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Post-Traumatic Stress Disorders: HELP
Articles by Steven G. Scott
Based on 6 articles published since 2010
(Why 6 articles?)

Between 2010 and 2020, Steven G. Scott wrote the following 6 articles about Stress Disorders, Post-Traumatic.
+ Citations + Abstracts
1 Article A Systems Science Approach to Understanding Polytrauma and Blast-Related Injury: Bayesian Network Model of Data From a Survey of the Florida National Guard. 2017

Toyinbo, Peter A / Vanderploeg, Rodney D / Belanger, Heather G / Spehar, Andrea M / Lapcevic, William A / Scott, Steven G. · ·Am J Epidemiol · Pubmed #27986702.

ABSTRACT: We sought to further define the epidemiology of the complex, multiple injuries collectively known as polytrauma/blast-related injury (PT/BRI). Using a systems science approach, we performed Bayesian network modeling to find the most accurate representation of the complex system of PT/BRI and identify key variables for understanding the subsequent effects of blast exposure in a sample of Florida National Guard members (1,443 deployed to Operation Enduring Freedom/Operation Iraqi Freedom and 1,655 not deployed) who completed an online survey during the period from 2009 to 2010. We found that postdeployment symptoms reported as present at the time of the survey were largely independent of deployment per se. Blast exposure, not mild traumatic brain injury (TBI), acted as the primary military deployment-related driver of PT/BRI symptoms. Blast exposure was indirectly linked to mild TBI via other deployment-related traumas and was a significant risk for a high level of posttraumatic stress disorder (PTSD) arousal symptoms. PTSD arousal symptoms and tinnitus were directly dependent upon blast exposure, with both acting as bridge symptoms to other postdeployment mental health and physical symptoms, respectively. Neurobehavioral or postconcussion-like symptoms had no significant dependence relationship with mild TBI, but they were synergistic with blast exposure in influencing PTSD arousal symptoms. A replication of this analysis using a larger PT/BRI database is warranted.

2 Article Suicidal Ideation among Florida National Guard Members: Combat Deployment and Non-Deployment Risk and Protective Factors. 2015

Vanderploeg, Rodney D / Nazem, Sarra / Brenner, Lisa A / Belanger, Heather G / Donnell, Alison J / Scott, Steven G. · ·Arch Suicide Res · Pubmed #25517207.

ABSTRACT: This study examined relationships among risk/protective factors and suicidal ideation (SI) in deployed and non-deployed National Guard members, particularly examining for possible differential effects of deployment on SI. A total of 3,098 Florida National Guard members completed an anonymous online survey that assessed variables associated with SI including demographics, current psychiatric diagnoses, and pre-, during, and post-deployment experiences. Those deployed had significantly higher rates of SI (5.5%) than those not deployed (3.0%; p < .001). In multivariate analyses, among those not deployed, SI was significantly associated with major depressive disorder (p < .001), posttraumatic stress disorder (PTSD) (p < .001), prior psychological trauma (p < .01), and heavy/hazardous alcohol consumption (p < .05). In contrast, in the deployed, only PTSD (p < .001) and deployment-related mild traumatic brain injury (p < .05) were independently associated with SI. Risk and protective factors differed by deployment status in National Guard members suggesting the possible need for cohort-specific treatment targets to minimize SI.

3 Article The structure of postconcussion symptoms on the Neurobehavioral Symptom Inventory: a comparison of alternative models. 2015

Vanderploeg, Rodney D / Silva, Marc A / Soble, Jason R / Curtiss, Glenn / Belanger, Heather G / Donnell, Alison J / Scott, Steven G. ·Mental Health and Behavioral Sciences Service (Drs Vanderploeg, Silva, Soble, Curtiss, Belanger, and Donnell), Health Services Research and Development (HSR&D)/Rehabilitation Research and Development (RR&D) Center of Excellence: Maximizing Rehabilitation Outcomes (Drs Vanderploeg, Belanger, and Scott), and Physical Medicine and Rehabilitation Service (Dr Scott), James A. Haley Veterans' Hospital, Tampa, Florida · Departments of Psychiatry and Behavioral Neurosciences (Drs Vanderploeg, Silva, Curtiss, and Belanger) and Psychology (Drs Vanderploeg and Belanger), University of South Florida, Tampa, Florida · and Defense and Veterans Brain Injury Center, Tampa, Florida (Drs Vanderploeg, Belanger, Donnell, and Scott). ·J Head Trauma Rehabil · Pubmed #24263177.

ABSTRACT: OBJECTIVE: To evaluate and compare the existing Neurobehavioral Symptom Inventory factor structure models to determine which model provides the best overall fit for postconcussion symptoms and determine which model is useful across different samples (eg, with and without mild traumatic brain injury [TBI] history). SETTING: N/A. PARTICIPANTS: A Florida National Guard sample (N = 3098) and a national Department of Veterans Affairs sample (N = 48,175). DESIGN: Retrospective structural equation modeling was used to compare 16 alternative factor structure models. First, these 16 possible models were examined separately in both samples. Then, to determine whether the same factor structures applied across subsamples within these samples, the models were compared for those deployed and those not deployed in the Florida National Guard sample and between those with TBI confirmed on clinical evaluation and those who were determined not to have sustained a TBI within the Department of Veterans Affairs sample. MAIN MEASURES: Neurobehavioral Symptom Inventory. RESULTS: A 4-factor model--vestibular, somatic, cognitive, and affective--had the best overall fit, after elimination of 2 items (ie, hearing problems and appetite disturbance), and was most applicable across samples. CONCLUSIONS: These findings extend the findings of Meterko et al to other samples. Because findings were consistent across sample and subsamples, the current findings are applicable to both Department of Veteran Affairs and Department of Defense postdeployment medical evaluation settings.

4 Article Normative Data for the Neurobehavioral Symptom Inventory (NSI) and post-concussion symptom profiles among TBI, PTSD, and nonclinical samples. 2014

Soble, Jason R / Silva, Marc A / Vanderploeg, Rodney D / Curtiss, Glenn / Belanger, Heather G / Donnell, Alison J / Scott, Steven G. ·a Mental Health and Behavioral Sciences Service , James A. Haley Veterans' Hospital , Tampa , FL , USA. ·Clin Neuropsychol · Pubmed #24625213.

ABSTRACT: The Neurobehavioral Symptom Inventory (NSI) is a self-report measure of symptoms commonly associated with Post-Concussion Syndrome (PCS) that may emerge after mild traumatic brain injury (mTBI). Despite frequent clinical use, no NSI norms have been developed. Thus, the main objective of this study was to establish NSI normative data using the four NSI factors (i.e., vestibular, somatic, cognitive, and affective) identified by Vanderploeg, Silva, et al. ( 2014 ) among nonclinical epidemiological samples of deployed and non-deployed Florida National Guard members as well as a reference sample of Guard members with combat-related mTBI. In addition, NSI subscale profile patterns were compared across four distinct subgroups (i.e., non-deployed-nonclinical, deployed-nonclinical, deployed-mTBI, and deployed-PTSD). The deployed-nonclinical group endorsed greater PCS symptom severity than the non-deployed group, and the mTBI group uniformly endorsed more symptoms than both nonclinical groups. However, the PTSD group endorsed higher symptom severity relative to the other three subgroups. As such, this highlights the non-specificity of PCS symptoms and suggests that PTSD is associated with higher symptom endorsement than mTBI.

5 Article Screening for postdeployment conditions: development and cross-validation of an embedded validity scale in the neurobehavioral symptom inventory. 2014

Vanderploeg, Rodney D / Cooper, Douglas B / Belanger, Heather G / Donnell, Alison J / Kennedy, Jan E / Hopewell, Clifford A / Scott, Steven G. ·Departments of Mental Health and Behavioral Sciences (Drs Vanderploeg, Belanger, and Donnell), and Physical Medicine and Rehabilitation (Dr Scott) and Health Services Research and Development (HSR&D)/Rehabilitation Research and Development (RR&D) Center of Excellence: Maximizing Rehabilitation Outcomes (Drs Vanderploeg, Belanger, and Scott), James A. Haley Veterans' Hospital, Defense and Veterans Brain Injury Center (Drs Vanderploeg, Belanger, Donnell, and Scott), and Department of Psychology (Drs Vanderploeg and Belanger) and Psychiatry and Neurosciences (Dr Vanderploeg), University of South Florida, Tampa, Florida · Defense and Veterans Brain Injury Center (Drs Cooper and Kennedy) and Neurology Service, Department of Medicine (Drs Cooper and Kennedy), San Antonio Military Medical Center, Fort Sam Houston, San Antonio, Texas · and Traumatic Brain Injury Clinic, Darnall Army Medical Center, Fort Hood, Killeen, Texas (Dr Hopewell). ·J Head Trauma Rehabil · Pubmed #23474880.

ABSTRACT: OBJECTIVE: To develop and cross-validate internal validity scales for the Neurobehavioral Symptom Inventory (NSI). PARTICIPANTS: Four existing data sets were used: (1) outpatient clinical traumatic brain injury (TBI)/neurorehabilitation database from a military site (n = 403), (2) National Department of Veterans Affairs TBI evaluation database (n = 48 175), (3) Florida National Guard nonclinical TBI survey database (n = 3098), and (4) a cross-validation outpatient clinical TBI/neurorehabilitation database combined across 2 military medical centers (n = 206). RESEARCH DESIGN: Secondary analysis of existing cohort data to develop (study 1) and cross-validate (study 2) internal validity scales for the NSI. MAIN MEASURES: The NSI, Mild Brain Injury Atypical Symptoms, and Personality Assessment Inventory scores. RESULTS: Study 1: Three NSI validity scales were developed, composed of 5 unusual items (Negative Impression Management [NIM5]), 6 low-frequency items (LOW6), and the combination of 10 nonoverlapping items (Validity-10). Cut scores maximizing sensitivity and specificity on these measures were determined, using a Mild Brain Injury Atypical Symptoms score of 8 or more as the criterion for invalidity. Study 2: The same validity scale cut scores again resulted in the highest classification accuracy and optimal balance between sensitivity and specificity in the cross-validation sample, using a Personality Assessment Inventory Negative Impression Management scale with a T score of 75 or higher as the criterion for invalidity. CONCLUSIONS: The NSI is widely used in the Department of Defense and Veterans Affairs as a symptom-severity assessment following TBI, but is subject to symptom overreporting or exaggeration. This study developed embedded NSI validity scales to facilitate the detection of invalid response styles. The NSI Validity-10 scale appears to hold considerable promise for validity assessment when the NSI is used as a population-screening tool.

6 Article Health outcomes associated with military deployment: mild traumatic brain injury, blast, trauma, and combat associations in the Florida National Guard. 2012

Vanderploeg, Rodney D / Belanger, Heather G / Horner, Ronnie D / Spehar, Andrea M / Powell-Cope, Gail / Luther, Stephen L / Scott, Steven G. ·Mental Health and Behavioral Sciences - Psychology Service, James A. Haley Veterans' Hospital, Tampa, FL 33612, USA. Rodney.Vanderploeg@va.gov ·Arch Phys Med Rehabil · Pubmed #22705240.

ABSTRACT: OBJECTIVES: To determine the association between specific military deployment experiences and immediate and longer-term physical and mental health effects, as well as examine the effects of multiple deployment-related traumatic brain injuries (TBIs) on health outcomes. DESIGN: Online survey of cross-sectional cohort. Odds ratios were calculated to assess the association between deployment-related factors (ie, physical injuries, exposure to potentially traumatic deployment experiences, combat, blast exposure, and mild TBI) and current health status, controlling for potential confounders, demographics, and predeployment experiences. SETTING: Nonclinical. PARTICIPANTS: Members (N=3098) of the Florida National Guard (1443 deployed, 1655 not deployed). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Presence of current psychiatric diagnoses and health outcomes, including postconcussive and non-postconcussive symptoms. RESULTS: Surveys were completed an average of 31.8 months (SD=24.4, range=0-95) after deployment. Strong, statistically significant associations were found between self-reported military deployment-related factors and current adverse health status. Deployment-related mild TBI was associated with depression, anxiety, posttraumatic stress disorder (PTSD), and postconcussive symptoms collectively and individually. Statistically significant increases in the frequency of depression, anxiety, PTSD, and a postconcussive symptom complex were seen comparing single to multiple TBIs. However, a predeployment TBI did not increase the likelihood of sustaining another TBI in a blast exposure. Associations between blast exposure and abdominal pain, pain on deep breathing, shortness of breath, hearing loss, and tinnitus suggested residual barotrauma. Combat exposures with and without physical injury were each associated not only with PTSD but also with numerous postconcussive and non-postconcussive symptoms. The experience of seeing others wounded or killed or experiencing the death of a buddy or leader was associated with indigestion and headaches but not with depression, anxiety, or PTSD. CONCLUSIONS: Complex relationships exist between multiple deployment-related factors and numerous overlapping and co-occurring current adverse physical and psychological health outcomes. Various deployment-related experiences increased the risk for postdeployment adverse mental and physical health outcomes, individually and in combination. These findings suggest that an integrated physical and mental health care approach would be beneficial to postdeployment care.