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Studies

On this page you can find various studies developed by Military Health System. Please scroll down or use the search box to find specific studies.

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We found 213 items resulting from your search.

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Race/ethnicity and HAART initiation in a military HIV infected cohort.

Study

Abstract

BACKGROUND: Prior studies have suggested that HAART initiation may vary by race/ethnicity. Utilizing the U.S. military healthcare system, which minimizes confounding from healthcare access, we analyzed whether timing of HAART initiation and the appropriate initiation of primary prophylaxis among those at high risk for pneumocystis pneumonia (PCP) varies by race/ethnicity. METHODS: Participants in the U.S. Military HIV Natural History Study from 1998-2009 who had not initiated HAART before 1998 and who, based on DHHS guidelines, had a definite indication for HAART (CD4 <200, AIDS event or severe symptoms; Group A), an indication to consider HAART (including CD4 <350; Group B) or electively started HAART (CD4 >350; Group C) were analyzed for factors associated with HAART initiation. In a secondary analysis, participants were also evaluated for factors associated with starting primary PCP prophylaxis within four months of a CD4 count <200 cells/mm3. Multiple logistic regression was used to compare those who started vs. delayed therapy; comparisons were expressed as odds ratios (OR). RESULTS: 1262 participants were evaluated in the analysis of HAART initiation (A = 208, B = 637, C = 479 [62 participants were evaluated in both Groups A and B]; 94% male, 46% African American, 40% Caucasian). Race/ethnicity was not associated with HAART initiation in Groups A or B. In Group C, African American race/ethnicity was associated with lower odds of initiating HAART (OR 0.49, p = 0.04). Race and ethnicity were also not associated with the initiation of primary PCP prophylaxis among the 408 participants who were at risk. CONCLUSIONS: No disparities in the initiation of HAART or primary PCP prophylaxis according to race/ethnicity were seen among those with an indication for therapy. Among those electively initiating HAART at the highest CD4 cell counts, African American race/ethnicity was associated with decreased odds of starting. This suggests that free healthcare can potentially overcome some of the observed disparities in HIV care, but that unmeasured factors may contribute to differences in elective care decisions.

  • Publication Status: Published
  • Sponsoring Organization: Defense Health Agency (formerly TRICARE Management Activity)
  • Sponsoring Office: Uniformed Services University of Health Sciences
  • Congressionally Mandated: No
  • Funding Source: Agency, office or organization under authority of the Sec Def (not affiliated to Army, Navy, or Air Force)
  • Release Date/Publication: January 01, 2014
  • Citation: Johnson EN, Roediger MP, Landrum ML, Crum-Cianflone NF, Weintrob AC, Ganesan A, et. al. Race/ethnicity and HAART initiation in a military HIV infected cohort. AIDS Res Ther. 2014 Jan 24;11(1):10.

Absolute and relative morbidity burdens attributable to various illnesses and injuries, non-service member beneficiaries of the Military Health System, 2013.

Study

Abstract

Individuals who are eligible for care through the Military Health System (MHS) (“beneficiaries”) include family members of active component service members, family members of National Guard and Reserve service members, and retirees and eligible family members of retirees. In 2013, there were approximately 1.98 million active component family members, 550,000 Guard/Reserve family members, and 5.29 million retirees and their family members eligible for medical care from the MHS. Some beneficiaries of MHS care do not enroll in the healthcare plans provided by the MHS (e.g., if they use insurance through their own employment); also, some of those who are enrolled do not seek care through the MHS. MHS beneficiaries may receive care from resources provided directly by the Uniformed Services (i.e., military medical treatment facilities [MTFs]) or from civilian healthcare resources (i.e., outsourced [purchased] care) that supplement direct military medical care. In 2013, approximately 6.8 million individuals utilized inpatient or outpatient services provided by the MHS. In the population of MHS care recipients in 2013, there were more females (58%) than males (42%) and more infants, children, and adolescents (<20 years: n=1.9 million; 28.9%) and more seniors (65 years or older: n=1.8 million; 26.1%) than younger (20–44 years: n=1.4 million; 20.1%) or older (45–64 years: n=1.7 million; 24.9%) adults. Since 1998, the MSMR has published annual summaries of the numbers and rates of hospitalizations and outpatient medical encounters to assess the healthcare “burdens” of 16 categories of illnesses and injuries among active component military members. This year, for the first time and using similar methodology, this report quantifies the illnesses and injuries among non-service members who received care in the MHS in 2013. Healthcare burden estimates are stratified by direct versus outsourced care and across four age groups of healthcare recipients.

  • Publication Status: Published
  • Sponsoring Organization: Defense Health Agency (formerly TRICARE Management Activity)
  • Sponsoring Office: Armed Forces Health Surveillance Center
  • Congressionally Mandated: No
  • Funding Source: Defense Health Agency (formerly TRICARE Management Activity)
  • Release Date/Publication: April 01, 2014
  • Citation: AFHSC. Absolute and relative morbidity burdens attributable to various illnesses and injuries, non-service member beneficiaries of the Military Health System, 2013. MSMR. 2014 Apr;21(4):23-30; discussion 30.

Diagnostic and psychosocial differences in psychiatrically hospitalized military service members with single versus multiple suicide attempts.

Study

Abstract

INTRODUCTION: Individuals with multiple versus single suicide attempts present a more severe clinical picture and may be at greater risk for suicide. Yet group differences within military samples have been vastly understudied. PURPOSE: The objective is to determine demographic, diagnostic, and psychosocial differences, based on suicide attempt status, among military inpatients admitted for suicide-related events. METHOD: A retrospective chart review design was used with a total of 423 randomly selected medical records of psychiatric admissions to a military hospital from 2001 to 2006. RESULTS: Chi-square analyses indicated that individuals with multiple versus single suicide attempts were significantly more likely to have documented childhood sexual abuse (p =.025); problem substance use (p=.001); mood disorder diagnosis (p=.005); substance disorder diagnosis (p =.050); personality disorder not otherwise specified diagnosis (p =.018); and Axis II traits or diagnosis (p=.038) when compared to those with a single attempt history. Logistic regression analyses showed that males with multiple suicide attempts were more likely to have problem substance use (p=.005) and a mood disorder diagnosis (p =.002), while females with a multiple attempt history were more likely to have a history of childhood sexual (p =.027). DISCUSSION: Clinically meaningful differences among military inpatients with single versus multiple suicide attempts exist. Targeted Department of Defense suicide prevention and intervention efforts that address the unique needs of these two specific at-risk subgroups are additionally needed.

  • Publication Status: Published
  • Sponsoring Organization: Defense Health Agency (formerly TRICARE Management Activity)
  • Sponsoring Office: Uniformed Services University of Health Sciences
  • Congressionally Mandated: No
  • Funding Source: Defense Health Agency (formerly TRICARE Management Activity)
  • Release Date/Publication: April 01, 2014
  • Citation: Kochanski-Ruscio KM, et.al., Diagnostic and psychosocial differences in psychiatrically hospitalized military service members with single versus multiple suicide attempts. Compr Psychiatry. 2014 Apr;55(3):450-6.

Military healthcare providers reporting of adverse events following immunizations to the vaccine adverse event reporting system.

Study

Abstract

OBJECTIVES: We studied military health care provider (HCP) practices regarding reporting of adverse events following immunization (AEFI). METHODS: A convenience sample of HCP was surveyed to assess familiarity with Vaccine Adverse Event Reporting System (VAERS), AEFI they were likely to report, methods used and preferred for reporting, and perceived barriers to reporting. We analyzed factors associated with HCP reporting AEFI to VAERS. RESULTS: A total of 547 surveys were distributed with 487 completed and returned for an 89% response rate. The percentage of HCP aware of VAERS (54%) varied by occupation. 47% of respondents identified knowledge of at least one AEFI with only 34% of these indicating that they had ever reported to VAERS. More serious events were more likely to be reported. Factors associated with HCP reporting AEFIs in bivariate analysis included HCP familiarity with filing a paper VAERS report, HCP familiarity with filing an electronic VAERS report, HCP familiarity with VAERS, and time spent on immunization tasks. In a multivariable analysis, only HCP familiarity with filing a paper VAERS report was statistically significant (Odds ratio = 115.3; p < 0.001). CONCLUSIONS: Specific educational interventions targeted to military HCP likely to see AEFIs but not currently filing VAERS reports may improve vaccine safety reporting practices.

  • Publication Status: Published
  • Sponsoring Organization: Defense Health Agency (formerly TRICARE Management Activity)
  • Sponsoring Office: Walter Reed National Military Medical Center
  • Congressionally Mandated: No
  • Funding Source:
  • Release Date/Publication: April 01, 2014
  • Citation: Li R, McNeil MM, Pickering S, Pemberton MR, Duran LL, Collins LC, Nelson MR, Engler RJ. Military healthcare providers reporting of adverse events following immunizations to the vaccine adverse event reporting system. Mil Med. 2014 Apr;179(4):435-41

Lower obesity rate during residence at high altitude among a military population with frequent migration: a quasi experimental model for investigating spatial causation.

Study

Abstract

We sought to evaluate whether residence at high altitude is associated with the development of obesity among those at increased risk of becoming obese. Obesity, a leading global health priority, is often refractory to care. A potentially novel intervention is hypoxia, which has demonstrated positive long-term metabolic effects in rats. Whether or not high altitude residence confers benefit in humans, however, remains unknown. Using a quasi-experimental, retrospective study design, we observed all outpatient medical encounters for overweight active component enlisted service members in the U.S. Army or Air Force from January 2006 to December 2012 who were stationed in the United States. We compared high altitude (>1.96 kilometers above sea level) duty assignment with low altitude (<0.98 kilometers). The outcome of interest was obesity related ICD-9 codes (278.00-01, V85.3x-V85.54) by Cox regression. We found service members had a lower hazard ratio (HR) of incident obesity diagnosis if stationed at high altitude as compared to low altitude (HR 0.59, 95% confidence interval [CI] 0.54-0.65; p<0.001). Using geographic distribution of obesity prevalence among civilians throughout the U.S. as a covariate (as measured by the Centers for Disease Control and Prevention and the REGARDS study) also predicted obesity onset among service members. In conclusion, high altitude residence predicts lower rates of new obesity diagnoses among overweight service members in the U.S. Army and Air Force. Future studies should assign exposure using randomization, clarify the mechanism(s) of this relationship, and assess the net balance of harms and benefits of high altitude on obesity prevention.

  • Publication Status: Published
  • Sponsoring Organization: Defense Health Agency (formerly TRICARE Management Activity)
  • Sponsoring Office: Uniformed Services University of Health Sciences/Armed Forces Health Surveillance Center
  • Congressionally Mandated: No
  • Funding Source: Defense Health Agency (formerly TRICARE Management Activity)
  • Release Date/Publication: April 01, 2014
  • Citation: Voss JD, Allison DB, Webber BJ, Otto JL, Clark LL. Lower obesity rate during residence at high altitude among a military population with frequent migration: a quasi experimental model for investigating spatial causation. PLoS One. 2014 Apr 16;9(4):e93493

Variation in rates of autoimmune thyroid disease by race/ethnicity in US military personnel.

Study

Abstract

The relationship between Graves disease and race/ethnicity is undefined. Based on thyroid antibody prevalence, the rates of Hashimoto thyroiditis may be highest in whites and lowest in blacks. Using a large and comprehensive data set of medical diagnoses for all US active duty service personnel, we calculated age-standardized incidence rates for Graves disease and Hashimoto thyroiditis by race/ethnicity. Compared with whites, the IRR for Graves disease was significantly elevated in black women (IRR, 1.92; 95% CI, 1.56-2.37) and men (IRR, 2.53; 95% CI, 2.01-3.18) and Asian/Pacific Islander women (IRR, 1.78; 95% CI, 1.20-2.66) and men (IRR, 3.36; 95% CI, 2.57-4.40) (Figure). In contrast, Hashimoto thyroiditis incidence was highest in whites and lowest in black women (IRR, 0.33; 95% CI, 0.21-0.51) and men (IRR, 0.22; 95% CI, 0.11-0.47) and Asian/Pacific Islander women (IRR, 0.31; 95% CI, 0.17-0.56) and men (IRR, 0.23; 95% CI, 0.07-0.72). The differences in incidence by race/ethnicity may be due to different environmental exposures, genetics, or a combination of both. Our results are not easily attributable to the strongest known environmental risk factor, cigarette smoking.

  • Publication Status: Published
  • Sponsoring Organization: Undetermined
  • Sponsoring Office:
  • Congressionally Mandated: No
  • Funding Source: Government, academic, or industry source other than Federal Government
  • Release Date/Publication: April 01, 2014
  • Citation: McLeod DS, Caturegli P, Cooper DS, Matos PG, Hutfless S. Variation in rates of autoimmune thyroid disease by race/ethnicity in US military personnel. JAMA. 2014 Apr 16;311(15):1563-5.

Energy drinks: review of performance benefits, health concerns, and use by military personnel.

Study

Abstract

Energy drinks (EDs) are highly caffeinated beverages usually containing herbal ingredients promoted and consumed for purported improvements in attention and athletic performance. The popularity of EDs among adolescents and young adults has steadily increased for more than a decade. Reports suggest U.S. military populations consume EDs with greater frequency as compared to age-matched civilian populations. This article reviews the literature and outlines the current body of evidence evaluating the human performance benefits and potential harms associated with ED use.

  • Publication Status: Published
  • Sponsoring Organization: Defense Health Agency (formerly TRICARE Management Activity)
  • Sponsoring Office: Uniformed Services University of Health Sciences
  • Congressionally Mandated: No
  • Funding Source:
  • Release Date/Publication: April 01, 2014
  • Citation: Johnson LA, Foster D, McDowell JC. Energy drinks: review of performance benefits, health concerns, and use by military personnel. Mil Med. 2014 Apr;179(4):375-80.

Occupational driving as a risk factor for low back pain in active-duty military service members.

Study

Abstract

BACKGROUND CONTEXT: Although occupational driving has been associated with low back pain, little has been reported on the incidence rates for this disorder. PURPOSE: To determine the incidence rate and demographic risk factors of low back pain in an ethnically diverse and physically active population of US military vehicle operators. STUDY DESIGN/SETTING: Retrospective database analysis. PATIENT SAMPLE: All active-duty military service members between 1998 and 2006. OUTCOME MEASURES: Low back pain requiring visit to a health-care provider. METHODS: A query was performed using the US Defense Medical Epidemiology Database for the International Classification of Diseases, Ninth Revision, Clinical Modification code for low back pain (724.20). Multivariate Poisson regression analysis was used to estimate the rate of low back pain among military vehicle operators and control subjects per 1,000 person-years, while controlling for sex, race, rank, service, age, and marital status. RESULTS: A total of 8,447,167 person-years of data were investigated. The overall unadjusted low back pain incidence rate for military members whose occupation is vehicle operator was 54.2 per 1,000 person-years. Compared with service members with other occupations, motor vehicle operators had a significantly increased adjusted incidence rate ratio (IRR) for low back pain of 1.15 (95% confidence interval [CI] 1.13-1.17). Female motor vehicle operators, compared with males, had a significantly increased adjusted IRR for low back pain of 1.45 (95% CI 1.39-1.52). With senior enlisted as the referent category, the junior enlisted rank group of motor vehicle operators had a significantly increased adjusted IRR for low back pain: 1.60 (95% CI 1.52-1.70). Compared with Marine service members, those motor vehicle operators in both the Army, 2.74 (95% CI 2.60-2.89), and the Air Force, 1.98 (95% CI 1.84-2.14), had a significantly increased adjusted IRR for low back pain. The adjusted IRRs for the less than 20-year and more than 40-year age groups, compared with the 30- to 39-year age group, were 1.24 (1.15-1.36) and 1.23 (1.10-1.38), respectively. CONCLUSIONS: Motor vehicle operators have a small but statistically significantly increased rate of low back pain compared with matched control population.

  • Publication Status: Published
  • Sponsoring Organization: Army
  • Sponsoring Office:
  • Congressionally Mandated: No
  • Funding Source:
  • Release Date/Publication: April 01, 2014
  • Citation: Knox JB, Orchowski JR, Scher DL, Owens BD, Burks R, Belmont PJ Jr. Occupational driving as a risk factor for low back pain in active-duty military service members. Spine J. 2014 Apr;14(4):592-7.

Influence of the severity and location of bodily injuries on post-concussive and combat stress symptom reporting after military-related concurrent mild traumatic brain injuries and polytrauma.

Study

Abstract

Traumatic brain injuries (TBI) sustained in combat frequently co-occur with significant bodily injuries. Intuitively, more extensive bodily injuries might be associated with increased symptom reporting. In 2012, however, French et al. demonstrated an inverse relation between bodily injury severity and symptom reporting. This study expands on that work by examining the influence of location and severity of bodily injuries on symptom reporting after mild TBI. Participants were 579 US military service members who sustained an uncomplicated mild TBI with concurrent bodily injuries and who were evaluated at two military medical centers. Bodily injury severity was quantified using a modified Injury Severity Score (ISSmod). Participants completed the Neurobehavioral Symptom Inventory (NSI) and the Posttraumatic Stress Disorder Checklist (PCL-C), on average, 2.5 months post-injury. There was a significant negative association between ISSmod scores and NSI (r=-0.267, p<0.001) and PCL-C (r=-0.273, p<0.001) total scores. Using linear regression to examine the relation between symptom reporting and injury severity across the six ISS body regions, three body regions were significant predictors of the NSI total score (face; p<0.001; abdomen; p=0.003; extremities; p<0.001) and accounted for 9.3% of the variance (p<0.001). For the PCL-C, two body regions were significant predictors of the PCL-C total score (face; p<0.001; extremities; p<0.001) and accounted for 10.5% of the variance. There was an inverse relation between bodily injury severity and symptom reporting in this sample. Hypothesized explanations include underreporting of symptoms, increased peer support, disruption of fear conditioning because of acute morphine use, or delayed expression of symptoms.

  • Publication Status: Published
  • Sponsoring Organization: Defense Health Agency (formerly TRICARE Management Activity)
  • Sponsoring Office: Defense and Veterans Brain Injury Center
  • Congressionally Mandated: No
  • Funding Source: Defense Health Agency (formerly TRICARE Management Activity)
  • Release Date/Publication: October 01, 2014
  • Citation: French LM, et.al . Influence of the severity and location of bodily injuries on post-concussive and combat stress symptom reporting after military-related concurrent mild traumatic brain injuries and polytrauma. J Neurotrauma. 2014 Oct 1;31(19):1607-16.

The Millennium Cohort Family Study: a prospective evaluation of the health and well-being of military service members and their families.

Study

Abstract

The need to understand the impact of war on military families has never been greater than during the past decade, with more than three million military spouses and children affected by deployments to Operations Iraqi Freedom and Enduring Freedom. Understanding the impact of the recent conflicts on families is a national priority, however, most studies have examined spouses and children individually, rather than concurrently as families. The Department of Defense (DoD) has recently initiated the largest study of military families in US military history (the Millennium Cohort Family Study), which includes dyads of military service members and their spouses (n > 10,000). This study includes US military families across the globe with planned follow-up for 21+ years to evaluate the impact of military experiences on families, including both during and after military service time. This review provides a comprehensive description of this landmark study including details on the research objectives, methodology, survey instrument, ancillary data sets, and analytic plans. The Millennium Cohort Family Study offers a unique opportunity to define the challenges that military families experience, and to advance the understanding of protective and vulnerability factors for designing training and treatment programs that will benefit military families today and into the future.

  • Publication Status: Published
  • Sponsoring Organization: Navy
  • Sponsoring Office:
  • Congressionally Mandated: No
  • Funding Source:
  • Release Date/Publication: October 01, 2014
  • Citation: Crum-Cianflone NF, Fairbank JA, Marmar CR, Schlenger W. The Millennium Cohort Family Study: a prospective evaluation of the health and well-being of military service members and their families. Int J Methods Psychiatr Res. 2014 Sep;23(3):320-30.

Use and Abuse of Prescribed Opioids, Central Nervous System Depressants, and Stimulants Among U.S. Active Duty Military Personnel in FY 2010

Study

Abstract

OBJECTIVES: This study establishes rates of use/abuse of Schedule II-IV prescription medications in U.S. active duty military personnel, and characterizes correlates of such use/abuse. METHODS: All active duty personnel serving for 12 months during fiscal year 2010 were included. Data were obtained from medical and pharmacy claims and drug screening results. Logistic regression models were used to examine predictors of drug use, along with bivariate analyses to compare abuse of prescribed and illegal drugs. RESULTS: Nearly one-third of active duty service members received at least one prescription for opioids, central nervous system depressants, or stimulants, with 26.4% having received at least one prescription for opioids. About 0.7%, 1.4%, and 0.6% of the total force received >90-day prescriptions for opioids, central nervous system depressants, or stimulants, respectively. Battlefield injury, receipt of psychotropic medications, and substance abuse adverse events were predictive of >90-day supply of opioids. About 0.7% of the total force had documented known drug abuse for prescribed drugs compared to 0.4% for illegal drug abuse. CONCLUSIONS: We recommend systematic monitoring of prescriptions for controlled substances which may carry serious consequences, evaluation of the impact of controlled substances on military readiness, and examination of the rationale for prescribing controlled drugs.

  • Publication Status: Published
  • Sponsoring Organization: Defense Health Agency (formerly TRICARE Management Activity)
  • Sponsoring Office: Defense Health Agency (formerly TRICARE Management Activity)
  • Congressionally Mandated: No
  • Funding Source:
  • Release Date/Publication: October 01, 2014
  • Citation: Jeffery DD, May L, Luckey B, Balison BM, Klette KL. Use and Abuse of Prescribed Opioids, Central Nervous System Depressants, and Stimulants Among U.S. Active Duty Military Personnel in FY 2010. Mil Med. 2014 Oct;179(10):1141-8

Dwell time and psychological screening outcomes among military service members with multiple combat deployments.

Study

Abstract

Recent studies have found that longer dwell times, or the period of time between deployments, may be protective against combat-related psychological outcomes. The purpose of this study was to examine the association between dwell time and psychological morbidity, while accounting for combat exposure. U.S. Marines with two combat deployments between 2005 and 2008 were identified from electronic deployment records. Those who screened positive for post-traumatic stress disorder and depression, and who were referred for mental health services were identified from the Post-Deployment Health Assessment. For the final study sample of 3,512 Marines, dwell time was calculated as time between deployments, and was analyzed as a ratio over length of first deployment. After adjustment for all covariates, there was an interaction (p = 0.01) between dwell time and combat exposure on mental health referral outcome. For personnel with maximum reported combat exposure, longer dwell times were associated with a 49% to 92% reduced odds of mental health referral. Longer dwell times may be protective against combat-related psychological outcomes. Because multiple deployments are likely to be the norm in future military operations, regulating dwell time, particularly for those with greater risk of combat exposure, should continue to be explored.

  • Publication Status: Published
  • Sponsoring Organization: Navy
  • Sponsoring Office: Naval Health Research Center
  • Congressionally Mandated: No
  • Funding Source: Navy
  • Release Date/Publication: April 01, 2014
  • Citation: MacGregor AJ, Heltemes KJ, Clouser MC, Han PP, Galarneau MR. Dwell time and psychological screening outcomes among military service members with multiple combat deployments. Mil Med. 2014 Apr;179(4):381-7.

Implementing collaborative primary care for depression and posttraumatic stress disorder: Design and sample for a randomized trial in the U.S. military health system

Study

Abstract

BACKGROUND: War-related trauma, posttraumatic stress disorder (PTSD), depression and suicide are common in US military members. Often, those affected do not seek treatment due to stigma and barriers to care. When care is sought, it often fails to meet quality standards. A randomized trial is assessing whether collaborative primary care improves quality and outcomes of PTSD and depression care in the US military health system. OBJECTIVE: Describe the design and sample for a randomized effectiveness trial of collaborative care for PTSD and depression in military members attending primary care. METHODS: The STEPS-UP Trial (Stepped Enhancement of PTSD Services Using Primary Care) is a 6 installation (18 clinic) randomized effectiveness trial in the US military health system. Study rationale, design, enrollment and sample characteristics are summarized. Findings Military members attending primary care were referred to care management with suspected PTSD, depression or both were recruited for the trial (2,592) and 1,041 gave permission to contact for research participation. Of those, 666 (64%) met eligibility criteria, completed baseline assessments, and were randomized to 12months of usual collaborative primary care versus STEPS-UP collaborative care. Implementation was locally managed for usual collaborative care and centrally managed for STEPS-UP. Research reassessments occurred at 3-, 6-, and 12-months. Baseline characteristics were similar across the two intervention groups. CONCLUSIONS: STEPS-UP will be the first large scale randomized effectiveness trial completed in the US military health system, assessing how an implementation model affects collaborative care impact on mental health outcomes. It promises lessons for health system change.

  • Publication Status: Published
  • Sponsoring Organization: Defense Health Agency (formerly TRICARE Management Activity)
  • Sponsoring Office: Uniformed Services University of Health Sciences
  • Congressionally Mandated: No
  • Funding Source:
  • Release Date/Publication: October 01, 2014
  • Citation: Engel CC, et.al. Implementing collaborative primary care for depression and posttraumatic stress disorder: Design and sample for a randomized trial in the U.S. military health system. Contemp Clin Trials. 2014 Oct 10

A Multisite Study of the Relationships between Blast Exposures and Symptom Reporting in a Post-Deployment Active Duty Military Population with Mild Traumatic Brain Injury

Study

Abstract

Explosive devices have been the most frequent cause of traumatic brain injury (TBI) among deployed contemporary U.S. service members. The purpose of this study was to examine the influence of previous cumulative blast exposures (that did or did not result in TBI) on later post-concussion and post-traumatic symptom reporting after sustaining a mild TBI (MTBI). Participants were 573 service members who sustained MTBI divided into four groups by number of blast exposures (1, 2, 3, and 4-10) and a nonblast control group. Post-concussion symptoms were measured using the Neurobehavioral Symptom Inventory (NSI) and post-traumatic stress disorder (PTSD) symptoms using the Post-traumatic Checklist-Civilian version (PCL-C). Results show groups significantly differed on total NSI scores (p<0.001), where symptom endorsement increased as number of reported blast exposures increased. Total NSI scores were significantly higher for the 3- and 4-10 blast groups compared with the 1- and 2-blast groups with effect sizes ranging from small to moderate (d=0.31 to 0.63). After controlling for PTSD symptoms using the PCL-C total score, NSI total score differences remained between the 4-10-blast group and the 1- and 2-blast groups, but were less pronounced (d=0.35 and d=0.24, respectively). Analyses of NSI subscale scores using PCL-C scores as a covariate revealed significant between-blast group differences on cognitive, sensory, and somatic, but not affective symptoms. Regression analyses revealed that cumulative blast exposures accounted for a small but significant amount of the variance in total NSI scores (4.8%; p=0.009) and total PCL-C scores (2.3%; p<0.001). Among service members exposed to blast, post-concussion symptom reporting increased as a function of cumulative blast exposures. Future research will need to determine the relationship between cumulative blast exposures, symptom reporting, and neuropathological changes

  • Publication Status: Published
  • Sponsoring Organization: Defense Health Agency (formerly TRICARE Management Activity)
  • Sponsoring Office: Defense and Veterans Brain Injury Center
  • Congressionally Mandated: No
  • Funding Source: Defense Health Agency (formerly TRICARE Management Activity)
  • Release Date/Publication: October 01, 2014
  • Citation: Reid MW, et.al., A Multisite Study of the Relationships between Blast Exposures and Symptom Reporting in a Post-Deployment Active Duty Military Population with Mild Traumatic Brain Injury. J Neurotrauma. 2014 Dec 1;31(23):1899-906.

Female military medical school graduates entering surgical internships: are we keeping up with national trends?

Study

Abstract

BACKGROUND: Ratios of women graduating from the only US military medical school and entering surgical internships were reviewed and compared with national trends. METHODS: Data were obtained from the Uniformed Services University of the Health Sciences graduation announcements from 2002 to 2012. RESULTS: There were 1,771 graduates from 2002 to 2012, with 508 female (29%) and 1,263 male (71%) graduates. Female graduates increased over time (21% to 39%; P = .014). Female general surgery interns increased from 3.9% to 39% (P = .025). Female overall surgical subspecialty interns increased from 20% in 2002 to 36% in 2012 (P = .046). Women were represented well in obstetrics (57%), urology (44%), and otolaryngology (31%), but not in neurosurgery, orthopedics, and ophthalmology (0% to 20%). CONCLUSIONS: The sex disparity between military and civilian medical students occurs before entry. Once in medical school, women are just as likely to enter general surgery or surgical subspecialty as their male counterparts. Increased ratio of women in the class is unlikely to lead to a shortfall except in specific subspecialties.

  • Publication Status: Published
  • Sponsoring Organization: Defense Health Agency (formerly TRICARE Management Activity)
  • Sponsoring Office: Walter Reed National Military Medical Center/Uniformed Services University of Health Sciences
  • Congressionally Mandated: No
  • Funding Source: Defense Health Agency (formerly TRICARE Management Activity)
  • Release Date/Publication: October 01, 2014
  • Citation: Vertrees A, Laferriere N, Elster E, Shriver CD, Rich NM. Female military medical school graduates entering surgical internships: are we keeping up with national trends? Am J Surg. 2014 Oct;208(4):550-5.
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