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https://www.readbyqxmd.com/read/28641683/a-review-of-general-aviation-safety-1984-2017
#1
Douglas D Boyd
General aviation includes all civilian aviation apart from operations involving paid passenger transport. Unfortunately, this category of aviation holds a lackluster safety record, accounting for 94% of civil aviation fatalities. In 2014, of 1143 general aviation accidents, 20% were fatal compared with 0 of 29 airline mishaps in the United States. Herein, research findings over the past 30 yr will be reviewed. Accident risk factors (e.g., adverse weather, geographical region, post-impact fire, gender differences) will be discussed...
July 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28640679/crash-fatality-rates-after-recreational-marijuana-legalization-in-washington-and-colorado
#2
Jayson D Aydelotte, Lawrence H Brown, Kevin M Luftman, Alexandra L Mardock, Pedro G R Teixeira, Ben Coopwood, Carlos V R Brown
OBJECTIVES: To evaluate motor vehicle crash fatality rates in the first 2 states with recreational marijuana legalization and compare them with motor vehicle crash fatality rates in similar states without recreational marijuana legalization. METHODS: We used the US Fatality Analysis Reporting System to determine the annual numbers of motor vehicle crash fatalities between 2009 and 2015 in Washington, Colorado, and 8 control states. We compared year-over-year changes in motor vehicle crash fatality rates (per billion vehicle miles traveled) before and after recreational marijuana legalization with a difference-in-differences approach that controlled for underlying time trends and state-specific population, economic, and traffic characteristics...
June 22, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28636489/evaluation-of-countermeasures-for-red-light-running-by-traffic-simulator-based-surrogate-safety-measures
#3
Changju Lee, Jaehyun Jason So, Jiaqi Ma
OBJECTIVE: The conflicts among motorists entering a signalized intersection with the red light indication have become a national safety issue. Because of its sensitivity, efforts have been made to investigate the possible causes and effectiveness of countermeasures by the comparison sites and/or before-and-after studies. Nevertheless, these approaches are ineffective when comparison sites cannot be found, or crash data sets are not readily available or not reliable for statistical analysis...
June 21, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28622934/selection-to-outsmart-the-germs-the-evolution-of-disease-recognition-and-social-cognition
#4
Sharon E Kessler, Tyler R Bonnell, Richard W Byrne, Colin A Chapman
The emergence of providing care to diseased conspecifics must have been a turning point during the evolution of hominin sociality. On a population level, care may have minimized the costs of socially transmitted diseases at a time of increasing social complexity, although individual care-givers probably incurred increased transmission risks. We propose that care-giving likely originated within kin networks, where the costs may have been balanced by fitness increases obtained through caring for ill kin. We test a novel hypothesis of hominin cognitive evolution in which disease may have selected for the cognitive ability to recognize when a conspecific is infected...
July 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28618353/another-look-at-the-safety-effects-of-horizontal-curvature-on-rural-two-lane-highways
#5
Taha Saleem, Bhagwant Persaud
Crash Modification Factors (CMFs) are used to represent the effects on crashes of changes to highway design elements and are usually obtained from observational studies based on reported crashes. The design element of interest for this paper is horizontal curvature on rural 2-lane highways. The data for this study came from the Washington State database in the Highway Safety Information System (HSIS). Crash prediction models are developed for curve sections on rural 2-lane highway and the tangent sections up- and down-stream of the curve sections...
June 12, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28613096/emergency-department-visits-by-pediatric-patients-sustained-as-a-passenger-on-a-motorcycle
#6
Allison Tadros, Stephanie Owen, Shelley M Hoffman, Stephen M Davis, Melinda J Sharon
OBJECTIVE: Currently only five out of the fifty states in the United States (U.S.) have laws restricting the age of passengers permitted to ride on a motorcycle. This study sought to characterize the visits by patients under the age of 16 to US emergency departments (ED) for injuries sustained as a passenger on a motorcycle. METHODS: In this retrospective cohort study, data were obtained from the Nationwide Emergency Department Sample (NEDS) for the years 2006 to 2011...
June 14, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28609379/pediatric-moped-related-injuries-in-the-u-s-from-2002-2014-age-related-comparisons-of-mechanisms-and-outcomes
#7
Nathaniel K Johnson, Brandon M Johnson, Gerene M Denning, Charles A Jennissen
INTRODUCTION: Mopeds are a popular means of transportation, especially in urban areas. However, few studies have investigated moped-related injuries in the United States. This study's goal was to compare the crash mechanisms and injuries suffered in moped-related crashes involving youth versus adults, as well as between younger and older children. METHODS: Descriptive and comparative analyses were performed using National Electronic Injury Surveillance System (NEISS) data and additional variables coded from injury narratives...
June 13, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28605807/visual-sensory-and-visual-cognitive-function-and-rate-of-crash-and-near-crash-involvement-among-older-drivers-using-naturalistic-driving-data
#8
Carrie Huisingh, Emily B Levitan, Marguerite R Irvin, Paul MacLennan, Virginia Wadley, Cynthia Owsley
Purpose: An innovative methodology using naturalistic driving data was used to examine the association between visual sensory and visual-cognitive function and rates of future crash or near-crash involvement among older drivers. Methods: The Strategic Highway Research Program (SHRP2) Naturalistic Driving Study was used for this prospective analysis. The sample consisted of N = 659 drivers aged ≥70 years and study participation lasted 1 or 2 years for most participants...
June 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28605422/risk-exposure-density-explains-mileage-bias-in-older-driver-crash-risk
#9
Jonathan J Rolison
Driver crash rates per mile indicate high crash risk in older age. A reliance on mileage alone may underestimate risk exposure of older drivers as they tend to avoid highways and travel more on non-freeways (e.g., urban roads) that present greater hazards. We introduce risk exposure density as an index of exposure that incorporates mileage, frequency of travel, and travel duration. Population-wide driver fatalities in the U.S. during 2002-2012 were assessed per driver age (16-20, 21-29, 30-39, 40-49, 50-59, 60-69, > 70 years) and gender...
June 9, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28604931/motor-vehicle-crash-risk-among-adolescents-and-young-adults-with-attention-deficit-hyperactivity-disorder
#10
Allison E Curry, Kristina B Metzger, Melissa R Pfeiffer, Michael R Elliott, Flaura K Winston, Thomas J Power
Importance: Attention-deficit/hyperactivity disorder (ADHD) often persists into adolescence, when motor vehicle crash risk peaks. We know little about when adolescents with ADHD get licensed and, once they do, the extent to which they have increased crash risk compared with adolescents without ADHD. Objectives: To examine the association between ADHD and both driver licensing and crash involvement and whether it varies by sex, licensing age, and/or being prescribed ADHD medication at licensure...
June 12, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28602178/differential-effects-of-the-glasgow-coma-scale-score-and-its-components-an-analysis-of-54-069-patients-with-traumatic-brain-injury
#11
Florence C M Reith, Hester F Lingsma, Belinda J Gabbe, Fiona E Lecky, Ian Roberts, Andrew I R Maas
INTRODUCTION: The Glasgow Coma Scale (GCS) is widely used in the assessment of clinical severity and prediction of outcome after traumatic brain injury (TBI). The sum score is frequently applied, but the differential influence of the components infrequently addressed. We aimed to investigate the contribution of the GCS components to the sum score, floor and ceiling effects of the components, and their prognostic effects. METHODS: Data on adult TBI patients were gathered from three data repositories: TARN (n=50,064), VSTR (n=14,062), and CRASH (n=9,941)...
June 1, 2017: Injury
https://www.readbyqxmd.com/read/28601747/road-traffic-crash-risk-associated-with-prescription-of-hydroxyzine-and-other-sedating-h1-antihistamines-a-responsibility-and-case-crossover-study
#12
Ludivine Orriols, Audrey Luxcey, Benjamin Contrand, Anne Bénard-Laribière, Antoine Pariente, Blandine Gadegbeku, Emmanuel Lagarde
BACKGROUND: H1 antihistamines differ from each other by their ability to cross the blood-brain barrier. The resulting sedating effect can be sought in therapy but may be a driving hazard. The aim of this study was to estimate the impact of sedating H1-antihistamines on the risk of road traffic crash, with a particular focus on hydroxyzine which is also indicated as an anxiolytic in France. METHODS: The study consisted in extracting and matching data from three French nationwide databases: the national healthcare insurance database, police reports and the police national database of injurious crashes...
June 8, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28601210/tranexamic-acid-use-in-prehospital-uncontrolled-hemorrhage
#13
REVIEW
Benjamin R Huebner, Warren C Dorlac, Chris Cribari
The use of tranexamic acid (TXA) in the treatment of trauma patients was relatively unexplored until the landmark Clinical Randomisation of an Antifibrinolytic in Significant Haemorrhage-2 (CRASH-2) trial in 2010 demonstrated a reduction in mortality with the use of TXA. Although this trial was a randomized, double-blinded, placebo-controlled study incorporating >20,000 patients, numerous limitations and weaknesses have been described. As a result, additional studies have followed, delineating the potential risks and benefits of TXA administration...
June 2017: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/28600988/angry-thoughts-in-spanish-drivers-and-their-relationship-with-crash-related-events-the-mediation-effect-of-aggressive-and-risky-driving
#14
David Herrero-Fernández, Sara Fonseca-Baeza
Several studies have related aggressive and risky driving behaviours to accidents. However, the cognitive processes associated with driving aggression have received very little attention in the scientific literature. With the aim of shedding light on this topic, the present research was carried out on a sample of 414 participants in order to validate the Driver's Angry Thoughts Questionnaire (DATQ) with a sample of Spanish drivers and to test the hypothesis of the mediation effect of aggressive and risky driving on the relationship between drivers' angry thoughts and crash-related events...
June 7, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28600579/road-crashes-in-older-persons-and-the-use-of-comorbidity-polypharmacy-score-in-an-asian-population
#15
Mui Teng Chua, Keshav Bhandari, Victor Yk Ong, Win Sen Kuan
INTRODUCTION: Age-related physiological changes predispose older road users to higher mortality from traffic crashes. We aimed to describe the injury epidemiology of these patients, and explore the association between the comorbidity polypharmacy score (CPS) and outcomes. MATERIALS AND METHODS: This retrospective study utilised data from the Trauma Registry in the National University Hospital, Singapore, between January 2011 and December 2014. Patients involved in traffic crashes aged 45 years and above with injury severity scores (ISS) of 9 and higher were included...
May 2017: Annals of the Academy of Medicine, Singapore
https://www.readbyqxmd.com/read/28599353/restricting-access-to-alcohol-and-public-health-evidence-from-electoral-dry-laws-in-brazil
#16
Marcos Y Nakaguma, Brandon J Restrepo
We analyze the impact of short-term alcohol bans on road traffic accidents, traffic injuries, and hospital admissions. We focus on the 2012 Municipal Elections in Brazil, during which 11 out of 27 states imposed on its 2,733 municipalities the decision to adopt alcohol bans. Using day-level data on municipalities, we find that alcohol bans caused substantial reductions in road crashes (19%), traffic injuries (43%), and traffic-related hospitalizations (17%). An analysis of traffic-related hospitalization costs allows us to estimate the lower bound of the negative externality associated with excessive alcohol consumption in this context, which reveals that electoral dry laws saved Brazil's public healthcare system $100,000 per day...
June 9, 2017: Health Economics
https://www.readbyqxmd.com/read/28596799/the-rate-of-success-of-the-conservative-management-of-liver-trauma-in-a-developing-country
#17
S Buci, M Torba, A Gjata, I Kajo, Gj Bushi, K Kagjini
BACKGROUND: The conservative treatment of liver trauma has made important progress over the last 10 years at the Trauma University Hospital in Tirana, Albania. The percentage of success was 58.7%. The aims of this study were to analyze the conservative treatment of liver trauma and to compare the results with those in the literature. METHODS: This study was conducted prospectively from January 2009 to December 2012. We analyzed 173 patients admitted to our hospital with liver trauma...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28595356/treatment-with-bupropion-and-varenicline-for-smoking-cessation-and-the-risk-of-acute-cardiovascular-events-and-injuries-a-swedish-case-crossover-study
#18
Joel Monárrez-Espino, Maria Rosaria Galanti, Jenny Hansson, Imre Janszky, Karin Söderberg, Jette Möller
Introduction: Bupropion and varenicline are non-nicotine medications used for smoking cessation that mitigate craving and withdrawal symptoms. We aim to investigate whether these drugs increase the risk of selected acute adverse outcomes when used in medical practice. Methods: Population-based case-crossover design using data from Swedish health and administrative registers. Adult individuals diagnosed with acute myocardial infarction, stroke, suicide, suicide attempt, fall injury, or that suffered a road traffic crash from 01...
June 8, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28594247/differences-in-the-kinematics-of-booster-seated-pediatric-occupants-using-two-different-car-seats
#19
O Juste-Lorente, M Maza, A I Lorente, F J Lopez-Valdes
OBJECTIVE: The objective of this paper is to compare the performance of forward-facing Child Restraint Systems (CRS) mounted on two different seats. METHODS: Two different ATD (Anthropomorphic Test Device) sizes (P3 and P6), using the same child restraint system (a non-ISOFIX high-back booster seat) were exposed to the ECE R44 regulatory deceleration pulse in a deceleration sled. Two different seats (seat A, seat B) were used. Three repetitions per ATD and mounting seat were done, resulting in a total of 12 sled crashes...
June 8, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28576419/crash-risk-analysis-during-fog-conditions-using-real-time-traffic-data
#20
Yina Wu, Mohamed Abdel-Aty, Jaeyoung Lee
This research investigates the changes of traffic characteristics and crash risks during fog conditions. Using real-time traffic flow and weather data at two regions in Florida, the traffic patterns at the fog duration were compared to the traffic patterns at the clear duration. It was found that the average 5-min speed and the average 5-min volume were prone to decreasing during fog. Based on previous studies, a "Crash Risk Increase Indicator (CRII)" was proposed to explore the differences of crash risk between fog and clear conditions...
May 30, 2017: Accident; Analysis and Prevention
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