Screening and Brief Intervention to Reduce Marijuana Use Among Youth and Young Adults in a Pediatric Emergency Department

Objectives: Marijuana was involved in 209,563 emergency department (ED) visits in 2006, according to the Drug Abuse Warning Network. Although screening and brief intervention (SBI) has been effective in changing drinking among ED patients in a number of studies, tests of marijuana SBI in a pediatric emergency department (PED) have not yet been reported. The aim of this pilot study was to test whether SBI is effective in reducing marijuana consumption among youth and young adults presenting to a PED with a diverse range of clinical entities. Methods: A three‐group randomized controlled preliminary trial was structured to test 1) differences between Intervention (Int) and standard Assessed Control (AC) groups in marijuana consumption, from baseline to 12 months, and 2) the feasibility of adding a Nonassessed Control (NAC) group to evaluate regression to the mean and assessment reactivity. Patients aged 14–21 years in an urban, academic PED were screened during 2006–2007, using standardized risk factor questions. Subjects were eligible if they used marijuana three or more times in the past 30 days, but were excluded for co‐occurring high‐risk alcohol use. Consented enrollees were randomized to NAC, AC, and Int groups in a two‐stage process that permitted blinding to status during assessment and follow‐up. NACs received a resource handout, written advice about marijuana use risks, and a 12‐month follow‐up appointment. ACs were assessed using standardized instruments and received resources, written advice, and 3‐ and 12‐month follow‐up appointments. The Int group received assessment, resources, written advice, 3‐ and 12‐month appointments, a 20‐minute structured conversation conducted by older peers, and a 10‐day booster telephone call. A peer educator utilized a motivational style interview protocol adapted for adolescents to elicit daily life context and future goals, provide feedback, review pros and cons of marijuana use, assess readiness to change, evaluate strengths and assets, negotiate a contract for change, and make referrals to treatment and/or other resources. Measurements included demographic information; 30‐day self‐report of marijuana use; attempts to quit, cut back, or change conditions of use; and risk factor questions repeated at follow‐up. Results: Among 7,804 PED patients screened, 325 were eligible; 210 consented and enrolled (Int, n = 68; AC, n = 71; NAC, n = 71), with a 12‐month follow‐up rate of 71%. For the primary objective, we compared Int to AC. At 12 months, Int participants were more likely to be abstinent for the past 30 days than ACs (odds ratio [OR] for reported abstinence = 2.89, 95% confidence interval [CI] = 1.22 to 6.84, p < 0.014). The Int group had greater reduction in days used, baseline to 12 months, controlling for baseline (Int = –7.1 vs. AC = –1.8), were less likely to have been high among those who smoked (OR = 0.39, 95% CI = 0.17 to 0.89, p < 0.05), and were more likely to receive referrals. In a linear regression model controlling for baseline use, NACs smoked 4 fewer days per month than ACs, but consumption was not significantly different, suggesting no assessment reactivity effect. Conclusions: A preliminary trial of SBI promoted marijuana abstinence and reduced consumption among PED patients aged 14–21 years. A no‐contact condition for the NAC group over the year after enrollment was insufficient to capture enrollees for follow‐up across a range of baseline acuity.     

Analysis of Alcohol Use Clusters among Subcritically Injured Emergency Department Patients

Objectives : 1) To cluster patients according to self-reported drinking patterns using cluster analysis; 2) to externally validate clustered groups on variables related to drinking but not used in the cluster analysis; and 3) to use the clustered patients' responses to alcohol consumption questions to develop a brief screening tool emergency physicians can use to identify patients in need of referral or intervention related to potentially hazardous alcohol consumption. Methods : A self-report battery was administered to 95 subcritically injured patients. Patients also were saliva alcohol-tested upon arrival to the ED. Using the patients' self-reported quantity, frequency of alcohol consumption, and frequency of having ≥6 drinks on a drinking occasion, patients were categorized into 3 groups using cluster analysis. The 3 clusters were externally validated using injury-related variables, alcohol-related consequences, and the patients' reported readiness to change drinking. A screening tool was developed using cutoff values reported by the patients' answers to drinking pattern questions. Results : Fifty-nine patients were alcohol-negative, and 36 tested alcohol-positive (i.e., >4 mmol/L [>20 mg/ dL]) or had elevated scores on an alcohol problem screening instrument. Three distinct drinking pattern clusters were found. Clusters were validated using discriminant function analysis and multivariate analyses of variance to confirm cluster classifications. Steady and high-intensity drinkers reported more alcohol-related negative consequences, and high-intensity drinkers indicated they would consider changing their drinking. The screening tool correctly classified 97% of the patient sample into their respective clusters. Conclusions : Using the drinking pattern questions in the clustering procedure was effective for grouping injured patients into clusters that could be differentiated on other drinking-related variables. The resulting screening tool can be used in the ED setting to screen patients for further assessment and intervention. The readiness-to-change results support the assertion that the injury event provides a “teachable moment” for subcritically injured patients whose injury may be related to their alcohol consumption.     

An Emergency Department Intervention to Increase Booster Seat Use for Lower Socioeconomic Families

Objectives: To evaluate the effectiveness of booster seat education within an emergency department (ED) setting for families residing in lower socioeconomic neighborhoods.
Methods: This was a prospective, randomized study of families with children aged 4 to 7 years and weighing 40 to 80 lb who presented to a pediatric ED without a booster seat and resided in lower socioeconomic communities. Subjects were randomly assigned to one of three groups: 1) received standard discharge instructions, 2) received five-minute booster seat training, and 3) received five-minute booster seat training and free booster seat with installation. Automobile restraint practices were obtained initially and by telephone at one month.
Results: A total of 225 children were enrolled. Before randomization in the study, 79.6% of parents reported that their child was usually positioned in the car with a lap/shoulder belt and 13.3% with a lap belt alone. Some parents (16.4%) had never heard of a booster seat, and 44.9% believed a lap belt was sufficient restraint. A total of 147 parents (65.3%) were contacted for follow-up at one month. Only one parent (1.3%) in the control group and four parents (5.3%) in the education group purchased and used a booster seat after their ED visit, while 55 parents (98.2%) in the education and installation group reported using the booster seat; 42 (75.0%) of these parents reported using the seat 100% of the time.
Conclusions: Education in a pediatric ED did not convince parents to purchase and use booster seats; however, the combination of education with installation significantly increased booster seat use in this population.     

Marijuana Use and Prior Injury among Injured Problem Drinkers

OBJECTIVES: The purpose of this paper is to better understand marijuana use among injured problem drinkers in the emergency department (ED). The specific objectives are: 1) to assess the prevalence of marijuana use; 2) to identify factors associated with marijuana use; 3) to determine whether prior injury is associated with marijuana use; and 4) to determine whether marijuana-using problem drinkers want to change behaviors. METHODS: The authors conducted a post-hoc analysis on data obtained prospectively. Subjects had injury and problem drinking: either measurable alcohol level (blood alcohol concentration, BAC), report of drinking, or an Alcohol Use Disorders Identification Test (AUDIT) score of > or =8. The study was conducted on weekend nights; 3,776 injured ED patients were screened, 383 refused, 578 were enrolled, and 433 had complete data. RESULTS: Of the 433 subjects, 48.3% reported using marijuana in the three months prior. Marijuana-using problem drinkers had more hazardous drinking, higher AUDIT scores (14.0 vs. 11.4, p < 0.001), and higher risk-taking scores (12.4 vs. 10.1, p < 0.001). More used other drugs (69.7% vs. 30.3%, p < 0.001). In regression analyses, marijuana use remained an independent predictor of prior injury (OR = 2.16, 95% CI = 1.25 to 3.75), particularly prior alcohol-related (OR = 2.26, 95% CI = 1.45 to 3.53) and motor-vehicle-related (OR = 1.69, 95% CI = 1.03 to 2.79) injury. Readiness-to-change scores were similar (4.14 vs. 4.22, p = 0.21) between users and nonusers. CONCLUSIONS: Marijuana use among injured problem drinkers is prevalent. Their risk of prior injury is increased. Counseling for alcohol and injury should address marijuana use.     

Conjoint Smoking and Drinking: A Case for Dual-substance Intervention among Young Emergency Department Patients

OBJECTIVES: To better understand conjoint smoking and drinking among young adult emergency department (ED) patients, the purposes of this investigation were: 1) to assess the prevalence of conjoint use; 2) to determine the factors associated with conjoint alcohol use and smoking; and 3) to address the implications for future ED-based investigation of dual-substance intervention. METHODS: Data for this investigation were obtained from a battery of questionnaires administered to the routine-care patients during an alcohol screening in the ED, which was part of a larger alcohol intervention study. RESULTS: Study findings revealed that a majority of patients with self-reported alcohol-related problems were smokers. In fact, drinkers who smoked were likely to be pack-a-day smokers. Among the study sample, being female, having low education levels (e.g., high school education or less), having some emotional problems, and currently using marijuana were risk factors for conjoint smoking and drinking. CONCLUSIONS: Conjoint users were identifiable through brief screening. Given the prevalence of conjoint smoking and alcohol use among the ED sample and a specific set of risk factors, tailored intervention for alcohol and nicotine dependence may be an important and opportunistic clinical ED service.     

Development and Implementation of an Emergency Practitioner–Performed Brief Intervention for Hazardous and Harmful Drinkers in the Emergency Department

Objectives: 1) To develop and teach a brief intervention (BI) for “hazardous and harmful” (HH) drinkers in the emergency department (ED); 2) to determine whether emergency practitioners (EPs) (faculty, residents, and physician associates) can demonstrate proficiency in the intervention; and 3) to determine whether it is feasible for EPs to perform the BI during routine clinical care. Methods: The Brief Negotiation Interview (BNI) was developed for a population of HH drinkers. EPs working in an urban, teaching hospital were trained during two‐hour skills‐based sessions. They were then tested for adherence to and competence with the BNI protocol using standardized patient scenarios and a checklist of critical components of the BNI. Finally, the EPs performed the BNI as part of routine ED clinical care in the context of a randomized controlled trial to test the efficacy of BI on patient outcomes. Results: The BNI was developed, modified, and finalized in a manual, based on pilot testing. Eleven training sessions with 58 EPs were conducted from March 2002 to August 2003. Ninety‐one percent (53/58) of the trained EPs passed the proficiency examination; 96% passed after remediation. Two EPs left prior to remediation. Subsequently, 247 BNIs were performed by 47 EPs. The mean (± standard deviation) number of BNIs per EP was 5.28 (± 4.91; range 0–28). The mean duration of the BNI was 7.75 minutes (± 3.18; range 4–24). Conclusions: A BNI for HH drinkers can be successfully developed for EPs. EPs can demonstrate proficiency in performing the BNI in routine ED clinical practice.     

Emergency clinician‐delivered screening and intervention for high‐risk alcohol use: A qualitative analysis

Objectives: To evaluate qualitative feedback from patients who received opportunistic screening and brief intervention for harmful alcohol use during an ED attendance; to evaluate emergency staff attitudes to performing alcohol screening and delivering opportunistic brief intervention; and to document process issues associated with the introduction of routine clinician‐initiated opportunistic screening and training and administration of brief intervention. Methods: Structured and semi‐structured interviews with emergency staff and recipients of brief intervention. Results: Sixty‐nine patients were interviewed 3 months after an ED attendance where they received emergency clinician‐delivered brief intervention for high‐risk alcohol use. Twenty‐two (32%; 95% CI 21–43%) reported a positive effect of brief intervention on thoughts or behaviour, but 29% (95% CI 18–40%) felt the intervention was not relevant for them or could not recall it. Four people (6%; 95% CI 1–12%) felt confronted or embarrassed, and 17 (25%; 95% CI 15–36%) felt timing or delivery could be improved. Staff had a positive attitude to delivering brief intervention, but nominated lack of time as the main barrier. Fourteen of 15 staff felt brief intervention should become routine in emergency care. Conclusion: Emergency clinicians can be trained to provide brief intervention for high‐risk alcohol in an ED. The use of emergency clinician brief intervention is acceptable to most staff and patients.     

Alcohol Use among Subcritically Injured Emergency Department Patients

Objectives: To determine the incidence of alcohol use in subcritically injured patients presenting to the ED, by using a saliva alcohol test (SAT) at ED triage during the ED initial assessment; to compare the incidence of alcohol use revealed by the SAT with documentation of alcohol use by ED nurses and emergency physicians (EPs) blinded to the SAT results; and to describe the demographics of the SAT-positive, subcritically injured population.
Methods: A blinded, prospective, observational evaluation of ED patients presenting with subcritical injuries was performed. The patients were tested for alcohol use with an SAT, and a subsequent record review was conducted for extraction of demographic data and evidence of documentation of alcohol use by ED nurses and EPs blinded to the SAT results.
Results: During the study. 791 subcritically injured patients had SATs performed. Twenty-one percent of these patients were found to be alcohol-positive by SAT. Either the ED nurse or the EP documented a clinical impression of alcohol use for 52% of the SAT-positive patients. There were higher SAT-positive rates among men (24%), victims of assault (47%), and patients arriving at night (41%).
Conclusions: While the SAT identified 21% of the subcritically injured patient population as alcohol-positive, ED nurse and EP documentation did not identify half of these alcohol-positive patients. Many of these patients may be at risk for additional injuries related to their drinking behavior.     

Use, Understanding, and Beliefs about Complementary and Alternative Medicines among Emergency Department Patients

OBJECTIVES: To describe the extent of complementary and alternative medicine (CAM) use among emergency department (ED) patients, to evaluate patients' understanding of CAMs, and to determine gender differences in beliefs about CAMs. METHODS: This study was a convenience sampling of patients seen in an urban ED. Patient demographics were recorded. A questionnaire was administered that assessed patients' knowledge and use of CAMs. Patients were also asked about their beliefs on safety, medication interactions, and conveying information about these substances to their physicians. RESULTS: A total of 350 ED patients were included in the study; 87% had heard of at least one of the CAMs. There was no difference between genders or races concerning knowledge about CAMs. The most commonly known CAMs were ginseng (75%), ginkgo biloba (55%), eucalyptus (58%), and St. John's wort (57%). Forty-three percent of the responders had used CAMs at some time and 24% were presently using CAMs. The most commonly used CAMs were ginseng (13%), St. John's wort (6%), and ginkgo biloba (9%). All CAMs were considered to be safe by 16% of the patients. Only 67% would tell their doctors they were using CAMs. Females were more likely than males to believe that CAMs do not interact with other medications (15% vs 7%, difference 8%, 95% CI = 2% to 15%). CONCLUSIONS: Complementary and alternative medicines are familiar to most patients and used by many of them. Despite this, a large percentage of patients would not tell their physicians about their use of alternative medications. Emergency medicine providers should be aware of the commonly used CAMs, and questions about their use should be routinely included in ED exams.     

The Clinical Impact of Health Behaviors on Emergency Department Visits

Modifiable health behaviors are an important cause of visits to emergency departments (EDs). Substance use, unsafe sexual behavior, interpersonal violence, unintentional injury, and other risky behaviors account for a large proportion of ED volume, as well as up to 40% of all deaths in the United States. While emergency physicians commonly treat the illnesses and injuries caused by these behaviors, additional opportunities exist to screen, intervene, refer, and initiate treatment for patients with these health risks. This article reviews the epidemiology and clinical impact of risky health behaviors on ED visits and suggests strategies for creating a research agenda in these areas.     

The National Emergency Department Safety Study: Study Rationale and Design

The significance of medical errors is widely appreciated. Given the frequency and significance of errors in medicine, it is important to learn how to reduce their frequency; however, the identification of factors that increase the likelihood of errors poses a considerable challenge. The National Emergency Department Safety Study (NEDSS) sought to characterize organizational- and clinician-associated factors related to the likelihood of errors occurring in emergency departments (EDs). NEDSS was a large multicenter study coordinated by the Emergency Medicine Network (EMNet; www.emnet-usa.org ). It was designed to determine if reports by ED personnel about safety processes are significantly correlated with the actual occurrence of errors in EDs. If so, staff reports can be used to accurately identify processes for safety improvements. Staff perceptions were assessed with a survey, while errors were assessed through chart review of three conditions: acute myocardial infarction, acute asthma, and reductions of dislocations under procedural sedation. NEDSS also examined the characteristics of EDs associated with the occurrence of errors. NEDSS is the first comprehensive national study of the frequency and types of medical errors in EDs. This article describes the methods used to develop and implement the study.     

Past-Year Intentional and Unintentional Injury Among Teens Treated in an Inner-City Emergency Department

An inner-city emergency department (ED) visit provides an opportunity for contact with high-risk adolescents to promote injury prevention. Objectives: To identify the prevalence of injuries sustained over the past year by teens presenting to an inner-city ED, and to identify factors associated with recent injury to inform future ED-based injury prevention initiatives. Methods: Over 1 year, 7 days a week, from 1:00–11:00 p.m., patients aged 14–18 years presenting to the ED participated in a survey regarding past-year risk behaviors and injuries. Results: Of the entire group of teens presenting to the ED (n = 1128) who completed the survey (83.8% response rate), 46% were male, and 58% were African-American. Past-year injuries were reported by 768 (68.1%) of the teens; 475 (61.8%) of those reported an unintentional injury and 293 (38.1%) reported an intentional injury. One-third of all youth seeking care reported a past-year sports-related injury (34.5%) or an injury related to driving or riding in a car (12.3%), and 8.2% reported a gun-related injury. Logistic regression found that binge drinking (adjusted odds ratio [AOR] 1.95) and illicit weapon carrying (AOR 2.31) predicted a past-year intentional injury. African-American youth (AOR 0.56) and those receiving public assistance (AOR 0.73) were less likely to report past-year unintentional injuries. Conclusions: Adolescents seeking care in an inner-city ED, regardless of the reason for seeking care, report an elevated prevalence of recent injury, including violence. Future injury screening and prevention efforts should consider universal screening of all youth seeking ED care.     

Impact of Ambulance Transportation on Resource Use in the Emergency Department

OBJECTIVE: To determine how ambulance transportation is associated with resource use in the emergency department (ED). METHODS: A retrospective administrative database review of patient visits to a Montreal tertiary care hospital ED in one year (April 2000-March 2001). Measures of resource use included ED length of stay, admission to the hospital, and whether consultations and radiology/imaging tests (excluding plain-film x-rays) were ordered from the ED. RESULTS: During the study period, 39,674 patients made 59,142 visits to the ED. Ambulance transportation was used for 15.6% of these ED visits. Compared with non-ambulance visits, ambulance visits were more likely to be made by older patients (mean age: 68 vs. 47 years), to be made by females (59% vs. 55%), to have a greater triage urgency score (mean on 1-5 scale, with 1 most urgent: 2.7 vs. 3.9), and to occur after office hours, 5 PM to 9 AM (47% vs. 43%). Ambulance visits were also more likely than non-ambulance visits to result in: a longer length of stay (mean: 13.3 hours [95% CI = 13.0 to 13.6] vs. 5.9 [95% CI = 5.8 to 6.0]), hospital admission (40% vs. 10%) (odds ratio [OR]: 5.94 [95% CI = 5.59 to 6.33]), consultations (56% vs. 20%) (OR: 5.15 [95% = 4.86 to 5.45]), and radiology/imaging tests (20% vs. 12%) (OR: 1.93 [95% CI = 1.81 to 2.07]). In multivariate models that adjusted for the effects of age, gender, triage urgency, and temporal factors, ambulance transportation maintained its association with greater resource use. CONCLUSIONS: This preliminary study indicates that patients arriving at the ED by ambulance use significantly more resources than their walk-in counterparts.     

Smoking Habits of Emergency Department Patients: An Opportunity for Disease Prevention

Objective: To determine smoking habits, levels of addiction, readiness to quit, and access to primary care among ED patients.
Methods: A questionnaire was administered prospectively to all non-critical adult patients who presented to one university hospital ED during 23 randomly selected four-hour time blocks; 336 (89%) of 376 eligible patients responded. Self-reported smoking was validated by carbon monoxide breath testing in a pilot sample of 49 patients.
Results: The study patients were mostly young (mean age = 35 ± 15 years), female (59%), white (62%), and high school-educated (73%). Of the 336 ED patients, 41% were current smokers (95% CI = 0.36–0.46); 42% of these were "moderately" to "very highly" dependent on nicotine (Fagerstrom Test for Nicotine Dependence > 4). Of those who smoked, 68% stated they wanted to quit, and 49% wanted to quit within the month. Fifty-six percent of all those who smoked stated that they had never been told to quit smoking by any physician. Thirty-five percent of the ED sample (118 patients) relied upon EDs for most or all of their routine, primary health care; 55% (95% CI = 0.46–0.64) of these patients were current smokers.
Conclusions: The prevalence rates of smoking and nicotine addiction among ED patients are high. Almost half of ED smokers are ready to quit, but most state they have never been told by a physician to do so. Finally, a large proportion of ED smokers receive their primary care in EDs. Therefore, the ED may be an underused setting for smoking cessation intervention.     

A Multicenter Study of Depression among Emergency Department Patients

Objectives: The authors sought to determine the 12‐month prevalence of depression among emergency department (ED) patients using a single‐question screen. Methods: This cross‐sectional study was conducted in four Boston‐area EDs. For two 24‐hour periods, consecutive patients aged 18 years or older were interviewed, excluding those who were severely ill, potential victims of sexual assault, or emotionally disturbed. During the interview, patients were asked “Have you had any of the following problems during the past 12 months?” Patients answered “yes” or “no” to a list of health problems that included depression. In a validation study, the authors found that this simple approach correlated well with results from the validated Center for Epidemiologic Studies Depression Scale. Results: Of 752 eligible patients, 539 (72%) were interviewed. Of these patients, 30% (95% confidence interval = 26% to 34%) reported depression within the past 12 months. Compared with their nondepressed counterparts, depressed patients were more likely middle‐aged, female, and of lower socioeconomic status. Depressed patients were more likely to be smokers and to report a diagnosis of asthma or arthritis/rheumatism. In a multivariate analysis, factors that were independently associated with depression were lower level of education, smoking, and self‐reported anxiety, chronic fatigue, and back problems. Conclusions: A 30% 12‐month prevalence of depression among ED patients was found. Depressed patients had a distinct sociodemographic and health profile. In the future, awareness of risk factors for depression in the ED setting and use of simple screening instruments could aid in the recognition of depression, with subsequent referral to mental health services.     

When the Safety Net Is Unsafe Real-time Assessment of the Overcrowded Emergency Department

Although much work has been done evaluating causes for increased demand for emergency department (ED) services, few ways are available to help determine that an individual ED is overcrowded. Four calculations are proposed using real-time data for accurately diagnosing an ED with potential for failing both as a safety net and as a source for quality health care. The bed ratio (BR) accounts for the number of patients in relation to the available treatment spaces. The BR is obtained by adding the current number of ED patients to the predicted arrivals minus the predicted departures and dividing the result by the total number of treatment spaces. The acuity ratio (AR) measures the relative burden of illness in the ED. The AR is the average triage category of all patients in the ED. The provider ratio (PR) determines the volume of patients that can be evaluated and treated by the physician providers. The PR is found by dividing the arrivals per hour by the sum of the average patients per hour usually disposed for each provider on duty. From these ratios, the demand value (DV) is calculated, which gives an overall measure of current demand. The DV is found by taking the sum of the BR and PR and multiplying by the AR. A DV of more than 7 should initiate a specific assessment of the individual ratios in order to accurately diagnose the problem and institute action. Based on the values, predetermined processes can be instituted to help remedy the overcrowded situation. Trended over time, the ratios can provide the data needed for better resource assessment, planning, and allocation.     

Sledding Injuries in Patients Presenting to the Emergency Department in a Northern City

OBJECTIVES: Sledding is a common recreational activity in northern communities. The objective of this study was to examine the frequency and nature of sledding injuries (SIs) in patients presenting to emergency departments (EDs). METHODS: The data were derived from a cohort of patients treated at all five EDs in an urban Canadian health region over a two-year period. Following chart review, consenting patients were interviewed by telephone about their sledding activities and the circumstances surrounding the injury. RESULTS: Three hundred twenty-eight patients were correctly coded as having SIs, with 212 patients (65%) reached during the follow-up survey. The median age of those with SIs was 12 years (IQR = 8, 21), and 206 (59%) were male. Injury rates peaked in the 10--14-year age group (87/100,000) for boys and in the 5--9-year age group (75/100,000) for girls. Most patients stated they were drivers (75%), fewer than half were thrown from the sled (42%), and fewer than half (44%) were sledding on community-designated sledding hills at the time of injury. Injuries to the lower extremity (32%), upper extremity (31%), and head (13%) were most common. Thirty-seven (11%) patients with SIs were admitted to hospital vs 4% of patients with other sports/recreation injuries (p < 0.05). CONCLUSIONS: Sledding injuries are common and potentially serious wintertime injuries in northern communities, involving primarily younger patients, with a large pre-adolescent group. However, older sledders (>20 years) have poorer outcomes (hospitalization, lost time from work/school) than their younger counterparts. The SIs treated in the ED appear to lead to hospitalization more frequently than other types of sport/recreation injury, and injury prevention strategies appear warranted.