The Air Force Health Study (AFHS) is a longitudinal, prospective epidemiologic study of more than 2,700 men followed for approximately 20 years. This cohort participated in up to six intensive physical examinations with high rates of compliance. In addition to a complete record of clinical measurements and observations collected at these exams, serum and other biological samples were obtained and preserved. Extensive questionnaires addressing health, lifestyle, and socioeconomic status were administered during each exam, and other information was obtained about the participants' employment, families and offspring, and potential sources of environmental exposures. While the study was completed in 2006, the extensive health data linked to several types of longitudinally collected biologic specimens - some 91,000 serum, whole blood, urine, semen, and adipose tissue specimens - remain a resource for additional research. The AFHS assets are exceptional in the sheer multitude and range of types of information available for each participant. The longitudinal nature of the AFHS - with its extended follow-up, high rates of retention, and repeat biological samples - provides a valuable opportunity for research beyond the original aims of the study. Currently, the Institute of Medicine is the custodian of these assets. The Air Force Health Study Assets Research Program outlines the feasibility and advisability of maintaining the biospecimens based on interest generated from the general scientific community and results of pilot projects and other research projects using the AFHS assets. According to this report, sustaining access to the AFHS biospecimens and data benefits the veterans community and the public at large, who will gain from the information derived from studies of the assets. . This report discusses the scientific value of the AFHS data and biospecimens and the lessons learned in managing access to the assets.
The Air Force Health Study (AFHS) is a longitudinal, prospective epidemiologic study of more than 2,700 men followed for approximately 20 years. This cohort participated in up to six intensive physical examinations with high rates of compliance. In addition to a complete record of clinical measurements and observations collected at these exams, serum and other biological samples were obtained and preserved. Extensive questionnaires addressing health, lifestyle, and socioeconomic status were administered during each exam, and other information was obtained about the participants' employment, families and offspring, and potential sources of environmental exposures. While the study was completed in 2006, the extensive health data linked to several types of longitudinally collected biologic specimens - some 91,000 serum, whole blood, urine, semen, and adipose tissue specimens - remain a resource for additional research. The AFHS assets are exceptional in the sheer multitude and range of types of information available for each participant. The longitudinal nature of the AFHS - with its extended follow-up, high rates of retention, and repeat biological samples - provides a valuable opportunity for research beyond the original aims of the study. Currently, the Institute of Medicine is the custodian of these assets. The Air Force Health Study Assets Research Program outlines the feasibility and advisability of maintaining the biospecimens based on interest generated from the general scientific community and results of pilot projects and other research projects using the AFHS assets. According to this report, sustaining access to the AFHS biospecimens and data benefits the veterans community and the public at large, who will gain from the information derived from studies of the assets. . This report discusses the scientific value of the AFHS data and biospecimens and the lessons learned in managing access to the assets.
The Vietnam War was fought in a jungle environment that provided cover to the enemy and made battlefield observations difficult, so military strategists used herbicides to remove foliage along key roads and waterways, defoliate areas surrounding enemy bases and supply and communications routes, and improve visibility in heavily canopied forests. The last three decades have seen an ongoing debate about the effects of this military use of herbicides and the potential adverse long-term health effects on those who may have been exposed to these herbicides. In response to these concerns, the Air Force Health Study (AFHS) was created to investigate the potential relationship between the herbicides used and the health problems of those exposed. Disposition of the Air Force Health Study assesses the scientific merit of the AFHS operations and procedures, and makes recommendations for improvement.
From 1962 to 1971, the U.S. military sprayed herbicides over Vietnam to strip the thick jungle canopy that could conceal opposition forces, to destroy crops that those forces might depend on, and to clear tall grasses and bushes from the perimeters of US base camps and outlying fire-support bases. Mixtures of 2,4-dichlorophenoxyacetic acid (2,4-D), 2,4,5-trichlorophenoxyacetic acid (2,4,5-T), picloram, and cacodylic acid made up the bulk of the herbicides sprayed. The main chemical mixture sprayed was Agent Orange, a 50:50 mixture of 2,4-D and 2,4,5-T. At the time of the spraying, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), the most toxic form of dioxin, was an unintended contaminant generated during the production of 2,4,5-T and so was present in Agent Orange and some other formulations sprayed in Vietnam. Because of complaints from returning Vietnam veterans about their own health and that of their children combined with emerging toxicologic evidence of adverse effects of phenoxy herbicides and TCDD, the National Academies of Sciences, Engineering, and Medicine was asked to perform a comprehensive evaluation of scientific and medical information regarding the health effects of exposure to Agent Orange, other herbicides used in Vietnam, and the various components of those herbicides, including TCDD. Updated evaluations were conducted every two years to review newly available literature and draw conclusions from the overall evidence. Veterans and Agent Orange: Update 11 (2018) examines peer-reviewed scientific reports concerning associations between various health outcomes and exposure to TCDD and other chemicals in the herbicides used in Vietnam that were published between September 30, 2014, and December 31, 2017, and integrates this information with the previously established evidence database.
Military operations produce a great deal of trash in an environment where standard waste management practices may be subordinated to more pressing concerns. As a result, ground forces have long relied on incineration in open-air pits as a means of getting rid of refuse. Concerns over possible adverse effects of exposure to smoke from trash burning in the theater were first expressed in the wake of the 1990â€"1991 Gulf War and stimulated a series of studies that indicated that exposures to smoke from oil-well fires and from other combustion sources, including waste burning, were stressors for troops. In January 2013, Congress directed the Department of Veterans Affairs (VA) to establish and maintain a registry for service members who may have been exposed to toxic airborne chemicals and fumes generated by open burn pits. Assessment of the Department of Veterans Affairs Airborne Hazards and Open Burn Pit Registry analyzes the initial months of data collected by the registry and offers recommendations on ways to improve the instrument and best use the information it collects. This report assesses the effectiveness of the VA's information gathering efforts and provides recommendations for addressing the future medical needs of the affected groups, and provides recommendations on collecting, maintaining, and monitoring information collected by the VA's Airborne Hazards and Open Burn Pit Registry.
Many veterans returning from the conflicts in Iraq and Afghanistan have health problems they believe are related to their exposure to the smoke from the burning of waste in open-air "burn pits" on military bases. Particular controversy surrounds the burn pit used to dispose of solid waste at Joint Base Balad in Iraq, which burned up to 200 tons of waste per day in 2007. The Department of Veterans Affairs asked the IOM to form a committee to determine the long-term health effects from exposure to these burn pits. Insufficient evidence prevented the IOM committee from developing firm conclusions. This report, therefore, recommends that, along with more efficient data-gathering methods, a study be conducted that would evaluate the health status of service members from their time of deployment over many years to determine their incidence of chronic diseases.
Approximately 4 million U.S. service members took part in the wars in Afghanistan and Iraq. Shortly after troops started returning from their deployments, some active-duty service members and veterans began experiencing mental health problems. Given the stressors associated with war, it is not surprising that some service members developed such mental health conditions as posttraumatic stress disorder, depression, and substance use disorder. Subsequent epidemiologic studies conducted on military and veteran populations that served in the operations in Afghanistan and Iraq provided scientific evidence that those who fought were in fact being diagnosed with mental illnesses and experiencing mental healthâ€"related outcomesâ€"in particular, suicideâ€"at a higher rate than the general population. This report provides a comprehensive assessment of the quality, capacity, and access to mental health care services for veterans who served in the Armed Forces in Operation Enduring Freedom/Operation Iraqi Freedom/Operation New Dawn. It includes an analysis of not only the quality and capacity of mental health care services within the Department of Veterans Affairs, but also barriers faced by patients in utilizing those services.
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