An Overview of the Traumatic Brain Injury–Quality of Life (TBI-QOL) Measurement System

Measurement properties of the Traumatic Brain Injury Quality of Life (TBI-QoL) and Spinal Cord Injury Quality of Life (SCI-QoL) measurement systems: a systematic review

PURPOSE

Traumatic brain injury and spinal cord injury impact all areas of individuals' quality of life. A synthesis of available evidence for the Traumatic Brain Injury Quality of Life (TBI-QoL) and Spinal Cord Injury Quality of Life (SCI-QoL) measurement systems could inform evidence-based clinical practice and research. Thus, we aimed to systematically review the literature of existing evidence on the measurement properties of SCI-QoL and TBI-QoL among rehabilitation populations.

METHODS

We used the COnsensus-based Standards for the selection of health Measurement Instruments (COSMIN) framework for evaluating measures to guide this systematic review. We searched nine electronic databases and registries, and hand-searched reference lists of included articles. Two independent reviewers screened selected articles and extracted the data. We used COSMIN's thresholds to synthesize measurement properties evidence (insufficient, sufficient), and the modified GRADE approach to synthesize evidence quality (very-low, low, moderate, high).

RESULTS

We included 16 studies for SCI-QoL and 14 studies for TBI-QoL. Both measurement systems have sufficient content validity, structural validity, internal consistency and construct validity across nearly all domains (GRADE: high). Most SCI-QoL domains and some TBI-QoL domains have sufficient evidence of cross-cultural validity and test-retest reliability (GRADE: moderate-high). Besides the cognition domains of TBI-QoL, which have indeterminate evidence for measurement error and sufficient evidence for responsiveness (GRADE: high), there is no additional evidence available for these measurement properties.

CONCLUSION

Rehabilitation researchers and clinicians can use SCI-QoL and TBI-QoL to describe and evaluate patients. Further evidence of measurement error, responsiveness, and predictive validity would advance the use and interpretation of SCI-QoL and TBI-QoL in rehabilitation.

Gut Microbial Composition Is Associated with Symptom Self-Report in Trauma-Exposed Iraq and Afghanistan Veterans

Iraq and Afghanistan War-era Veterans are at elevated risk for physical injuries and psychiatric illnesses, in particular the polytrauma triad of mild traumatic brain injury (mTBI), post-traumatic stress disorder (PTSD), and chronic pain. The gut microbiome has been implicated in modulation of critical processes beyond digestion, including immune system functioning and stress responsivity, and may be an important factor in understanding physical and mental health outcomes following deployment and trauma exposure. However, minimal research to date has sought to characterize gut microbiome composition in this population. Male Veterans of the conflicts in Iraq and Afghanistan who previously completed a Veterans Affairs' comprehensive TBI evaluation were enrolled in the current study. Participants completed self-report measures of PTSD symptom severity, pain intensity and interference, fatigue, cognitive symptoms, substance use, and sleep quality. They also submitted fecal samples, and metagenomic sequencing was used to calculate alpha and beta diversity and taxonomic microbial composition. Associations between microbiome data and clinical variables were then examined. Alpha and beta diversity measures were not significantly correlated with clinical outcomes. Fatigue, post-concussive symptoms, executive function symptoms, and cannabis use were associated with differences in gut microbial composition, specifically Verrucomicrobiota. Together, results suggest that altered gut microbiome composition is associated with psychiatric and cognitive symptoms in Veterans and highlight a potential new therapeutic target of interest. Future research is needed to examine whether probiotic treatment is effective for reducing symptoms common in this clinical population.

The American Congress of Rehabilitation Medicine Diagnostic Criteria for Mild Traumatic Brain Injury

OBJECTIVE

To develop new diagnostic criteria for mild traumatic brain injury (TBI) that are appropriate for use across the lifespan and in sports, civilian trauma, and military settings.

DESIGN

Rapid evidence reviews on 12 clinical questions and Delphi method for expert consensus.

PARTICIPANTS

The Mild Traumatic Brain Injury Task Force of the American Congress of Rehabilitation Medicine Brain Injury Special Interest Group convened a Working Group of 17 members and an external interdisciplinary expert panel of 32 clinician-scientists. Public stakeholder feedback was analyzed from 68 individuals and 23 organizations.

RESULTS

The first 2 Delphi votes asked the expert panel to rate their agreement with both the diagnostic criteria for mild TBI and the supporting evidence statements. In the first round, 10 of 12 evidence statements reached consensus agreement. Revised evidence statements underwent a second round of expert panel voting, where consensus was achieved for all. For the diagnostic criteria, the final agreement rate, after the third vote, was 90.7%. Public stakeholder feedback was incorporated into the diagnostic criteria revision prior to the third expert panel vote. A terminology question was added to the third round of Delphi voting, where 30 of 32 (93.8%) expert panel members agreed that 'the diagnostic label 'concussion' may be used interchangeably with 'mild TBI' when neuroimaging is normal or not clinically indicated.'

CONCLUSIONS

New diagnostic criteria for mild TBI were developed through an evidence review and expert consensus process. Having unified diagnostic criteria for mild TBI can improve the quality and consistency of mild TBI research and clinical care.

Assessment of quality of life after upper extremity transplantation: Framework for patient-reported outcome scale domains

Upper extremity transplantation offers the promise of restored function and regained quality of life (QOL) for individuals who have sustained hand or arm amputation. However, a major challenge for this procedure becoming an accessible treatment option for patients is the lack of standard measures to document benefits to QOL. Patient-reported outcomes (PRO) measures are well-suited for this kind of intervention, where the perspective of the patient is central to defining treatment success. To date, qualitative work with experts, clinicians, and patients has been used to identify the most important domains of QOL for PRO item development. Specifically, our group's qualitative work has identified several domains of QOL that are unique to individuals who have received upper extremity transplants, which are distinct from topics covered by existing PRO measures. These include emotional and social aspects of upper extremity transplant, such as Expectations and Perceived Outcomes, Integration and Assimilation of Transplant, Fitting in, and Post-Surgical Challenges and Complications. The broad topic of Satisfaction with Transplant was subdivided into three subtopics: Function, Sensation, and Aesthetics. Satisfaction with Sensation was also identified as a unique domain not evaluated by existing PRO measures. This report operationalizes these eight QOL domains by presenting scoping definitions. This manuscript describes the work that has been completed for domain characterization as an early step toward developing standardized PRO measures to evaluate these important outcomes specific to upper extremity transplantation.

Informing the development of an outcome set and banks of items to measure mobility among individuals with acquired brain injury using natural language processing

BACKGROUND

The sheer number of measures evaluating mobility and inconsistencies in terminology make it challenging to extract potential core domains and items. Automating a portion of the data synthesis would allow us to cover a much larger volume of studies and databases in a smaller fraction of the time compared to the usual process. Thus, the objective of this study was to identify a comprehensive outcome set and develop preliminary banks of items of mobility among individuals with acquired brain injury (ABI) using Natural Language Processing (NLP).

METHODS

An umbrella review of 47 reviews evaluating the content of mobility measures among individuals with ABI was conducted. A search was performed on 5 databases between 2000 and 2020. Two independent reviewers retrieved copies of the measures and extracted mobility domains and items. A pre-trained BERT model (state-of-the-art model for NLP) provided vector representations for each sentence. Using the International Classification of Functioning, Disability, and Health Framework (ICF) ontology as a guide for clustering, a k-means algorithm was used to retrieve clusters of similar sentences from their embeddings. The resulting embedding clusters were evaluated using the Silhouette score and fine-tuned according to expert input.

RESULTS

The study identified 246 mobility measures, including 474 domains and 2109 items. Encoding the clusters using the ICF ontology and expert knowledge helped in regrouping the items in a way that is more closely related to mobility terminology. Our best results identified banks of items that were used to create a 24 comprehensive outcome sets of mobility, including Upper Extremity Mobility, Emotional Function, Balance, Motor Control, Self-care, Social Life and Relationships, Cognition, Walking, Postural Transition, Recreation, and Leisure Activities, Activities of Daily Living, Physical Functioning, Communication, Work/Study, Climbing, Sensory Functions, General Health, Fatigue, Functional Independence, Pain, Alcohol and Drugs Use, Transportation, Sleeping, and Finances.

CONCLUSION

The banks of items of mobility domains represent a first step toward establishing a comprehensive outcome set and a common language of mobility to develop the ontology. It enables researchers and healthcare professionals to begin exposing the content of mobility measures as a way to assess mobility comprehensively.

Responsiveness of the Traumatic Brain Injury Quality of Life Cognition Banks in Recent Brain Injury

Patient report of functioning is one component of the neurocognitive exam following traumatic brain injury, and standardized patient-reported outcomes measures are useful to track outcomes during rehabilitation. The Traumatic Brain Injury Quality of Life measurement system (TBI-QOL) is a TBI-specific extension of the PROMIS and Neuro-QoL measurement systems that includes 20 item banks across physical, emotional, social, and cognitive domains. Previous research has evaluated the responsiveness of the TBI-QOL measures in community-dwelling individuals and found clinically important change over a 6-month assessment interval in a sample of individuals who were on average 5 years post-injury. In the present study, we report on the responsiveness of the TBI-QOL Cognition–General Concerns and Executive Function item bank scores and the Cognitive Health Composite scores in a recently injured sample over a 1-year study period. Data from 128 participants with complicated mild, moderate, or severe TBI within the previous 6 months were evaluated. The majority of the sample was male, white, and non-Hispanic. The participants were 18–92 years of age and were first evaluated from 0 to 5 months post-injury. Eighty participants completed the 1-year follow-up assessment. Results show acceptable standard response mean values (0.47–0.51) for all measures and minimal detectable change values ranging from 8.2 to 8.8 T-score points for Cognition–General Concerns and Executive Functioning measures. Anchor rating analysis revealed that changes in scores on the Executive Function item bank and the Cognitive Health Composite were meaningfully associated with participant-reported changes in the areas of attention, multitasking, and memory. Evaluation of change score differences by a variety of clinical indicators demonstrated a small but significant difference in the three TBI-QOL change scores by TBI injury severity grouping. These results support the responsiveness of the TBI-QOL cognition measures in newly injured individuals and provides information on the minimal important differences for the TBI-QOL cognition measures, which can be used for score interpretation by clinicians and researchers seeking patient-reported outcome measures of self-reported cognitive QOL after TBI.

CONNECT: A pragmatic clinical trial testing a remotely provided linkage to service coordination after hospitalization for TBI

OBJECTIVE

To test whether a complex behavioral intervention delivered remotely to connect individuals to clinical resources after hospitalization for TBI improved their quality of life.

DESIGN/METHODS

Community-based randomized pragmatic clinical trial. Main measures TBI-QOL, Activity Measure for Post-Acute Care (AM-PAC), Clinical Satisfaction and Competency Rating Scale.

RESULTS

332 individuals ≥18 years-old hospitalized for TBI in four upper Midwest states were randomized to Remote (n = 166) and Usual Care (n = 166) groups. The groups were equivalent and representative of their state population's racial and ethnic composition, age, and proportion living in rural communities. There were no significant differences within or between experimental groups over the study period in TBI-QOL t-scores. There was a significant improvement in AM-PAC Daily Activities within the Remote group and a significant between-group improvement in clinical satisfaction for the Remote group.

CONCLUSION

Enrolling a representative, regional community-based sample of individuals with TBI can be successful, and delivering a customized complex behavioral intervention remotely is feasible. The overall lack of intervention effectiveness was likely due to enrolling individuals without pre-identified clinical needs, initiating intervention after the immediate post-acute phase when needs are often highest, inability to provide direct clinical care remotely, and potential lack of outcome measure responsiveness in our sample.

The impact of employment on quality of life for adults with brain injury

BACKGROUND: Employment is associated with greater quality of life (QOL) for people with disabilities. Yet, for individuals with traumatic brain injury (TBI), the benefits of work are not often realized given high rates of unemployment. OBJECTIVE: This study examined the unique impact of psychosocial variables and employment status (working vs. not working) on self-reported QOL among adults with TBI. METHODS: Participants included 116 adults with TBI between the ages of 18-65, recruited through state brain injury associations in the United States to complete an anonymous online survey. Hierarchical regression analysis was used to examine the incremental impact of psychosocial variables (sense of community, social support, social network, and problem-solving confidence) and employment status on QOL controlling for age and symptom severity. RESULTS: In the final model, employment status, informal and formal support network ties, problem-solving confidence, sense of community, and emotional support explained 59% of the variance in QOL, which is considered a large effect size. Employment status uniquely explained 5% of the variance in QOL. CONCLUSIONS: Findings support the positive benefits of work for adults with TBI. Rehabilitation services that emphasize vocational considerations and employment supports are needed to impact work status and ultimately QOL for individuals with TBI.

The Design of a Track Monitoring System for Sports Injury Rehabilitation Training

To realize the remote monitoring design in the process of rehabilitation training for athletes after an injury using computer technology, using Visual Studio 2010 development platform, and using ASP as the development language, NET as the development framework, the injury rehabilitation of injured athletes for dynamic monitoring of information management system, and its functions, system architecture and other detailed design. This article identified six laboratory workers outside the sample as experimental subjects. The experimental subjects' blood oxygen flow, degree, and rate were measured in the normal condition, and the pulse wave was recorded. Then, the upper and lower limbs rehabilitation training robot developed by the laboratory was used for about 15 minutes of rehabilitation training with 3-gear difficulty. The results show that the data measured by the system are the same as the data measured by the Lu Yue brand finger clip type YX301 blood oxygen saturation detector and meet the design requirements. Conclusion. The monitoring accuracy of the system is high, the resistance signal waveform is basically consistent with the actual waveform, and the monitoring effect is good.

Reproductive Health in Women with Physical Disability: A Conceptual Framework for the Development of New Patient-Reported Outcome Measures

Background: Barriers in the built environment, enduring stereotypes and biases, and limited disability competency of health care providers compromise access to and quality of reproductive health care for women with physical disabilities. One way to improve our understanding of critical factors that drive reproductive health inequity and its impact on access to care is to use patient-reported outcome measures (PROMs) that capture relevant and meaningful information about experience. In this study, we developed a conceptual framework as the foundation for relevant and clinically meaningful patient-reported outcome measures targeting the interface of disability and reproductive health. Materials and Methods: We conducted semistructured focus groups and interviews to assess women's experiences around their reproductive health and contextual factors related to disability. We used deductive and inductive qualitative coding approaches to develop the conceptual framework. Results: Eighty-one women between the ages of 16 and 50 with a self-reported physical disability, defined by an impairment of mobility, participated in 13 focus groups (N = 64) and 17 individual interviews. Five major themes characterized the conceptual framework that emerged-knowledge about reproductive health, communication about reproductive health, relationships, the reproductive health care environment, and self-advocacy/identity-all of which had some relationship with five major reproductive health issues-pregnancy and labor/delivery, periods and menstrual management, contraception, sexuality and sexual functioning, and pelvic examinations. Conclusions: This conceptual framework will serve as a foundation for PROM and guide intervention development to reduce reproductive health inequity and improve reproductive health outcomes of women with physical disabilities.

Development of the TBI-QOL Headache Pain Item Bank and Short Form

OBJECTIVE

To develop, calibrate, and evaluate the test-retest reliability of a new patient-reported outcome measure of headache pain relevant for individuals with traumatic brain injury (TBI).

SETTING

Six TBI Model Systems rehabilitation centers in the United States.

PARTICIPANTS

Adults with medically confirmed documentation of TBI.

DESIGN

Cross-sectional calibration field testing and test-retest reliability analyses.

MAIN MEASURES

Traumatic Brain Injury-Quality of Life Headache Pain item bank.

RESULTS

Thirteen headache pain items were calibrated as a unidimensional measure using data from 590 participants. The new measure was reliable (α = .98; item-total correlation range: 0.71-0.91). Item parameter estimates were estimated using Samejima's Graded Response Model and a 10-item calibrated short form was created. Simulation testing confirmed that both the computer-adaptive test and the short-form administrations were equivalent to the full item bank. One- to-2-week test-retest reliability of the computer-adaptive test was high (Pearson r and intraclass correlation coefficients = 0.81). Approximately two-thirds of the sample reported at least 1 headache symptom.

CONCLUSION

The Traumatic Brain Injury-Quality of Life Headache Pain item bank and short form provide researchers and clinicians with reliable measures of the subjective experience of headache symptoms for individuals with a history of TBI.

Measuring Fatigue in TBI: Development of the TBI-QOL Fatigue Item Bank and Short Form

OBJECTIVE

To develop a traumatic brain injury (TBI)-specific, item response theory (IRT)-calibrated Fatigue item bank, short form, and computer adaptive test (CAT) as part of the Traumatic Brain Injury-Quality of Life (TBI-QOL) measurement system.

SETTING

Five TBI Model Systems rehabilitation centers in the US PARTICIPANTS:: Adults with complicated mild, moderate, or severe TBI confirmed by medical record review.

DESIGN

Cross-sectional field testing via phone or in-person interview.

MAIN MEASURES

TBI-QOL Fatigue item bank, short form, and CAT.

RESULTS

A total of 590 adults with TBI completed 95 preliminary fatigue items, including 86 items from the Patient-Reported Outcomes Measurement Information System (PROMIS) and 9 items from the Quality of Life in Neurological Disorders (Neuro-QOL) system. Through 4 iterations of factor analysis, 22 items were deleted for reasons such as local item dependence, misfit, and low item-total correlations. Graded response model IRT analyses were conducted on the 73-item set, and Stocking-Lord equating was used to transform the item parameters to the PROMIS (general population) metric. A short form and CAT, which demonstrate similar reliability to the full item bank, were developed. Test-retest reliability of the CAT was established in an independent sample (Pearson's r and intraclass correlation coefficient = 0.82 [95% confidence interval: 0.72-0.88]).

CONCLUSIONS

The TBI-QOL Fatigue item bank, short form, and CAT provide rehabilitation researchers and clinicians with TBI-optimized tools for assessment of the patient-reported experience and impact of fatigue on individuals with TBI.

Measuring Self-Reported Physical Function in Individuals With TBI: Development of the TBI-QOL Mobility and Upper Extremity Item Banks and Short Forms

OBJECTIVES

To describe the development and field testing of the patient-reported outcome measures of Mobility and Upper Extremity function from the Traumatic Brain Injury Quality of Life (TBI-QOL) measurement system, and to evaluate the use of computer adaptive testing.

SETTING

Five rehabilitation facilities funded as part of the TBI Model Systems network.

PARTICIPANTS

Individuals with complicated mild, moderate, or severe traumatic brain injury (n = 590).

INTERVENTIONS

Not available.

OUTCOME MEASURES

TBI-QOL Mobility and Upper Extremity item banks.

RESULTS

Item response theory and factor analyses supported the unidimensionality of the Mobility and Upper Extremity banks. Descriptive statistics showed a ceiling effect for both measures. Simulated computer adaptive tests (CATs) showed that measurement precision was maintained across administration formats for both measures. The Upper Extremity CAT showed a loss of precision for individuals without impairment and that a higher number of items were required to achieve sufficiently precise measurement, compared to the Mobility CAT.

CONCLUSIONS

The TBI-QOL Upper Extremity and Mobility item banks achieved good breadth of coverage, particularly among those individuals who have experienced some degree of functional limitation. The use of CAT administration minimizes respondent burden, while allowing for the comprehensive assessment of adults with TBI. The combined use of the TBI-QOL with performance-based measures could guide the development of targeted rehabilitation treatments.