences from a comprehensive program on implementing evidence-based clinical guidelines in primary care, includes development of a concrete proposal for change; analysis of the target setting and group to identify obstacles to change; linking interventions to needs, facilitators, and obstacles to change; development of an implementation plan; and monitoring progress with implementation.     

The occurrence of farm--environmental injuries in a Swedish municipality.

The objectives of the present baseline study were to investigate work- and nonwork-related injuries in farm environments. 364 or 10% of all injuries in the study area occurred within farm environments. 174 (84%) of these were classified as work-related and 190 (52%) as home injuries. Most of the cases of farming injuries occurred during repair and maintenance work, animal care, and machine and vehicle use. The dominant types of injuries were falls, crushes, and eye injuries. Home injuries on farms accounted for 22% of all home injuries in the study area. Fourteen percent of these involved people who were not living on farms. Child injuries occurred in the home as well as in the work environment.     

The Cochrane Collaboration and bicycle helmets

Effective interventions for care of health need to be based on scientific evidence. To this end, the Cochrane Collaboration insists that its reviews should be based on reliable data, normally obtained by randomised controlled trial. To constitute evidence, data should also support a hypothesis in accord with scientific laws and knowledge. From these considerations, an appraisal is made of the conclusion of the Cochrane review Helmets for preventing head and facial injuries in bicyclists, that it establishes scientific evidence that all types of standard helmet protect against injuries to the brain. It is concluded that the review takes no account of scientific knowledge of types and mechanisms of brain injury. It provides, at best, evidence that hard-shell helmets, now rarely used, protect the brain from injury consequent upon damage to the skull. The review therefore is not a reliable guide to the efficacy of helmets and to interventions concerning their use.     

Driver rehabilitation: A systematic review of the types and effectiveness of interventions used by occupational therapists to improve on-road fitness-to-drive

Objective

Driver rehabilitation has the potential to improve on-road safety and is commonly recommended to clients. The aim of this systematic review was to identify what intervention approaches are used by occupational therapists as part of driver rehabilitation programmes, and to determine the effectiveness of these interventions.

Method

Six electronic databases (MEDLINE, CINAHL, PsycInfo, Embase, The Cochrane Library, and OTDBase) were searched. Two authors independently reviewed studies reporting all types of research designs and for all patient populations, provided the interventions could be administered by occupational therapists. The methodological quality of studies was assessed using the ‘Downs and Black Instrument’, and the level of evidence for each intervention approach was established using ‘Centre for Evidence Based Medicine’ criteria.

Results

Sixteen studies were included in the review. The most common type of intervention approach used was computer-based driving simulator training (n = 8), followed by off-road skill-specific training (n = 4), and off-road education programmes (n = 3). Car adaptations/modifications were used in one of the included studies. There was significant variability between studies with regards to frequency, duration, and total number of intervention sessions, and the diagnoses of the participants. Of the four intervention approaches, there is evidence to support the effectiveness of off-road skill-specific training (with older clients), and computer-based driving simulator training (with both older clients and participants with acquired brain injury).

Conclusion

Three types of intervention approaches are commonly reported, however, there is limited evidence to determine to effectiveness of these in improving fitness-to-drive. Further research is required, with clients from a range of diagnostic groups to establish evidence-based interventions and determine their effectiveness in improving these clients’ on-road fitness-to-drive.     

健身用家具设计探析

目的 针对当前家用健身器材与家居环境的适应性问题,探析健身用家具的需求与健身功能的可行性。方法 以家庭健身需求的增长为背景,分析当前家庭健身器材与家居环境存在的问题,对健身用家具的设计路径进行探索,并以健身扶手椅为例进行设计实践与有限元分析验证。结果 装有双向阻力机构的健身扶手椅在使用时的两种极限状态下的最大形变量分别为0.375 mm与0.260 mm、最大应力分别为1.56 MPa与1.50 MPa,均在安全系数4.0下榆木材料的容许应力的范围内,且符合《GB/T 3326—2016》标准,可实现其健身功能与坐具功能。结论 健身用家具既能满足健身需求、又能融入家居环境,其设计路径具有可行性。     

Assessing "best evidence": issues in grading the quality of studies for systematic reviews.

BACKGROUND: Evidence-based medicine, clinical practice guidelines, quality and value of health services, and science-based decision making are becoming mainstays of the health care sector. As part of the evidence-based movement, systematic reviews of the literature on clinical questions are becoming increasingly common. Part of the structured approach to evaluating the literature involves assessing the quality of individual studies included in systematic reviews. REVIEW QUESTIONS: To clarify issues in this area, in 1998 the Agency for Health Care Policy and Research commissioned a small project to determine how its 12 Evidence-based Practice Centers were carrying out this part of their systematic reviews (called evidence reports). The number of potential checklists, scales, and similar tools for grading the methodology or the clinical relevance of individual reports is large; the reliability, the validity, the feasibility, and the utility of these tools are either unmeasured or quite variable. CONCLUSIONS: Numerous methodologic questions await definitive research and answers, but in the meantime teams developing authoritative systematic reviews can take certain steps to ensure that their approaches to grading the quality of articles meet applicable scientific standards. Clinicians, program administrators, and health policymakers can then be confident in the overall strength of the evidence and study conclusions.     

Reducing inappropriate restraint use in Colorado's long-term care facilities

BACKGROUND: Many physical and psychosocial complications arise from the use of physical restraints. Restraints in nursing homes have been estimated to cause approximately 1 in every 1,000 nursing home deaths. When restraints are removed, quality of life and functional status improve; there does not appear to be an increase in serious falls, and serious injuries may even decline. METHODS: To assess the current status in Colorado nursing homes, in 1997 the Colorado Foundation for Medical Care mailed a questionnaire to 214 nursing homes to identify remaining barriers to restraint reduction. Results were used to plan interventions to further reduce inappropriate use that met most providers' needs. Given providers' need for greater family and public awareness of the risks associated with restraints, the project team developed educational tools for distribution to families and a media campaign for the public. In addition, an assessment tool and educational materials were created to facilitate appropriate use of devices and implementation of least-restrictive interventions. Data were collected before and after the intervention phase on remaining barriers, frequency of assessment, and perceived level of success of restraint reduction. RESULTS: Most of the 175 (82%) of Colorado's 214 long-term care providers who received educational materials found them very useful and recommended expansion to other states. Facilities indicated a higher perceived level of success in reducing restraints, an increase in the frequency of assessments, and a decrease in barriers to restraint reduction. The public awareness campaign, performed in tandem with the state health department, reached more than a half-million people in Colorado, using the slogan, "Restraints Have Risks!"     

Primary care physicians perceptions and practices regarding fall prevention in adult's 65 years and over

Background

Falls are the leading cause of injury deaths and the most common cause of disability, premature nursing home admissions, medical costs, and hospitalizations among people 65 years and over. Interventions targeting multiple fall risk factors can reduce fall rates by 30–40%. Yet, national studies show that screening conducted by physicians for older adult falls is short of acceptable standards. Tri-County Health Department (TCHD) in Colorado conducted a study to examine fall prevention practices among primary care physicians in our jurisdiction.

Methods

TCHD randomly sampled primary care physicians (n = 100) obtained from a statewide healthcare provider database and surveyed them about fall prevention screening practices and perceived barriers to screening. Data were examined using single and multiple logistic regression analysis.

Results

The response rate was 67.6%. Only 8% of responding physicians based their fall prevention practices on clinical guidelines from any recognized organizations. Frequently reported barriers included a lack of time during visits, more pressing issues, and a lack of educational materials. Physicians who did not accept Medicare (OR 0.163 [CI 0.03–0.84]) remained significantly less likely to refer patients for home safety assessments than those who did, on multivariate analysis.

Conclusions

This study reveals certain physicians require targeted interventions to improve fall prevention practices and use of clinical guidelines. Recommendations include providing physicians with trainings, screening guides, educational materials, environmental/home safety checklists, and referral resources.     

Treated injuries in Northern Vermont

Objectives: To study characteristics of injury events and injuries requiring treatment in a Vermont population. Method: A one year 30% prospective sample was studied of persons from 22 communities who received first physician care for injury at the Medical Center Hospital of Vermont. Results: Modal injuries were—superficial involving skin only among children below age 10, overexertion injuries among 10–59 year olds, and fractures among older persons. Among interviewed males ages 20–59, 31% of injuries were work related. Among females 26% were work related. Examining hospitalized cases only would have overemphasized falls, chemical injuries, leg fractures, transportation and nursing home injuries, and undercounted overexertion injuries, especially to the back, arm fractures, and injuries during recreation, work and home activities. Most common products/materials in use when injured were recreational equipment (24%) and motor vehicles (9%). Those most often causing injury were ground (20%) and home structures/construction materials (17%). No product was involved in 39% of injury event initiation and 15% of injury causation. Conclusion: In order to adequately reflect the distribution of treated injuries in the community by anatomical area, age, and event type studies must examine both emergency department and hospitalized cases and use a data collection system capable of recording several parameters to describe injury events and products/materials involved.     

Tools, methods, and strategies. Do innovative models of health care delivery improve quality of care for selected vulnerable populations? A systematic review.

BACKGROUND: A criticism of conventional office or clinic-based models of care is that they focus on patients' urgent problems and do not provide the comprehensive assessments, education, and psychosocial support that vulnerable patients also need. Innovative models have emerged to address these needs. A systematic review of prospective studies involving searches of computerized databases, reviews of reference lists, and contacts with authors, was conducted to determine whether multidisciplinary teams, outreach or home care, and case management improve the quality of the care in two vulnerable populations-the terminally ill and the mentally ill. RESULTS: Literature searches identified 730 citations. 52 original articles met screening standards, and 24 studies fulfilled all criteria. Patient and caregiver satisfaction was consistently higher with innovative models. In no study was satisfaction lower. Functional, clinical, or psychological improvements were not consistently demonstrated. For mentally ill patients, multidisciplinary outreach strategies were effective in reducing inpatient hospitalizations. Costs were inadequately assessed in the studies to draw a summary conclusion. DISCUSSION: Like other interventions, health care delivery models can be assessed from an evidence-based perspective. More needs to be learned about the costs and health improvements of innovative models before we can determine whether the increased patient and caregiver satisfaction found justifies widespread use of these models. Development of a uniform set of quality outcome measures and encouragement to evaluate efforts and disseminate results will help accomplish this goal.     

Pediatric short-distance household falls: biomechanics and associated injury severity

Objectives

Short-distance household falls are a common occurrence in young children, but are also a common false history given by caretakers to conceal abusive trauma. The purpose of this study was to determine the severity of injuries that result from accidental short-distance household falls in children, and to investigate the association of fall environment and biomechanical measures with injury outcomes.

Methods

Children aged 0–4 years who presented to the Emergency Department with a history of a short furniture fall were included in the study. Detailed case-based biomechanical assessments were performed using data collected through medical records, interviews, and fall scene investigations. Injuries were rated using the Abbreviated Injury Scale (AIS). Each case was reviewed by a child abuse expert; cases with a vague or inconsistent history and cases being actively investigated for child abuse were excluded.

Results

79 subjects were enrolled in the study; 15 had no injuries, 45 had minor (AIS 1) injuries, 17 had moderate (AIS 2) injuries, and 2 had serious (AIS 3) injuries. No subjects had injuries classified as AIS 4 or higher, and there were no fatalities. Children with moderate or serious injuries resulting from a short-distance household fall tended to have fallen from greater heights, have greater impact velocities, and have a lower body mass index than those with minor or no injuries.

Conclusion

Children aged 0–4 years involved in a short-distance household fall did not sustain severe or life-threatening injuries, and no children in this study had moderate or serious injuries to multiple body regions. Biomechanical measures were found to be associated with injury severity outcomes in short-distance household falls. Knowledge of relationships between biomechanical measures and injury outcomes can aid clinicians when assessing whether a child's injuries were the result of a short-distance fall or some other cause.     

A systematic review of safety violations in industry

It is widely known that intentional non-malevolent violations of safety procedures and norms occur and evidence shows that safety violations can increase the risk of accidents. However, little research about the causes of these violations in work settings exists. To help shed light on the causes, this paper systematically reviews the empirical causes of safety violations in industry. Electronic database literature searches were performed to identify relevant articles published prior to January 1, 2007. Thirteen articles met the inclusion criteria and 57 different variables were examined as predictors of safety violations. Study settings were healthcare delivery, commercial driving, aviation, mining, railroad, and construction. The predictors were categorized into individual characteristics, information/education/training, design to support worker needs, safety climate, competing goals, and problems with rules. None of the reviewed studies examined whether violations can improve system performance or safety. Methodological suggestions and a macroergonomic framework are offered for improving future studies of the epidemiology of safety violations.     

The economic burden of injury: Health care and productivity costs of injuries in the Netherlands

BackgroundDetailed information on health care costs and productivity costs for the whole spectrum of injuries is lacking. We measured the total costs of injuries by external-cause, injury groupings, age and sex.MethodInjury patients visiting an Emergency Department in the Netherlands were included. Health service use and work absenteeism were estimated with national database data and a prospective follow-up study. Health care costs (direct costs) and productivity costs (indirect costs) were determined using the incidence-based Dutch Cost of Injury Model.ResultsTotal costs of injuries were €3.5 billion annually (€210/capita and €4300/patient); €2.0 billion healthcare costs and €1.5 billion productivity costs. Home and leisure injury subcategory falls caused 41% of total costs. Traffic injury was prominent in the 15–54 age group, mainly due to bicycle injuries. Sports injuries, in special football/soccer injuries, resulted in high costs in the 15–24 age group. Although costs per patient were comparable between males and females, health care costs were higher in females, whereas males have more than twice as high productivity costs. Health care costs were highest for hip fractures (€20,000/patient). Extremity fractures had high costs due to high incidences and high productivity costs per patient.ConclusionOur detailed cost model identified known risk groups, such as elderly females with hip fractures resulting from falls, as well as less obvious important high risk groups, such as young children falling from furniture, young males who sustained football/soccer injuries and bicycle injuries among all ages. This information is essential to assess additional priority areas for prevention.     

How effective is drug testing as a workplace safety strategy? A systematic review of the evidence

The growing prevalence of workplace drug testing and the narrow scope of previous reviews of the evidence base necessitate a comprehensive review of research concerning the efficacy of drug testing as a workplace strategy. A systematic qualitative review of relevant research published between January 1990 and January 2013 was undertaken. Inclusion criteria were studies that evaluated the effectiveness of drug testing in deterring employee drug use or reducing workplace accident or injury rates. Methodological adequacy was assessed using a published assessment tool specifically designed to assess the quality of intervention studies. A total of 23 studies were reviewed and assessed, six of which reported on the effectiveness of testing in reducing employee drug use and 17 which reported on occupational accident or injury rates. No studies involved randomised control trials. Only one study was assessed as demonstrating strong methodological rigour. That study found random alcohol testing reduced fatal accidents in the transport industry. The majority of studies reviewed contained methodological weaknesses including; inappropriate study design, limited sample representativeness, the use of ecological data to evaluate individual behaviour change and failure to adequately control for potentially confounding variables. This latter finding is consistent with previous reviews and indicates the evidence base for the effectiveness of testing in improving workplace safety is at best tenuous. Better dissemination of the current evidence in relation to workplace drug testing is required to support evidence-informed policy and practice. There is also a pressing need for more methodologically rigorous research to evaluate the efficacy and utility of drug testing.     

Intermittent pneumatic compression in patients with ESRD. A systematic review

Introduction: Patients with end‐stage renal disease (ESRD) experience frequent hemodialysis (HD) complications. Intradialytic hypotension (IDH) is a common complication presenting in approximately between 20 and 50% of HD sessions. Available interventions such as volume replacement or vasoactive medications are associated with significant side effects. Intermittent pneumatic compression (IPC) has been proposed as a feasible intervention for the prevention of IDH, treatment of peripheral arterial disease and venous ulcers. These devices apply intermittent pressure to the legs improving arterial blood flow, mobilization of pooled blood with an increase in venous return increasing the effective circulatory volume. Our goal was to identify the published clinical evidence on whether IPC has a circulatory benefit and is it well‐tolerated among patients receiving HD. Methods: We conducted a systematic review to identify studies assessing the efficacy and safety of IPC in patients with ESRD. Our primary outcome was IDH. Secondary outcomes such as HD comfort, ultrafiltration volume, and physical activity were collected. No restrictions where used and we included all observational and interventional studies. Two reviewers performed screening and study quality assessment. Findings: We included seven studies. Out of the seven studies, five addressed IDH, and the rest were included for secondary outcomes such as physical capacity and HD comfort. In one randomized crossover trial comparing exercise against IPC, 21 patients were randomized to 3 different arms (no intervention, cycling, IPC) a decrease in the rates of IDH with IPC was described (43%, 38%, and 24% respectively P = 0.014). The smaller studies corroborated these results. All studies where at high risk of bias. Discussion: IPC might offer significant benefits for patients undergoing HD not limited to prevention of IDH but also improvement of hemodialysis comfort and physical capacity. However, our results should be interpreted in the context of its limitations.     

Visibility aids for pedestrians and cyclists: a systematic review of randomised controlled trials

This study aims to quantify the effect of visibility aids on the occurrence of pedestrian and cyclist-motor vehicle collisions and injuries, and drivers' responses in detection and recognition. Trial reports were systematically reviewed according to predefined eligibility criteria, including randomised controlled trials or controlled before-and-after trials comparing visibility aids and no visibility aids, and of different visibility aids on pedestrian and cyclist safety, and drivers' responses in detection and recognition. This included trials in which the order of interventions was randomised, or balanced using a Latin square design. Two reviewers independently assessed validity of trials and abstracted data. The main outcome measures were pedestrian and cyclist-motor vehicle collisions and injuries, and drivers'/observers' responses in the detection and recognition time, distance and frequency. No trials which assessed the effect of visibility aids on pedestrian and cyclist-motor vehicle collisions and injuries were identified. Twelve trials examined the effectiveness of daytime visibility aids and 25 trials on night time visibility aids, including 882 participants. Drivers' and observers' detection and recognition improved with visibility aids. For daytime, fluorescent materials in yellow, red and orange colours enhanced detection and recognition. "Biomotion" markings enhanced recognition. Substantial heterogeneity between the trials limits the possibility for meta-analysis. Visibility aids have the potential to improve detection and recognition and would merit further development to gain public acceptance. However, the impact of visibility aids on pedestrian and cyclist safety is unknown and needs to be determined.     

Effects of a mandatory safety belt law on hospital admissions

Although the effectiveness of automobile safety belts in reducing risk of serious injury in traffic crashes is well documented, safety belt use in many U.S. jurisdictions remains low. Michigan's mandatory safety belt law for front-seat occupants, implemented in July 1985, is one of 34 similar laws in the United States intended to increase belt use and reduce crash-related injuries. Using time-series intervention analyses of data from 14 hospitals throughout the state, we found a 19% reduction in the rate of admitted patients for all automobile occupant injuries and a 20% reduction in the rate of admitted patients with extremity injuries following implementation of the safety belt law. The utility of hospital data for the evaluation of interventions like the safety belt law reinforce the importance of consistently recording E-codes for all injury patients.