Nhan T. Tran
Johns Hopkins University
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Featured researches published by Nhan T. Tran.
BMJ | 2012
Dan Chisholm; Huseyin Naci; Adnan A. Hyder; Nhan T. Tran; Margaret M. Peden
Objective To identify and estimate the population costs and effects of a selected set of enforcement strategies for reducing the burden of road traffic injuries in developing countries. Design Cost effectiveness analysis based on an epidemiological model. Setting Two epidemiologically defined World Health Organization sub-regions of the world: countries in sub-Saharan Africa with very high adult and high child mortality (AfrE); and countries in South East Asia with high adult and high child mortality (SearD). Interventions Enforcement of speed limits via mobile speed cameras; drink-drive legislation and enforcement via breath testing campaigns; legislation and primary enforcement of seatbelt use in cars; legislation and enforcement of helmet use by motorcyclists; legislation and enforcement of helmet use by bicyclists. Main outcome measures Patterns of injury were fitted to a state transition model to determine the expected population level effects of intervention over a 10 year period, which were expressed in disability adjusted life years (DALYs) averted. Costs were expressed in international dollars (
Bulletin of The World Health Organization | 2008
Adnan A. Hyder; Maria W. Merritt; Joseph Ali; Nhan T. Tran; Kulanthayan Subramaniam; Tasleem Akhtar
Int) for the year 2005. Results The single most cost effective strategy varies by sub-region, but a combined intervention strategy that simultaneously enforces multiple road safety laws produces the most health gain for a given amount of investment. For example, the combined enforcement of speed limits, drink-driving laws, and motorcycle helmet use saves one DALY for a cost of
Traffic Injury Prevention | 2012
Abdulgafoor M. Bachani; Nhan T. Tran; Socheata Sann; Michael F. Ballesteros; Chandara Gnim; Amra Ou; Panhavuth Sem; Xiaoyu Nie; Adnan A. Hyder
Int1000–3000 in the two sub-regions considered. Conclusions The potential impact of available road safety measures is inextricably bound by the underlying distribution of road traffic injuries across different road user groups and risk factors. Combined enforcement strategies are expected to represent the most efficient way to reduce the burden of road traffic injuries, because they benefit from considerable synergies on the cost side while generating greater overall health gains.
Health Policy | 2009
Nhan T. Tran; Adnan A. Hyder; Subramaniam Kulanthayan; Shivani Singh; Radin Sohadi Radin Umar
Scientific progress is a significant basis for change in public-health policy and practice, but the field also invests in value-laden concepts and responds daily to sociopolitical, cultural and evaluative concerns. The concepts that drive much of public-health practice are shaped by the collective and individual mores that define social systems. This paper seeks to describe the ethics processes in play when public-health mechanisms are established in low- and middle-income countries, by focusing on two cases where ethics played a crucial role in producing positive institutional change in public-health policy. First, we introduce an overview of the relationship between ethics and public health; second, we provide a conceptual framework for the ethical analysis of health system events, noting how this approach might enhance the power of existing frameworks; and third, we demonstrate the interplay of these frameworks through the analysis of a programme to enhance road safety in Malaysia and an initiative to establish a national ethics committee in Pakistan. We conclude that, while ethics are gradually being integrated into public-health policy decisions in many developing health systems, ethical analysis is often implicit and undervalued. This paper highlights the need to analyse public-health decision-making from an ethical perspective.
Traffic Injury Prevention | 2012
Nhan T. Tran; Abdulgafoor M. Bachani; V. Cuong Pham; Jeffrey C. Lunnen; Youngji Jo; Jonathon Passmore; Phuong N. Nguyen; Adnan A. Hyder
Objective: Road traffic injuries (RTIs) are a leading cause of disability and fatality globally. Motorcycle-related injuries, mainly head injuries, and related deaths and disabilities are a significant contributor to the burden of disease in low- and middle-income countries (LMICs). Helmets have been proven to be an effective way to reduce the risk of head injury. As motorcycle use continually increases in Cambodia, head injuries and related deaths and disabilities are expected to rise. This article aims to assess the current status of helmet use in Cambodia, as well as the knowledge, attitudes, and practices among motorcyclists, in order to assist with better planning and implementation of injury prevention strategies. Methods: Two separate methodologies were employed for this study. Helmet observations were conducted in Phnom Penh, Kandal, Kampong Speu, Siem Reap, and Kampong Cham to assess the current status of helmet use during the day and at night. Roadside knowledge, attitudes, and practice (KAP) interviews were also conducted in Phnom Penh, Kandal, and Kampong Speu to determine the prevailing beliefs around helmet use in Cambodia. Results: Based on observations, the proportion of helmet wearing across all study sites was 25 percent at night and 43 percent during the day among all motorcyclists. The observed proportion was up to 10 times higher among drivers compared to passengers. The top 3 reasons for always wearing a helmet were lifesaving potential, legal duty, and police fines. Almost 60 percent of respondents said that their use or nonuse of a helmet depended on where they were driving. Helmet quality, price, style, and color were important factors influencing the decision to purchase a helmet. Conclusions: A paradox appears to exist in Cambodia; though awareness of the benefits of wearing a helmet is high, actual helmet use remains low in the country. Daytime usage is higher than nighttime, and these proportions are significantly higher among drivers compared to passengers. There is a continuing need to improve the proportion of all-day helmet wearing, especially at night and among motorcycle passengers in Cambodia.
Health Policy | 2015
Abdulgafoor M. Bachani; Nhan T. Tran; Shreya Agrawal; Adnan A. Hyder
Road traffic injuries (RTIs) are a growing public health problem that must be addressed through evidence-based interventions including policy-level changes such as the enactment of legislation to mandate specific behaviors and practices. Policy makers need to be engaged in road safety research to ensure that road safety policies are grounded in scientific evidence. This paper examines the strategies used to engage policy makers and other stakeholder groups and discusses the challenges that result from a multi-disciplinary, inter-sectoral collaboration. A framework for engaging policy makers in research was developed and applied to describe an example of collective road safety research in Malaysia. Key components of this framework include readiness, assessment, planning, implementation/evaluation, and policy development/sustainability. The case study of a collaborative intervention trial for the prevention of motorcycle crashes and deaths in Malaysia serves as a model for policy engagement by road safety and injury researchers. The analytic description of this research process in Malaysia demonstrates that the framework, through its five stages, can be used as a tool to guide the integration of needed research evidence into policy for road safety and injury prevention.
Injury Prevention | 2008
Nhan T. Tran; Adnan A. Hyder
Objective: Injuries are among the 10 leading causes of death for all ages in Vietnam, and road traffic fatalities account for approximately half of those deaths. Despite having what is considered to be one of the most stringent alcohol legislations in the region, alcohol involvement in road traffic crashes remains high. This study aims to illustrate the knowledge, attitudes, and practices around alcohol use and drinking and driving by age and sex in 3 provinces in Vietnam. Methods: This study was conducted between January and February 2011, surveying randomly selected road users over the age of 17 years at gas stations in 3 provinces: Ha Nam, Ninh Binh, and Bac Giang, Vietnam. Data were collected for one week at each gas station. A knowledge, attitudes, and practices (KAPs) survey was administered in 7 time blocks of 90 min throughout the day, from 07:30 am to 9:30 pm. Results: There were a total of 633 respondents almost evenly divided among the 3 provinces. Males accounted for 69.1 percent of respondents; the majority were 36 years of age or younger. Despite the belief that drinking and driving will increase the risk of a crash, a significant proportion of respondents (44.9%) reported drinking and driving; 56.7 percent admitted to drinking and driving within the last month. Drinking and driving was more common among males, with approximately 60.2 percent indicating a history of drinking and driving. This proportion was particularly high among males aged 17 to 26 (71.4%). It was found that preferred alternatives to drinking and driving when available were leaving with a nondrinker (42%), resting until “feeling conscious” (23%), and drinking less (20%). Conclusions: This study shows that, in general, alcohol use and drinking and driving remain a problem in Vietnam, a major concern given that the country is rapidly motorizing and likewise increasing the likelihood of road traffic crashes in the absence of effective interventions. To target drinking and driving in Vietnam we call for a multifaceted approach, including social marketing and public education campaigns, enhanced enforcement, and programs that either limit the number of drinks to drivers or young individuals or those that provide alternatives to drinking and driving.
International journal of child and adolescent health | 2012
Adnan A. Hyder; Nhan T. Tran; Abdulgafoor M. Bachani; David Bishai; Margie Peden
Unintentional injuries are estimated to claim the lives of more than 875,000 children each year; millions more live with long-term consequences and permanent disabilities. The epidemiology of injuries has become clearer in the past decade. NGOs need to work in concert with each other to address the global burden of injuries by sharing information. Several NGOs have heeded this call, and the field has seen the emergence of global organizations aimed at highlighting the burden of injuries and streamlining injury prevention activities worldwide. Safe Kids Worldwide Inc. (SKWW) is a global network in 16 countries whose mission is to address the burden of injuries in children under 15 by harnessing the potential of local NGOs. An organizational assessment was conducted of SKWW which included structured organizational assessment, functional organizational mapping and contextual analysis that allowed for an in-depth examination of the strengths and challenges of SKWWs injury prevention approach. Over one year, primary and secondary data were collected and analyzed from headquarters and individual country offices. SKWW appears to be an effective model and has experienced a strong momentum and growth over the last two decades. Global NGOs that address the burden of injuries should start by defining a clear and universal strategic goal, build on local successes, maximize their strengths, and create avenues for stronger country engagement.
Archive | 2015
Adnan A. Hyder; Nhan T. Tran; Abdulgafoor M. Bachani; David Bishai; Margie Peden
The burden of injury related mortality and morbidity is currently alarming—with more than 5 million deaths annually.1 Moreover, it is increasing worldwide—especially among low and middle income countries, in vulnerable populations, and in the younger age groups.2 This epidemiological challenge raises an urgent need to develop, strengthen, and maintain capacity for injury prevention research and practice. Over the next decade, this increasing injury burden will create a huge demand for professionals trained in inter-disciplinary sciences from all fields and sectors: health, transport, education, government, law, and communications. Equally important, it will require institutions to prepare themselves to respond to this emerging …
Bulletin of The World Health Organization | 2008
Adnan A. Hyder; Maria W. Merritt; Joseph Ali; Nhan T. Tran; Kulanthayan Subramaniam; Tasleem Akhtar