Co-occurring Chronic Pain and PTSD Among US Military Veterans: Prevalence, Correlates, and Functioning.

BACKGROUND: The prevalence of co-occurring chronic pain and posttraumatic stress disorder (PTSD) has yet to be established in a nationally representative sample of US veterans, and little is known about the individual contributing roles of these disorders to the psychiatric and functional burden of this comorbidity. OBJECTIVE: To determine the prevalence of chronic pain, PTSD, and co-occurring chronic pain and PTSD, and psychiatric comorbidities and psychosocial functioning in these groups. DESIGN: Data were analyzed from the National Health and Resilience in Veterans Study, which surveyed a nationally representative sample of US veterans. PARTICIPANTS: Veterans (n=4069) were classified into four groups: control (i.e., no PTSD or chronic pain), chronic pain only, PTSD only, and co-occurring chronic pain and PTSD. MAIN MEASURES: A probable PTSD diagnosis was established using the PTSD Checklist for DSM-5, and a chronic pain diagnosis using a self-report item that queried health care professional diagnoses. Psychiatric and functional status were assessed using the Patient Health Questionnaire-4, Alcohol Use Disorders Identification Test, Screen of Drug Use, Suicide Behaviors Questionnaire-Revised, Short Form Health Survey-8, Brief Inventory of Psychosocial Functioning, and Medical Outcomes Study Cognitive Functioning Scale. KEY RESULTS: A total of 3.8% of veterans reported both probable PTSD and a diagnosis of chronic pain. Relative to veterans with chronic pain alone, those with co-occurring chronic pain and probable PTSD were more likely to screen positive for psychiatric disorders (odds ratios [ORs]=2.59-9.88) and scored lower on measures of psychosocial functioning (Cohen's ds=0.38-1.43). Relative to veterans with probable PTSD only, those with co-occurring chronic pain and probable PTSD were more likely to have attempted suicide (OR=4.79; 95%CI, 1.81-12.69). CONCLUSIONS: Results underscore the importance of whole health care that considers a broad range of health and functional domains in the assessment and treatment of co-occurring chronic pain and PTSD in veterans.

The mediating role of posttraumatic stress disorder symptoms in pain cognitions among Veterans with chronic pain.

Symptoms of posttraumatic stress disorder (PTSD) are highly prevalent among Veterans with chronic pain. Considerable research has examined the intersection of chronic pain and PTSD symptoms. However, it remains unclear whether changes in PTSD may potentially serve a mechanistic role in improving unhelpful pain cognitions for individuals with chronic pain. The present research contributes to the foundational knowledge by addressing this question. Baseline data from a randomized controlled trial targeting pain-related disability for Veterans (n = 103; mean age 43.66; SD = 10.17) with musculoskeletal pain and depression and/or PTSD symptoms were used. Cross-sectional mediation analyses showed that PTSD symptoms mediated the relationship between pain severity and pain catastrophizing, and between pain severity and pain acceptance. After controlling for depression, the mediation involving pain catastrophizing remained significant, while the mediation for pain acceptance did not. Although limitations exist, results point to several treatment recommendations, including ensuring that depressive affect, PTSD-specific symptoms, and attention to both body and mind are included in treatment. Results also provide preliminary evidence for examining these associations longitudinally to improve our understanding of this population and corresponding treatment recommendations.

Differences in Prosthetic Prescription Between Men and Women Veterans After Transtibial or Transfemoral Lower-Extremity Amputation: A Longitudinal Cohort Study (2005-2018).

OBJECTIVE: To evaluate whether prosthetic prescription differed by gender and the extent to which differences were mediated by measured factors. DESIGN: Retrospective longitudinal cohort study using data from Veterans Health Administration (VHA) administrative databases. SETTING: VHA patients throughout the United States. PARTICIPANTS: The sample included 20,889 men and 324 women who had an incident transtibial or transfemoral amputation between 2005 and 2018. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Time to prosthetic prescription (up to 1 year). We used parametric survival analysis (an accelerated failure time model) to assess gender differences. We estimated mediation effects of amputation level, pain comorbidity burden, medical comorbidities, depression, and marital status on time to prescription. RESULTS: In the 1 year after amputation, the proportion of women (54.3%) and men (55.7%) prescribed a prosthesis was similar. However, after we controlled for age, race, ethnicity, enrollment priority, VHA region, and service-connected disability, the time to prosthetic prescription was significantly faster among men compared with women (acceleration factor=0.73; 95% confidence interval, 0.61-0.87). The difference in time to prosthetic prescription between men and women was significantly mediated by amputation level (23%), pain comorbidity burden (-14%), and marital status (5%) but not medical comorbidities or depression. CONCLUSIONS: Although the proportion of patients with prosthetic prescription at 1-year postamputation was similar between men and women, women received prosthetic prescriptions more slowly than men, suggesting that more work is needed to understand barriers to timely prosthetic prescriptions among women, and how to intervene to reduce those barriers.

Voices of Women Veterans with Lower Limb Prostheses: a Qualitative Study.

BACKGROUND: Women Veterans with amputation are a group with unique needs whose numbers have grown over the last 5 years, accounting for nearly 3% of all Veterans with amputation in 2019. Although identified as a national priority by the Veterans Health Administration, the needs of this population have remained largely underrepresented in amputation research. OBJECTIVE: To describe the experiences of women Veterans with lower extremity amputation (LEA) related to prosthetic care provision and devices. DESIGN: National qualitative study using semi-structured individual interviews. PARTICIPANTS: Thirty women Veterans with LEA who had been prescribed a prosthesis at least 12 months prior. APPROACH: Inductive content analysis. KEY RESULTS: Four key themes emerged: (1) a sense of "feeling invisible" and lacking a connection with other women Veterans with amputation; (2) the desire for prosthetic devices that meet their biological and social needs; (3) the need for individualized assessment and a prosthetic limb prescription process that is tailored to women Veterans; the current process was often perceived as biased and either dismissive of women's concerns or failing to adequately solicit them; and (4) the desire for prosthetists who listen to and understand women's needs. CONCLUSIONS: Women Veterans with LEA articulated themes reminiscent of those previously reported by male Veterans with LEA, such as the importance of prostheses and the central role of the provider-patient relationship. However, they also articulated unique needs that could translate into specific strategies to improve prosthetic care, such as integrating formal opportunities for social support and peer interaction for women Veterans with LEA, advocating for administrative changes and research efforts to expand available prosthetic component options, and ensuring that clinical interactions are gender-sensitive and free of bias.

Transdiagnostic Cognitive Processes in Chronic Pain and Comorbid PTSD and Depression in Veterans.

BACKGROUND: Chronic pain in Veterans is a major problem compounded by comorbid posttraumatic stress disorder (PTSD) and depression. Adopting a transdiagnostic framework to understanding "shared territory" among these diagnoses has the potential to inform our understanding of the underlying cognitive processes and mechanisms that transverse diagnostic boundaries. PURPOSE: To examine the associations between pain-related cognitive processes (diversion, distancing, absorption, and openness), pain intensity, PTSD and depressive symptoms, and the extent to which Veterans with chronic pain with and without comorbid PTSD and depression engage in different/similar pain-related cognitive processes. METHODS: Secondary analysis of pretreatment data with a subsample (n = 147) of Veterans with chronic pain from a larger clinical trial. Pretreatment PCL-5 and PROMIS Depression scales were used to categorize participants into three groups: (a) Pain-only; (b) Pain-PTSD; and (c) Pain-PTSD-DEP. RESULTS: Compared to the Pain-only group, the Pain-PTSD and Pain-PTSD-DEP groups reported significantly greater pain intensity, PTSD and depressive symptoms, and ruminative pain absorption. The Pain-PTSD-DEP group had significantly lower pain diversion and pain openness scores. When diversion and openness were used within the Pain-PTSD-DEP group, however, they were both associated with lower pain intensity and openness was additionally associated with lower PTSD scores. However, in the Pain-PTSD group, pain openness was associated with higher depression scores. CONCLUSIONS: Across increasing complexity of comorbidity profiles (i.e., one vs. two comorbid conditions), ruminative absorption with pain emerged as a cognitive process that transverses diagnoses and contributes to worse outcomes. Nonjudgmental acceptance may not be universally beneficial, potentially depending upon the nature of comorbidity profiles.

Neuropsychological Performance and Functional Capacity Following Mild Traumatic Brain Injury in Veterans.

OBJECTIVE: To examine the relationship between neuropsychological functioning and performance-based functional capacity in veterans with a history of mild traumatic brain injury (mTBI), as well as the moderating effects of age and psychiatric symptoms on this relationship. SETTING: Three Veterans Affairs medical centers. PARTICIPANTS: One hundred nineteen Iraq/Afghanistan veterans with a history of mTBI and self-reported cognitive difficulties. DESIGN: Cross-sectional, secondary data analysis of baseline measures in a randomized controlled trial. MAIN MEASURES: The main outcome measure, functional capacity, was assessed using the objective and performance-based University of California San Diego Performance-based Skills Assessment-Brief. A global deficit score (GDS) was created as a composite score for performance on a battery of neuropsychological measures assessing domains of attention, processing speed, executive functioning, and verbal memory performance. Posttraumatic stress disorder (PTSD) symptom severity was assessed using the PTSD Checklist-Military Version, and depressive symptom severity was assessed using the Beck Depression Inventory, Second Edition. RESULTS: Bivariate analyses indicated that worse neuropsychological performance (ie, higher GDS) and greater PTSD symptom severity were associated with worse communication abilities and worse overall functional capacity. Multiple linear regressions demonstrated that GDS and PTSD symptom severity explained 9% of the variance in communication and 10% of the variance in overall functional capacity; however, GDS emerged as the only significant predictor in both regressions. Age, PTSD, and depressive symptom severity did not moderate the relationship between GDS and overall functional capacity. Performance in the verbal learning and memory domain emerged as the strongest neuropsychological predictor of communication and overall functional capacity. CONCLUSIONS: Worse neuropsychological functioning was moderately associated with worse performance-based functional capacity, even when accounting for PTSD symptom severity. Verbal learning and memory was the primary neuropsychological domain driving the relationship with functional capacity; improvement in verbal learning and memory may translate into improved functional capacity.

Change in Brain Oscillations as a Mechanism of Mindfulness-Meditation, Cognitive Therapy, and Mindfulness-Based Cognitive Therapy for Chronic Low Back Pain.

OBJECTIVE: Psychological treatments for chronic low back pain (CLBP) are effective. However, limited research has investigated their neurophysiological mechanisms. This study examined electroencephalography- (EEG-) assessed brain oscillation changes as potential mechanisms of cognitive therapy (CT), mindfulness-meditation (MM), and mindfulness-based cognitive therapy (MBCT) for CLBP. The a priori bandwidths of interest were changes in theta, alpha and beta power, measured at pre- and post-treatment. DESIGN: A secondary analysis of a clinical trial. SETTING: University of Queensland Psychology Clinic. SUBJECTS: Adults (N = 57) with CLBP who completed pre- and post-treatment EEG and pain outcome assessments. METHODS: EEG data were examined for five regions of interest (ROIs); the primary outcome was pain intensity. RESULTS: A significant reduction in theta (P=.015) and alpha (P=.006) power in the left frontal ROI across all treatments was found, although change in theta and alpha power in this region was not differentially associated with outcome across treatments. There were significant reductions in beta power in all five ROIs across all treatments (P≤.013). Beta power reduction in the central ROI showed a significant association with reduced pain intensity in MBCT only (P=.028). Changes in other regions were not statistically significant. CONCLUSIONS: These findings provide support for the capacity of psychological CLBP treatments to induce changes in brain activity. The reduced beta power in all five ROIs indicated that all three treatments engendered a state of lowered cortical arousal. The growing body of research in this area could potentially inform novel directions towards remedying central nervous system abnormalities associated with CLBP.

Self-Management to Improve Function After Amputation: A Randomized Controlled Trial of the VETPALS Intervention.

OBJECTIVE: To (1) evaluate the effects of a group-based self-management treatment intervention (VETPALS) on physical and psychosocial functioning (primary outcomes) and quality of life (secondary outcome) in individuals with amputation and (2) examine the feasibility and acceptability of the intervention in a large national health care system. DESIGN: Randomized controlled trial with masked outcome assessment. SETTING: Five Veterans Affairs medical centers geographically dispersed across the United States. PARTICIPANTS: 147 individuals with amputation during the past 2 years due to chronic limb threatening ischemia (N=147). INTERVENTIONS: Participants were randomized into VETPALS (N =71) or education control (N=76). VETPALS consisted of a 4-hour workshop and 4 additional 2-hour sessions addressing self-management skills, health and activity, managing emotions, communication and social support, and maintaining goals and gains. Education control consisted of the provision of amputation-related educational materials and provider follow-up if requested. MAIN OUTCOME MEASURES: Primary outcomes were physical functioning (Short Musculoskeletal Functional Assessment) and psychosocial functioning (Patient Health Questionnaire-9). Secondary outcomes were quality of life (global) and quality of life (satisfaction with health) from the World Health Organization Quality of Life Scale (brief). Assessment was conducted at baseline, 6 weeks (treatment completion), and 6 months (follow-up). RESULTS: Participants randomized to VETPALS reported significantly improved psychosocial functioning and quality of life (satisfaction with health) relative to controls at 6 months (B=1.84; 95% confidence interval, 0.37,3.31 and B=-0.61; 95% confidence interval, -1.11,-0.12, respectively). There were no differences in physical functioning over time between VETPALS and education control at either time point. Follow-up multiple imputation sensitivity analyses produced an identical pattern of results. Among VETPALS participants, treatment initiation was low (56%), but treatment retention (93% attended 4 of 5 classes) and overall satisfaction (100% reported very helpful or better and would recommend to a friend) were high. CONCLUSIONS: Group-based self-management improves psychosocial functioning for individuals with amputation due to chronic limb threatening ischemia. In-person participation is challenging for this population, but individuals who successfully initiate treatment typically persist and are highly satisfied.

Predictors of Intervention Adherence in Compensatory Cognitive Training for Veterans With a History of Mild Traumatic Brain Injury.

OBJECTIVE: The purpose of this study was to determine modifiable predictors of intervention adherence in a study of group-based Compensatory Cognitive Training (CCT) for Iraq/Afghanistan War veterans with a history of mild traumatic brain injury (mTBI). METHODS: One hundred twenty-three veterans enrolled in a randomized controlled trial of a 10-week CCT intervention (54 assigned to CCT) and were evaluated at baseline, 5 weeks, 10 weeks, and 15 weeks. CCT adherence was determined by the number of CCT sessions attended, with more sessions indicative of greater adherence. Baseline demographic and clinical characteristics, and subjective and objective neuropsychological performance, were examined in relation to CCT session attendance. RESULTS: Older age and worse attention performance at baseline were associated with higher CCT attendance rates. CONCLUSIONS: This study generates preliminary evidence for potential modifiable neuropsychological factors that may improve engagement in CCT interventions.

A Prospective Longitudinal Study of Trajectories of Depressive Symptoms After Dysvascular Amputation.

OBJECTIVES: Characterize the course of depressive symptoms during the first year after dysvascular amputation and identify factors that predict symptom trajectories. DESIGN: Prospective cohort study of individuals undergoing lower extremity amputation (LEA), surveyed at 4 time points (perioperative period, 6 weeks, 4 months, and 12 months postamputation). Multilevel modeling was used to describe and predict trajectories. SETTING: Four Veterans Affairs medical centers, a university hospital, and a level I trauma center. PARTICIPANTS: Participants (N=141; 74% retention) were a consecutive sample, eligible if they were undergoing their first unilateral LEA secondary to dysvascular disease. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURE: Patient Health Questionnaire-9. RESULTS: Approximately 40% of participants endorsed at least moderate depressive symptoms at perioperative baseline. Individuals with greater depressive symptoms in the perioperative period concurrently reported greater pain, poorer self-rated health, and prior mental health treatment. In the first 6 weeks after amputation there was a substantial improvement in depressive symptoms, especially among individuals with greater symptoms at baseline. Depressive symptoms were generally stable after 6 weeks. None of the covariates assessed significantly predicted trajectories of depressive symptom improvement. CONCLUSIONS: Watchful waiting may be the most appropriate course of action for many patients in the first 6 weeks after amputation. After 6 weeks, however, symptom levels tend to stabilize, suggesting that active intervention is called for if patients remain depressed at this point. Some patients may benefit from more proactive intervention, such as those with prior mental health treatment histories.

Quality of Relationships With Caregivers, Depression, and Life Satisfaction After Dysvascular Lower Extremity Amputation.

OBJECTIVE: To describe the relationship between caregiver-specific support and conflict, and psychosocial outcomes among individuals experiencing their first dysvascular lower extremity amputation (LEA). DESIGN: Cross-sectional cohort study using self-report surveys. SETTING: Department of Veterans Affairs, academic medical center, and level I trauma center. PARTICIPANTS: Individuals undergoing their first major LEA because of complications of peripheral arterial disease (PAD) or diabetes who have a caregiver and completed measures of caregiver support and conflict (N=137; 94.9% men). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The Patient Health Questionnaire-9 to assess depression and the Satisfaction With Life Scale to assess life satisfaction. RESULTS: In multiple regression analyses, controlling for global levels of perceived support, self-rated health, age, and mobility, caregiver-specific support was found to be associated with higher levels of life satisfaction and caregiver-specific conflict was found to be associated with lower levels of life satisfaction and higher levels of depressive symptoms. CONCLUSIONS: The specific relationship between individuals with limb loss and their caregivers may be an important determinant of well-being. Conflict with caregivers, which has received little attention thus far in the limb loss literature, appears to play a particularly important role. Individuals with limb loss may benefit from interventions with their caregivers that both enhance support and reduce conflict.

The development and validation of the AMPREDICT model for predicting mobility outcome after dysvascular lower extremity amputation.

OBJECTIVE: The objective of this study was the development of AMPREDICT-Mobility, a tool to predict the probability of independence in either basic or advanced (iBASIC or iADVANCED) mobility 1 year after dysvascular major lower extremity amputation. METHODS: Two prospective cohort studies during consecutive 4-year periods (2005-2009 and 2010-2014) were conducted at seven medical centers. Multiple demographic and biopsychosocial predictors were collected in the periamputation period among individuals undergoing their first major amputation because of complications of peripheral arterial disease or diabetes. The primary outcomes were iBASIC and iADVANCED mobility, as measured by the Locomotor Capabilities Index. Combined data from both studies were used for model development and internal validation. Backwards stepwise logistic regression was used to develop the final prediction models. The discrimination and calibration of each model were assessed. Internal validity of each model was assessed with bootstrap sampling. RESULTS: Twelve-month follow-up was reached by 157 of 200 (79%) participants. Among these, 54 (34%) did not achieve iBASIC mobility, 103 (66%) achieved at least iBASIC mobility, and 51 (32%) also achieved iADVANCED mobility. Predictive factors associated with reduced odds of achieving iBASIC mobility were increasing age, chronic obstructive pulmonary disease, dialysis, diabetes, prior history of treatment for depression or anxiety, and very poor to fair self-rated health. Those who were white, were married, and had at least a high-school degree had a higher probability of achieving iBASIC mobility. The odds of achieving iBASIC mobility increased with increasing body mass index up to 30 kg/m2 and decreased with increasing body mass index thereafter. The prediction model of iADVANCED mobility included the same predictors with the exception of diabetes, chronic obstructive pulmonary disease, and education level. Both models showed strong discrimination with C statistics of 0.85 and 0.82, respectively. The mean difference in predicted probabilities for those who did and did not achieve iBASIC and iADVANCED mobility was 33% and 29%, respectively. Tests for calibration and observed vs predicted plots suggested good fit for both models; however, the precision of the estimates of the predicted probabilities was modest. Internal validation through bootstrapping demonstrated some overoptimism of the original model development, with the optimism-adjusted C statistic for iBASIC and iADVANCED mobility being 0.74 and 0.71, respectively, and the discrimination slope 19% and 16%, respectively. CONCLUSIONS: AMPREDICT-Mobility is a user-friendly prediction tool that can inform the patient undergoing a dysvascular amputation and the patient's provider about the probability of independence in either basic or advanced mobility at each major lower extremity amputation level.

Mental Health Does Not Moderate Compensatory Cognitive Training Efficacy for Veterans With a History of Mild Traumatic Brain Injury.

OBJECTIVE: To examine the potential moderating effects of mental health symptoms on the efficacy of compensatory cognitive training (CCT) for Operation Enduring Freedom/Operation Iraqi Freedom/Operation New Dawn veterans with a history of mild traumatic brain injury (mTBI). DESIGN: Secondary analysis of a randomized controlled trial of CCT. Posttraumatic stress disorder, depression, and substance dependence symptom severity were examined as potential moderators of CCT efficacy for subjective cognitive complaints, use of cognitive strategies, and objective neurocognitive performance. SETTING: Three Veterans Affairs medical centers. PARTICIPANTS: Participants included veterans with history of mTBI (N=119): 50 participated in CCT and 69 received usual care (UC). INTERVENTION: CCT is a 10-week group-based (90 minutes per session) manualized cognitive rehabilitation intervention. MAIN OUTCOME MEASURES: Objective (neuropsychological functioning) and subjective (self-report) cognitive functioning and use of cognitive strategies. RESULTS: Baseline mental health symptoms did not moderate CCT efficacy: veterans who received CCT reported significantly greater improvement in cognitive difficulties and use of cognitive strategies compared with the UC group, regardless of baseline mental health symptom severity. The CCT group also demonstrated significant improvements on neuropsychological measures of attention, learning, and executive functioning compared with the UC group, regardless of baseline mental health symptom severity. CONCLUSIONS: CCT is efficacious for improving objective cognitive functioning and compensatory strategy use for veterans with a history of mTBI, regardless of the severity of comorbid psychiatric symptoms.

Compensatory Cognitive Training for Operation Enduring Freedom/Operation Iraqi Freedom/Operation New Dawn Veterans With Mild Traumatic Brain Injury.

OBJECTIVE: The purpose of the study was to evaluate the efficacy of group-based compensatory cognitive training (CCT) for Operation Enduring Freedom (OEF)/Operation Iraqi Freedom(OIF)/Operation New Dawn (OND) Veterans with a history of mild traumatic brain injury. METHOD: One hundred nineteen OEF/OIF/OND Veterans with history of mild traumatic brain injury participated at 3 sites, and 50 of the Veterans were randomized to CCT group, while 69 Veterans were randomized to the usual care control group. The CCT group participated in 10 weeks of CCT. Both CCT and usual care groups were assessed at baseline, 5 weeks (midway through CCT), 10 weeks (immediately following CCT), and 15 weeks (5-week follow-up) on measures of subjective cognitive complaints, use of cognitive strategies, psychological functioning, and objective cognitive performance. RESULTS: Veterans who participated in CCT reported significantly fewer cognitive and memory difficulties and greater use of cognitive strategies. They also demonstrated significant improvements on neurocognitive tests of attention, learning, and executive functioning, which were 3 of the cognitive domains targeted in CCT. CONCLUSIONS: Findings indicate that training in compensatory cognitive strategies facilitates behavioral change (ie, use of cognitive strategies) as well as both subjective and objective improvements in targeted cognitive domains.

The development and validation of a novel outcome measure to quantify mobility in the dysvascular lower extremity amputee: the amputee single item mobility measure.

OBJECTIVE: This study describes the development and psychometric evaluation of a novel patient-reported single-item mobility measure. DESIGN: Prospective cohort study. SETTING: Four Veteran's Administration Medical Centers. SUBJECTS: Individuals undergoing their first major unilateral lower extremity amputation; 198 met inclusion criteria; of these, 113 (57%) enrolled. INTERVENTIONS: None. MAIN MEASURES: The Amputee Single Item Mobility Measure, a single item measure with scores ranging from 0 to 6, was developed by an expert panel, and concurrently administered with the Locomotor Capabilities Index-5 (LCI-5) and other outcome measures at six weeks, four months, and 12 months post-amputation. Criterion and construct validity, responsiveness, and floor/ceiling effects were evaluated. Responsiveness was assessed using the standardized response mean. RESULTS: The overall mean 12-month Amputee Single Item Mobility Measure score was 3.39 ±1.4. Scores for transmetatarsal, transtibial, and transfemoral amputees were 4.2 (±1.3), 3.2 (±1.5), and 2.9 (±1.1), respectively. Amputee Single Item Mobility Measure scores demonstrated "large" and statistically significant correlations with the LCI-5 scores at six weeks (r = 0.72), four months (r = 0.81), and 12 months (r = 0.86). At four months and 12 months, the correlation between Amputee Single Item Mobility Measure scores and hours of prosthetic use were r = 0.69 and r = 0.66, respectively, and between Amputee Single Item Mobility Measure scores and Trinity Amputation and Prosthesis Experience Scales functional restriction scores were r = 0.45 and r = 0.67, respectively. Amputee Single Item Mobility Measure scores increased significantly from six weeks to 12 months post-amputation. Minimal floor/ceiling effects were demonstrated. CONCLUSIONS: In the unilateral dysvascular amputee, the Amputee Single Item Mobility Measure has strong criterion and construct validity, excellent responsiveness, and does not exhibit floor/ceiling effects.

Longitudinal Study of Headache Trajectories in the Year After Mild Traumatic Brain Injury: Relation to Posttraumatic Stress Disorder Symptoms.

OBJECTIVE: To examine headache trajectories among persons with mild traumatic brain injury (MTBI) in the year after injury and the relation of headache trajectory to posttraumatic stress disorder (PTSD) at 1 year postinjury. DESIGN: Prospective, longitudinal study. SETTING: Participants were recruited through a university medical center and participated in follow-up assessments by telephone. PARTICIPANTS: Prospectively enrolled individuals (N=212) within 1 week of MTBI who were hospitalized for observation or other system injuries. Participants were assessed at baseline and 3, 6, and 12 months postinjury. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Participants rated average headache pain intensity using the 0 to 10 numerical rating scale at each assessment period. The PTSD Checklist-Civilian Version was completed at 12 months postinjury. RESULTS: Latent class growth analysis produced a 4-trajectory group model, with groups labeled resolved, worsening, improving, and chronic. Multivariate regression modeling revealed that younger age and premorbid headache correlated with membership in the worse trajectory groups (worsening and chronic; P<.001). Univariate regression revealed a significant association between PTSD and membership in the worse trajectory groups (P<.001). CONCLUSIONS: Headache is common in the year after MTBI, with younger people, persons who previously had headaches, and persons with PTSD more likely to report chronic or worsening headache. Further research is needed to examine whether PTSD symptoms exacerbate headaches or whether problematic headache symptoms exacerbate PTSD.

Suicidal ideation among individuals with dysvascular lower extremity amputation.

OBJECTIVE: To examine the estimated prevalence and correlates of suicidal ideation (SI) among individuals 1 year after a first lower extremity amputation (LEA). DESIGN: Cohort survey. SETTING: Four medical centers. PARTICIPANTS: A referred sample of patients (N=239), primarily men, undergoing their first LEA because of complications of diabetes mellitus or peripheral arterial disease, were screened for participation between 2005 and 2008. Of these patients, 136 (57%) met study criteria and 87 (64%) enrolled; 70 (80.5%) of the enrolled patients had complete data regarding SI at 12-month follow-up. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: SI, demographic/health information, depressive symptoms, mobility, independence in activities of daily living (ADL), satisfaction with mobility and ADL, medical comorbidities, social support, self-efficacy. RESULTS: At 12 months postamputation, 11 subjects (15.71%) reported SI; of these, 3 (27.3%) screened negative for depression. Lower mobility, lower satisfaction with mobility, greater impairment in ADL, lower satisfaction with ADL, lower self-efficacy, and depressive symptoms were all correlated with the presence of SI at a univariate level; of these, only depressive symptoms remained significantly associated with SI in a multivariable model. CONCLUSIONS: SI was common among those with recent LEA. Several aspects of an amputee's clinical presentation, such as physical functioning, satisfaction with functioning, and self-efficacy, were associated with SI, although depression severity was the best risk marker. A subset of the sample endorsed SI in the absence of a positive depression screen. Brief screening for depression that includes assessment of SI is recommended.

Comorbidity of pain and depression among persons with traumatic brain injury.

OBJECTIVE: To assess the prevalence of pain, depression, and comorbid pain and depression among a civilian sample of persons with traumatic brain injury (TBI). DESIGN: Longitudinal survey design with 1-year follow-up. SETTING: Inpatient rehabilitation and the community. PARTICIPANTS: Participants (N=158) admitted to inpatient rehabilitation after moderate to severe TBI. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Depression was assessed with the Patient Health Questionnaire-9 (PHQ-9); pain was assessed with a numerical rating scale from 0 (no pain) to 10 (worst pain). Participants who reported average pain ≥ 4 were classified as having pain, and participants with PHQ-9 scores ≥ 10 were classified as depressed. RESULTS: Both pain and depression were more prevalent at baseline assessment (pain: 70%; depression: 31%) than at year 1 (pain: 34%; depression: 22%). Comorbid pain and depression declined from 27% at baseline to 18% at year 1. Pain was significantly associated with depression at baseline (relative risk: 2.62, P=.003) and at year 1 (relative risk: 7.98, P<.001). CONCLUSIONS: Pain and depression are common and frequently co-occur in persons with TBI. Although their frequency declined over the first year after injury, the strength of their association increased. Assessment and treatment of both conditions simultaneously may lead to improved outcomes, both early after TBI and over time.

Changes in cognitive function from presurgery to 4 months postsurgery in individuals undergoing dysvascular amputation.

OBJECTIVE: To describe cognition among individuals with new amputations at 3 time points: presurgical, 6 weeks postamputation, and 4 months postamputation. DESIGN: Prospective cohort. SETTING: Medical centers. PARTICIPANTS: Referred sample Veterans who were primarily men (N=80) experiencing their first lower extremity amputation as a result of complications of diabetes mellitus or peripheral arterial disease. Patients were screened for the absence of gross cognitive impairment using the Short Portable Mental Status Questionnaire (SPMSQ). Of those 87 individuals who were eligible, 64% enrolled; 29 were enrolled presurgically and have cognitive data for all 3 time points, and 58 were enrolled postamputation. Eighty of the 87 individuals enrolled by 6 weeks remained enrolled at 4 months. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Demographic and general health information, general mental status (SPMSQ), and 4 brief, well-established neuropsychological measures. RESULTS: Most mean neuropsychological test scores fell in the low average or average range. For most participants, overall cognitive status improved from pre- to postsurgery and then remained stable between 6 weeks and 4 months. There were significant improvements between pre- and postsurgical test scores in verbal learning and memory, and these remained unchanged between 6 weeks and 4 months. Better 4 month cognitive performance was associated with higher perceived general health. CONCLUSIONS: Overall cognitive performance is poorest presurgically. Though there is improvement between pre- and postamputation, cognition appears generally stable between 6 weeks and 4 months.

Evaluating the benefits of a second pain treatment following a clinical trial.

OBJECTIVE: To examine the value of including an open label phase after a clinical trial of pain treatments by examining participant characteristics and potential benefits. METHOD: Secondary data analysis. Veterans with chronic pain who completed a randomized controlled trial (RCT) comparing hypnosis, mindfulness meditation, and pain education were invited to participate in an open label phase. Average and worst pain intensities, pain interference, and depression were assessed pre- and postopen label phase; global impressions of change and treatment satisfaction were assessed at postopen label phase only. RESULTS: Of those who were offered the open label phase, 40% (n = 68) enrolled. Enrollees were likely to be older, to have attended more sessions in the RCT, to be satisfied with their first treatment, and to perceive improvement in their ability to manage pain after the RCT. In the open label phase, depression and worst pain decreased across all three treatment conditions. No other improvements were observed. However, most Veterans perceived improvements in pain intensity, ability to manage pain, and pain interference, and were satisfied with the second intervention. CONCLUSIONS: There appears to be some value to adding an open label phase to the end of a trial of pain treatments. A substantial portion of study participants elected to participate and reported it to be beneficial. Exploring data from an open label phase can illuminate important aspects of patient experience, barriers to and facilitators of care, as well as treatment preferences. (PsycInfo Database Record (c) 2024 APA, all rights reserved).