Prevalence of Parent-Reported Traumatic Brain Injury in Children and Associated Health Conditions

Childhood Physical Health and Attention Deficit/Hyperactivity Disorder: A Systematic Review and Meta-Analysis of Modifiable Factors

Although neurobiologic and genetic factors figure prominently in the development of attention deficit/hyperactivity disorder (ADHD), adverse physical health experiences and conditions encountered during childhood may also play a role. Poor health is known to impact the developing brain with potential lifelong implications for behavioral issues. In attempt to better understand the relationship between childhood physical health and the onset and presence of ADHD symptoms, we summarized international peer-reviewed articles documenting relationships between a select group of childhood diseases or health events (e.g., illnesses, injuries, syndromes) and subsequent ADHD outcomes among children ages 0-17 years. Drawing on a larger two-phase systematic review, 57 longitudinal or retrospective observational studies (1978-2021) of childhood allergies, asthma, eczema, head injury, infection, or sleep problems and later ADHD diagnosis or symptomatology were identified and subjected to meta-analysis. Significant associations were documented between childhood head injuries, infections, and sleep problems with both dichotomous and continuous measures of ADHD, and between allergies with dichotomous measures of ADHD. We did not observe significant associations between asthma or eczema with ADHD outcomes. Heterogeneity detected for multiple associations, primarily among continuously measured outcomes, underscores the potential value of future subgroup analyses and individual studies. Collectively, these findings shed light on the importance of physical health in understanding childhood ADHD. Possible etiologic links between physical health factors and ADHD are discussed, as are implications for prevention efforts by providers, systems, and communities.

Does the Association Between Concussion Measures and Social Context Factors Differ in Black and White Parents?

CONTEXT

Middle school (MS) parents may benefit from education supporting timely concussion identification and care-seeking in their young children (aged approximately 10 to 15 years). However, such education may not consider individual needs and different social context factors, including lower socioeconomic status, disadvantaged social determinants of health, and different racial and ethnic backgrounds.

OBJECTIVES

To examine the relationship between social context factors and concussion knowledge, attitudes, and communication in MS parents and to explore the possible role of race and ethnicity (Black or White) as an effect measure modifier.

DESIGN

Cross-sectional study.

SETTING

Online survey.

PATIENTS OR OTHER PARTICIPANTS

A nationally representative sample of MS parents who completed an online survey (n = 1248).

MAIN OUTCOME MEASURE(S)

Parent outcomes were a history of concussion education, concussion symptom knowledge and attitudes, and communication with children about concussion. Main exposures were parental race and ethnicity (Black or White) and social context factors. Uni- and multivariable statistical analyses were performed to achieve the study aims.

RESULTS

Black parents were more likely than White parents to have received concussion education (69.5% versus 60.5%, P = .009), although median concussion knowledge scores were higher for White parents than for Black parents (40 versus 37, P < .001). Few associations were found for social context factors with concussion knowledge, attitudes, and communication in Black and White parents separately.

CONCLUSIONS

Among MS parents, race and ethnicity may not influence the association between social context factors and concussion-related knowledge, attitudes, or communication. However, differences were present by race and ethnicity regarding previous concussion education and other parental outcomes, concussion symptom knowledge in particular.

Change in health-related quality of life and functional disability over time post-concussion in youth

PURPOSE

Concussions can have detrimental on children's cognitive, emotional, behavioral, and/or social functioning. We sought to examine changes in health-related quality of life (HRQOL) and functional disability from pre-injury to 1-week post-concussion, and to symptom resolution among youth ages 11-17 with a concussion.

METHODS

In this prospective, longitudinal cohort study, 83 concussed youth, ages 11-17, self-reported post-concussion symptoms daily as well as HRQOL and functional disability at baseline (pre-injury, retrospective), 1-week post-concussion, and symptom resolution. We modeled changes in overall and sub-scale HRQOL and functional disability scores over time from pre-injury to 1-week post-concussion and from 1-week post-concussion to symptom resolution using a piecewise linear mixed model, adjusting for potential covariables. Estimated fixed effects with a corresponding adjusted coefficient (beta), along with their 95% confidence intervals are presented.

RESULTS

Overall HRQOL worsened from pre-injury to 1-week post-injury (β = - 5.40, 95%CI - 9.22, - 1.58) but did not change from 1-week post-injury to symptom resolution. Physical HRQOL worsened from pre-injury to 1-week post-injury (β = - 9.90, 95%CI - 14.65, - 5.14) but improved from 1-week post-injury to symptom resolution (β = 1.64, 95%CI 0.50, 2.78), while psychosocial HRQOL showed no change over time. Functional disability worsened from pre-injury to 1-week post-injury (β = 8.36, 95%CI 5.93, 10.79) but with no change from 1-week post-injury to symptom resolution. Youth with symptom duration > 14 days reported worse HRQOL and functional disability than those who recovered in ≤ 14 days and greater daily post-concussion symptom scores were associated with worse HRQOL and functional disability.

CONCLUSION

Concussions have a negative impact on overall and physical HRQOL and functional disability in youth acutely post-injury. Ratings of HRQOL could be used to inform clinical treatment decisions to assist with the recovery process.

The Influence of the Family Functioning and Social Relationships on Child Participation After Traumatic Brain Injury

PURPOSE

To describe the relationship amongst child and family characteristics (e.g. social relationships, family functioning) and child participation after traumatic brain injury (TBI) an average of 2.65 years post-TBI (SD = 2.12).

METHOD

Cross-sectional, secondary analysis of data collected as part of a larger research project.

RESULTS

N = 44 children with TBI. Analysis revealed statistically significant correlations between child participation, family functioning, and child characteristics.

CONCLUSIONS

School-aged children with TBI might experience chronic participation restrictions, associated with challenges in family functioning. Professionals can support children with TBI and their families through follow-up services that include a focus on family-based interventions to better support long-term outcomes for this population.

A Template for Translational Bioinformatics: Facilitating Multimodal Data Analyses in Preclinical Models of Neurological Injury

Background

Pediatric neurological injury and disease is a critical public health issue due to increasing rates of survival from primary injuries (e.g., cardiac arrest, traumatic brain injury) and a lack of monitoring technologies and therapeutics for the treatment of secondary neurological injury. Translational, preclinical research facilitates the development of solutions to address this growing issue but is hindered by a lack of available data frameworks and standards for the management, processing, and analysis of multimodal data sets.

Methods

Here, we present a generalizable data framework that was implemented for large animal research at the Children's Hospital of Philadelphia to address this technological gap. The presented framework culminates in an interactive dashboard for exploratory analysis and filtered data set download.

Results

Compared with existing clinical and preclinical data management solutions, the presented framework accommodates heterogeneous data types (single measure, repeated measures, time series, and imaging), integrates data sets across various experimental models, and facilitates dynamic visualization of integrated data sets. We present a use case of this framework for predictive model development for intra-arrest prediction of cardiopulmonary resuscitation outcome.

Conclusions

The described preclinical data framework may serve as a template to aid in data management efforts in other translational research labs that generate heterogeneous data sets and require a dynamic platform that can easily evolve alongside their research.

Speech-Language Pathology Treatment of Cognitive-Communication Deficits in School-Aged Children With Traumatic Brain Injury: A Scoping Review

PURPOSE

The purpose of this scoping review was to synthesize the current evidence-based treatment practices used with school-aged children with any severity of traumatic brain injury (TBI) that could benefit the practice of speech-language pathologists (SLPs).

METHOD

A scoping review of the literature was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews guidelines. Included studies were assigned thematic labels based on a modified version of the Rehabilitation Treatment Specification System.

RESULTS

A total of 27 articles that covered 16 different treatment approaches met inclusion criteria for this study. Most studies included adolescent or teenage participants with moderate-severe TBIs. Treatment targets included executive functioning (n = 15), social competence (n = 6), postconcussive symptoms (n = 5), behavior (n = 3), family functioning (n = 1), and health-related quality of life (n = 1). The majority of current interventions for school-aged children with TBI include a multidisciplinary approach and components of family involvement education.

CONCLUSIONS

Further research is needed on interventions that are specifically implemented by SLPs as well as protocols that include more heterogeneous samples (e.g., varied sociodemographic factors and injury severity) to allow for the development and testing of ecologically valid intervention practice. SLPs can use the results of this scoping review to individualize treatment based on the child's areas of need while considering individual characteristics and to provide person-centered intervention for children with school-aged TBI.

Are Self-Reported and Parent-Reported Attention Problems and Hyperactivity Associated With Higher Rates of Concussion in Youth Ice Hockey Players?

OBJECTIVE

To examine the association between self-reported and parent-reported attention problems and hyperactivity and rates of injury and concussion in Canadian youth ice hockey players.

DESIGN

Secondary analyses of 2 prospective cohort studies.

SETTING

Canadian youth ice hockey teams.

PARTICIPANTS

Ice hockey players (ages 11-17 years) were recruited by team, over 4 seasons (2011-2016). A combined 1709 players contributing 1996 player-seasons were analyzed (257 players participated in more than one season).

ASSESSMENT OF RISK FACTORS

Data were collected from preseason baseline questionnaires, including child and parent proxy forms of the Behavior Assessment System for Children, second edition.

MAIN OUTCOME MEASURES

Injury and concussion rates and incidence rate ratios (IRR) comparing players with and without self-identified or parent-identified attention problems and hyperactivity, adjusted for covariates (ie, body checking policy, previous injury/concussion, and age) and a random effect for team, were estimated using multiple multilevel negative binomial regression.

RESULTS

When analyzed continuously, rates of concussion increased with higher self-reported and parent-reported measures of attention problems [IRR SELF = 1.025; 95% confidence interval (CI): 1.011-1.040; IRR PARENT = 1.032; 95% CI: 1.008-1.057]. Self-reported hyperactivity was significantly associated with concussion (IRR = 1.021; 95% CI: 1.007-1.035), but parent-reported hyperactivity was not (IRR = 1.005; 95% CI: 0.983-1.028). A T score ≥ 60 cutoff combining attention problems and hyperactivity scores (an estimate of probable attention-deficit hyperactivity disorder) was not significantly associated with rates of injury or concussion.

CONCLUSIONS

Attention problems and hyperactivity may place youth ice hockey players at increased risk of concussion and injury. Preseason assessments could identify players for targeted concussion education and risk reduction strategies.

Use of sport-related concussion information sources among parents of United States middle school children

OBJECTIVE

Parents may use various information sources to obtain information about sport-related concussions (SRC). This study examined SRC-related information sources used by parents of United States middle school children (age: 10-15 years).

METHODS

A panel of 1083 randomly selected U.S. residents, aged ≥18 years and identifying as parents of middle school children, completed an online questionnaire capturing parental and child characteristics, and utilization and perceived trustworthiness of various sources of SRC-related information. Multivariable logistic regression models identified factors associated with utilizing each source. Adjusted odds ratios (OR) with 95% confidence intervals (95%CIs) excluding 1.00 were deemed significant.

RESULTS

Doctors/healthcare providers (49.9%) and other healthcare-related resources (e.g., Centers for Disease Control and Prevention, WebMD) (37.8%) were common SRC-related information sources; 64.0% of parents utilized ≥1 of these sources. Both sources were considered "very" or "extremely" trustworthy for SRC-related information among parents using these sources (doctors/healthcare providers: 89.8%; other healthcare-related resources: 70.9%). A 10-year increase in parental age was associated with higher odds of utilizing doctors/healthcare providers (adjusted odd ratio (OR_adjusted) = 1.09, 95%CI: 1.02-1.16) and other healthcare-related resources (OR_adjusted = 1.11, 95%CI: 1.03-1.19). The odds of utilizing doctors/healthcare providers (OR_adjusted = 0.58, 95%CI: 0.40-0.84) and other healthcare-related resources (OR_adjusted = 0.64, 95%CI: 0.44-0.93) were lower among parents whose middle school children had concussion histories versus the parents of children who did not have concussion histories.

CONCLUSION

One-third of parents did not report using doctors/healthcare providers or other healthcare-related resources for SRC-related information. Factors associated with underutilization of these sources may be targets for future intervention. Continuing education for healthcare providers and educational opportunities for parents should highlight accurate and up-to-date SRC-related information.

Back to School: Academic Functioning and Educational Needs among Youth with Acquired Brain Injury

Youth with a history of traumatic or non-traumatic acquired brain injury are at increased risk for long-lasting cognitive, emotional, behavioral, social, and physical sequelae post-injury. Such sequelae have great potential to negatively impact this population’s academic functioning. Consistently, poorer academic achievement and elevated need for educational supports have been well-documented among youth with a history of acquired brain injury. The current paper reviews the literature on neuropsychological, psychiatric, and academic outcomes of pediatric acquired brain injury. A discussion of special education law as it applies to this patient population, ongoing limitations within the field, and a proposal of solutions are also included.

Speech-Language Pathology Assessment of School-Age Children With Traumatic Brain Injury: A Scoping Review

PURPOSE

The purpose of this study was to describe evidenced-based assessment practices for school-age children with any severity of traumatic brain injury (TBI) that could inform the practice of speech-language pathologists (SLPs).

METHOD

A scoping review of the literature was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews guidelines. Included studies were assigned thematic labels related to the International Classification of Functioning, Disability and Health framework.

RESULTS

A total of 30 articles met inclusion criteria for this study. Most studies included adolescent or teenage participants with mild TBIs in the acute stages of recovery. Twenty-two different assessments were reported on for children with TBI addressing body structure/function (n = 19 assessments), activities and participation (n = 1 assessment), and contextual factors (n = 3 assessments).

CONCLUSIONS

Current assessments have a clear focus on body structure/function for adolescents after childhood TBI, with little research evidence to address activities and participation or contextual factors. The limited amount of functional assessments directly related to the SLP scope of practice stresses the need for additional research on ecologically valid and comprehensive assessment approaches for school-age children with TBI. The results of this review could be utilized as a resource in providing theoretical, evidence-based, and person-centered evaluation methods for children with TBI.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.20422170.

Effect of Hypothermia Therapy on Children with Traumatic Brain Injury: A Meta-Analysis of Randomized Controlled Trials

Hypothermia therapy is a promising therapeutic strategy for traumatic brain injury (TBI); however, some trials have shown that hypothermia therapy has a negative effect on patients with TBI. The treatment of hypothermia in children with TBI remains controversial. We conducted a search of six online databases to validate the literature on comparing hypothermia with normal therapy for children with TBI. Eight randomized controlled trials (514 patients) were included. The meta-analysis indicated that hypothermia therapy may increase the Glasgow Outcome Scale (GOS) scores. However, in terms of improving the rate of complications, intracranial pressure (ICP), mortality, cerebral perfusion pressure (CPP), and length of stay both in hospital as well as pediatric ICU, the difference was not statistically significant. Hypothermia therapy may have clinical advantages in improving the GOS scores in children with TBI compared with normothermic therapy, but hypothermia therapy may have no benefit in improving the incidence of complications, ICP, mortality, CPP, and length of stay both in pediatric ICU as well as hospital. The decision to implement hypothermia therapy for children with TBI depends on the advantages and disadvantages from many aspects and these must be considered comprehensively.

A systematic review on integrated care for traumatic brain injury, mental health, and substance use

Traumatic brain injuries (TBI) and mental health or substance use disorders (MHSU) are global public health concerns due to their prevalence and impact on individuals and societies. However, care for individuals with TBI and MHSU remains fragmented with a lack of appropriate services and supports across the continuum of healthcare. This systematic review provided an evidence-based foundation to inform opportunities to mobilize and adapt existing resources to integrate care for individuals with TBI and MHSU by comprehensively summarizing existing integrated activities and reported barriers and facilitators to care integration. MEDLINE, EMBASE, PsycINFO, CINAHL, Cochrane Central Register of Controlled Trials, Sociological Abstracts, and Dissertations & Theses Global were independently reviewed by two reviewers based on pre-determined eligibility criteria. Data on the integration activity, level and type of integration, reported barriers and facilitators, and the strategies aligning with the World Health Organization’s (WHO) Framework on Integrated Person-Centred Care were extracted to form the basis for a narrative synthesis. Fifty-nine peer-reviewed articles were included, describing treatments (N = 49), programs (N = 4), or screening activities (N = 7). Studies discussing clinical integration at the micro- (N = 38) and meso- (N = 10) levels, service integration at the micro- (N = 6) and meso- (N = 5) levels, and functional integration at the meso-level (N = 1) were identified. A minority of articles reported on facilitators (e.g., cognitive accommodations in treatment plans; N = 7), barriers (e.g., lack of education on cognitive challenges associated with TBI; N = 2), or both (N = 6), related to integrating care. This review demonstrated that integrated TBI and MHSU care already exists across a range of levels and types. Given the finite and competing demands for healthcare resources, cognitive accommodations across treatment plans to facilitate integrated TBI and MHSU care should be considered. Multidisciplinary teams should also be explored to provide opportunities for education among health professionals so they can be familiar with TBI and MHSU.

Trial registration: Prospero Registration: CRD42018108343.

Gaps in concussion management across school-aged children

OBJECTIVE

Examine how demographic and injury factors impact identification and management of concussion in students.

METHODS

Prospective observational cohort. Pre-K - 12th grade students within a large, urban school district reported to school with concussion during 2015-2019. Participants were grouped into Elementary/Middle School (E/MS) and High School (HS) and compared by sex, concussion history, injury setting and mechanism, time to medical evaluation and clearance, absences, and recommended accommodations.

RESULTS

154 E/MS and 230 HS students reported to school with physician-diagnosed concussion. E/MS students experienced fewer concussions at school and from sports than HS. More E/MS males than females sustained concussions, while this difference was reversed for HS. Time-to-evaluation was longer for E/MS, specifically female E/MS students and those injured outside of school. E/MS males were cleared more quickly than females. In contrast, no differences were found between sexes for HS by injury setting, mechanism of injury, or management factors.

CONCLUSION

Differences observed in E/MS students by demographic and injury factors are not observed in HS students. Younger students, particularly females or those not injured in school or sports, may be at risk for delayed identification and prolonged time to clearance. Future research should further characterize concussion management in E/MS children.

Estimated incidence and case fatality rate of traumatic brain injury among children (0-18 years) in Sub-Saharan Africa. A systematic review and meta-analysis

INTRODUCTION

Studies from Sub-Saharan Africa (SSA) countries have reported on the incidence and case fatality rate of children with Traumatic Brain Injury (TBI). However, there is lack of a general epidemiologic description of the phenomenon in this sub-region underpinning the need for an accurate and reliable estimate of incidence and outcome of children (0-18 years) with TBI. This study therefore, extensively reviewed data to reliably estimate incidence, case fatality rate of children with TBI and its mechanism of injury in SSA.

METHODS

Electronic databases were systematically searched in English via Medline (PubMed), Google Scholar, and Africa Journal Online (AJOL). Two independent authors performed an initial screening of studies based on the details found in their titles and abstracts. Studies were assessed for quality/risk of bias using the modified Newcastle-Ottawa Scale (NOS). The pooled case fatality rate and incidence were estimated using DerSimonian and Laird random-effects model (REM). A sub-group and sensitivity analyses were performed. Publication bias was checked by the funnel plot and Egger's test. Furthermore, trim and fill analysis was used to adjust for publication bias using Duval and Tweedie's method.

RESULTS

Thirteen (13) hospital-based articles involving a total of 40685 participants met the inclusion criteria. The pooled case fatality rate for all the included studies in SSA was 8.0%; [95% CI: 3.0%-13.0%], and the approximate case fatality rate was adjusted to 8.2%, [95% CI:3.4%-13.0%], after the trim-and-fill analysis was used to correct for publication bias. A sub-group analysis of sub-region revealed that case fatality rate was 8% [95% CI: 2.0%-13.0%] in East Africa, 1.0% [95% CI: 0.1% -3.0%] in Southern Africa and 18.0% [95% CI: 6.0%-29.0%] in west Africa. The pooled incidence proportion of TBI was 18% [95% CI: 2.0%-33.0%]. The current review showed that Road Traffic Accident (RTA) was the predominant cause of children's TBI in SSA. It ranged from 19.1% in South Africa to 79.1% in Togo.

CONCLUSION

TBI affects 18% of children aged 0 to 18 years, with almost one-tenth dying in SSA. The most common causes of TBI among this population in SSA were RTA and falls. TBI incidence and case fatality rate of people aged 0-18 years could be significantly reduced if novel policies focusing on reducing RTA and falls are introduced and implemented in SSA.

Epidemiology of Chronic Effects of Traumatic Brain Injury

Although many patients diagnosed with traumatic brain injury (TBI), particularly mild TBI, recover from their symptoms within a few weeks, a small but meaningful subset experience symptoms that persist for months or years after injury and significantly impact quality of life for the person and their family. Factors associated with an increased likelihood of negative TBI outcomes include not only characteristics of the injury and injury mechanism, but also the person’s age, pre-injury status, comorbid conditions, environment, and propensity for resilience. In this article, as part of the Brain Trauma Blueprint: TBI State of the Science framework, we examine the epidemiology of long-term outcomes of TBI, including incidence, prevalence, and risk factors. We identify the need for increased longitudinal, global, standardized, and validated assessments on incidence, recovery, and treatments, as well as standardized assessments of the influence of genetics, race, ethnicity, sex, and environment on TBI outcomes. By identifying how epidemiological factors contribute to TBI outcomes in different groups of persons and potentially impact differential disease progression, we can guide investigators and clinicians toward more-precise patient diagnosis, along with tailored management, and improve clinical trial designs, data evaluation, and patient selection criteria.

Community reintegration needs following paediatric brain injury: perspectives of caregivers and service providers

PURPOSE

To explore the processes of community reintegration of children and families at least one year following a paediatric brain injury from the perspective of caregivers and outpatient/community service providers.

MATERIALS AND METHODS

A qualitative analysis of semi-structured interviews from outpatient or community service providers (N = 14; occupational, physical, and speech and language therapists, neuropsychologists, school counsellors, recreational providers) and caregivers of six children (N = 8) at least one year after their injury. Interviews were transcribed and thematically coded using deductive (employing Bronfenbrenner's ecological systems theory) and inductive approaches.

RESULTS

Themes from both providers and caregivers indicated additional supports needed at all levels of Bronfenbrenner's ecological systems theory (i.e., individual, microsystem, mesosystem/exosystem, macrosystem, chronosystem). Participants felt that several characteristics would be needed in an ideal service system following paediatric brain injury including: community solutions ("it takes a village"), long-term approaches to care, and new financial approaches.

CONCLUSIONS

The results suggest that children and families have substantial community reintegration needs following paediatric brain injury. Multi-system interventions are needed to support long-term community reintegration, especially those that increase communication and support transitions. There is also a strong need for alternative funding to support these efforts.Implications for RehabilitationFamilies with a child with a moderate to severe brain injury face challenges with community reintegration a year or more after their child's injury.Effort should be put into helping families navigate the complex medical, insurance, and school systems with a navigator service and step-down care to ensure a continuum of care and to support community reintegration.Special support should be provided during transitions, such as transitions from hospital care to outpatient care, and across school transitions.

Reading Abilities Post Traumatic Brain Injury in Adolescents and Adults: A Systematic Review and Meta-Analysis

Purpose People with traumatic brain injury (TBI) often struggle with complex reading, limiting participation in work and educational settings. This systematic review and meta-analysis examined studies of reading conducted with adolescents and adults with TBI to describe reading problems post TBI and investigate underlying factors for the effects of TBI on reading abilities. Method The search was conducted in EBSCO (including MEDLINE, PsycINFO, etc.), BIOSIS, ProQuest, and Web of Science. Empirical studies that used samples with a mean age greater than 10 years, reported injury characteristics, and investigated complex reading abilities (defined as greater than single-word reading) were eligible for this review. Study quality was evaluated using QualSyst. Study and sample characteristics, measures, and outcomes of interest were extracted and synthesized in the review. Studies that compared reading abilities between people with and without TBI were included in the meta-analysis. Results Twenty-four studies met inclusion criteria, six of which addressed reading in pediatric samples. Findings from heterogeneous samples supported the existence of reading deficits post TBI, including mild TBI. In studies of children, comprehension was examined most frequently, whereas reading speed was the focus of most adult studies. Oculomotor functions and processing speed were related to reading speed; cognitive functions, such as attention and memory, were associated with reading comprehension. Intervention studies were limited, but most reported positive effects. The meta-analysis confirmed the impact of TBI on reading with a large effect size (g = 1.23). Demographic, injury, and study variables did not moderate overall reading outcomes, but male sex was a significant moderator of impairment in reading speed. Discussion Global reading ability, including both comprehension and speed, is negatively impacted by TBI. Future research should continue to explore reading after TBI, including its underlying mechanisms, effects on complex reading activities such as inferencing, development of screening and assessment tools that address a range of functional reading needs, and efficacy of reading-related interventions.

Sports- and Physical Activity-Related Concussion and Risk for Youth Violence

INTRODUCTION

Sports and physical activities are an important cause of traumatic brain injury among adolescents. Childhood traumatic brain injury has been associated with cognitive impairment, emotional problems, and impaired behavior control, and these neuropsychological changes may place these youth at increased risk for engagement in violence-related behaviors.

METHODS

Data from the 2017 National Youth Risk Behavior Survey (N=14,765), a nationally representative survey of U.S. high school students, were analyzed in 2019 to examine the associations between sports- and physical activity-related concussion and violence-related behaviors occurring in the community and at school. Multivariable logistic regression models were used to calculate sex-stratified, adjusted (for race/ethnicity, grade, athlete status, impaired cognitive functioning, feeling sad/hopeless, and current substance use) prevalence ratios. Prevalence ratios were considered statistically significant if p<0.05.

RESULTS

Male students (17.1%) were more likely than female students (13.0%) to experience a sports- and physical activity-related concussion during the 12 months preceding the survey. Compared with students who did not have a concussion, those who experienced ≥1 sports- and physical activity-related concussion were more likely to be in a physical fight (male students, adjusted prevalence ratio=1.45; female students, adjusted prevalence ratio=1.55), carry a weapon (male students, adjusted prevalence ratio=1.24; female students, adjusted prevalence ratio=1.79), and fight at school (male students, adjusted prevalence ratio=1.40; female students, adjusted prevalence ratio=1.77). In addition, male students were more likely to carry a gun (adjusted prevalence ratio=1.62) and carry a weapon at school (adjusted prevalence ratio=1.73).

CONCLUSIONS

Although the direction of these associations is unknown, return-to-school programs may benefit from inclusion of assessment and counseling around issues of psychological and social functioning, conflict resolution, and coordination with violence prevention programs.

Return to School Following TBI: Educational Services Received 1 Year After Injury

BACKGROUND

Many children who experience a traumatic brain injury (TBI) return to school without receiving needed support services.

OBJECTIVE

To identify services received and predictors of formal special education services (ie, Individualized Education Plan [IEP]) for students with TBI 1 year after returning to school.

SETTING AND PARTICIPANTS

A total of 74 students with TBI recruited from children's hospitals in Colorado, Ohio, and Oregon.

DESIGN

Secondary analysis of previously reported randomized control trials with surveys completed by caregivers when students returned to school (T1) and 1 year later (T2). This study reports data collected at T2.

RESULTS

While 45% of students with TBI reported an IEP 1 year after returning to school, nearly 50% of students received informal or no services. Male students, those who sustained a severe TBI, and students whose parents reported domain-specific concerns were more likely to receive special education services at 1 year. In a multivariate model, sex remained the only significant predictor of IEP services at T2.

CONCLUSIONS

Females and students with less severe or less visible deficits were less likely to receive special education services. While transition services may help students obtain special education for the first year after TBI, identifying students with TBI who have subtle or later-developing deficits remains a challenge.

Traumatic Brain Injury and School Readiness Among Preschool-Aged Children in the United States

BACKGROUND

The aim of this study is to examine the association between traumatic brain injury (TBI) and school readiness using a nationally representative sample of preschool-aged children in the United States.

METHODS

Using data on 15,402 preschool-aged children (ages three to five years) from the 2016 to 2018 cohorts of the National Survey of Children's Health, this study investigates the association between lifetime measure of TBI in children and four domains of school readiness: early learning skills, self-regulation, social-emotional development, and physical health/motor development.

RESULTS

Among this sample of preschool-aged children, 252 (1.64%) had experienced a TBI during their lifetime. Within school readiness domains, TBI was associated with a 62% to 99% increase in the rate of needs support/at-risk items and a 129% to 322% increase in the rate of at-risk items, contingent on the exact domain examined. Additional analyses reveal that, net of covariates, TBI reduced the predicted probability of being on-track across all four domains from approximately 0.424 for children with no history of TBI to 0.224 for children with a history of TBI.

CONCLUSIONS

A history of TBI was associated with reductions in school readiness within and across domains. Facilitating better communication between parents, pediatricians, and schools about both TBI and responses to TBI may result in the implementation of services and individualized, tailored instructional approaches that can improve educational outcomes.

Comparing prevalence estimates of concussion/head injury in U.S. children and adolescents in national surveys

BACKGROUND AND OBJECTIVES

Reports on pediatric lifetime concussions/head injuries (LCHI) from national surveys have offered estimates on prevalence that range from 2.5% to 18% in the general population. The purpose of this study is to examine national surveys to compare methodologies and limitations pertaining to LCHI data collection.

METHODS

Three nationally representative surveys that measure LCHI in children, including the National Survey of Children's Health, the National Health Interview Survey, and the Monitoring the Future Survey were examined. Children were grouped by ages 3-17 years and adolescent ages 13-17 years, stratified by selected demographic characteristics. Participants in the surveys included parents (NSCH and NHIS) and adolescents (MTF survey). The primary outcome measure is an estimate of LCHI in children.

RESULTS

Estimates of prevalence of LCHI ranged from 3.6% to 7.0% for children ages 3-17 years and from 6.5% to 18.3% for adolescents 13-17 years. Survey modality, question wording, and respondent may contribute to differing estimates. Prevalence showed consistent variation by age, sex, and race/ethnicity across surveys. Associations were inconsistent between LCHI and insurance status, parental education, and household primary language.

CONCLUSIONS

Although there are methodological differences in capturing pediatric LCHI across surveys, the prevalence estimates and correlational associations generated can offer awareness about the burden of these injuries and insights to research and clinical care.

Head, Neck, and Traumatic Brain Injury Among Children Involved in Sports: Results From the Adolescent Brain Cognitive Development Study

PURPOSE

The purpose of this study was to assess the prevalence of head and neck injury (HNI) requiring hospitalization or emergency care and traumatic brain injury with loss of consciousness (TBI-LOC) among youth athletes and nonathletes (ages 9-10 years) using the baseline cohort of the Adolescent Brain Cognitive Development study.

METHODS

National data from the baseline cohort of the Adolescent Brain Cognitive Development study (2016-2018; n = 11,869) were analyzed.

RESULTS

The analysis found that 12.1% of the sample indicated HNI during their lifetime, while .8% indicated TBI-LOC. Participation in multiple sports (adjusted prevalence rate ratio [aPRR] = 1.29, 95% confidence interval [CI] = 1.06,1.55), contact sports (aPRR = 1.19, 95% CI = 1.05,1.34), and who had participated in sport for five or more years (aPRR = 1.42, 95% CI =1.16,1.73) had modestly higher prevalence rate ratios of reporting HNI compared to nonparticipants. Sport participation was not found to be associated with TBI-LOC.

CONCLUSIONS

The study provides needed epidemiological information on the prevalence of HNI and TBI-LOC among younger adolescents who participate in sports. While the risk of TBI-LOC appears to be low among youth athletes and nonathletes, the risk of more serious head injuries may increase due to length of participation in sport and involvement in high contact sports.

A Comprehensive Overview of the Physical Health of the Adolescent Brain Cognitive Development Study Cohort at Baseline

Physical health in childhood is crucial for neurobiological as well as overall development, and can shape long-term outcomes into adulthood. The landmark, longitudinal Adolescent Brain Cognitive Development Study^SM (ABCD study^®), was designed to investigate brain development and health in almost 12,000 youth who were recruited when they were 9-10 years old and will be followed through adolescence and early adulthood. The overall goal of this paper is to provide descriptive analyses of physical health measures in the ABCD study at baseline, including but not limited to sleep, physical activity and sports involvement, and body mass index. Further this summary will describe how physical health measures collected from the ABCD cohort compare with current normative data and clinical guidelines. We propose this data set has the potential to facilitate clinical recommendations and inform national standards of physical health in this age group. This manuscript will also provide important information for ABCD users and help guide analyses investigating physical health including new avenues for health disparity research as it pertains to adolescent and young adult development.

Kids' Outcomes And Long-term Abilities (KOALA): protocol for a prospective, longitudinal cohort study of mild traumatic brain injury in children 6 months to 6 years of age

INTRODUCTION

Mild traumatic brain injury (mTBI) is highly prevalent, especially in children under 6 years. However, little research focuses on the consequences of mTBI early in development. The objective of the Kids' Outcomes And Long-term Abilities (KOALA) study is to document the impact of early mTBI on children's motor, cognitive, social and behavioural functioning, as well as on quality of life, stress, sleep and brain integrity.

METHODS AND ANALYSES

KOALA is a prospective, multicentre, longitudinal cohort study of children aged 6 months to 6 years at the time of injury/recruitment. Children who sustain mTBI (n=150) or an orthopaedic injury (n=75) will be recruited from three paediatric emergency departments (PEDs), and compared with typically developing children (community controls, n=75). A comprehensive battery of prognostic and outcome measures will be collected in the PED, at 10 days, 1, 3 and 12 months postinjury. Biological measures, including measures of brain structure and function (magnetic resonance imaging, MRI), stress (hair cortisol), sleep (actigraphy) and genetics (saliva), will complement direct testing of function using developmental and neuropsychological measures and parent questionnaires. Group comparisons and predictive models will test the a priori hypotheses that, compared with children from the community or with orthopaedic injuries, children with mTBI will (1) display more postconcussive symptoms and exhibit poorer motor, cognitive, social and behavioural functioning; (2) show evidence of altered brain structure and function, poorer sleep and higher levels of stress hormones. A combination of child, injury, socioenvironmental and psychobiological factors are expected to predict behaviour and quality of life at 1, 3 and 12 months postinjury.

ETHICS AND DISSEMINATION

The KOALA study is approved by the Sainte-Justine University Hospital, McGill University Health Centre and University of Calgary Conjoint Health Research Ethics Boards. Parents of participants will provide written consent. Dissemination will occur through peer-reviewed journals and an integrated knowledge translation plan.

ADHD: Current Concepts and Treatments in Children and Adolescents

Attention deficit hyperactivity disorder (ADHD) is among the most frequent disorders within child and adolescent psychiatry, with a prevalence of over 5%. Nosological systems, such as the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5) and the International Classification of Diseases, editions 10 and 11 (ICD-10/11) continue to define ADHD according to behavioral criteria, based on observation and on informant reports. Despite an overwhelming body of research on ADHD over the last 10 to 20 years, valid neurobiological markers or other objective criteria that may lead to unequivocal diagnostic classification are still lacking. On the contrary, the concept of ADHD seems to have become broader and more heterogeneous. Thus, the diagnosis and treatment of ADHD are still challenging for clinicians, necessitating increased reliance on their expertise and experience. The first part of this review presents an overview of the current definitions of the disorder (DSM-5, ICD-10/11). Furthermore, it discusses more controversial aspects of the construct of ADHD, including the dimensional versus categorical approach, alternative ADHD constructs, and aspects pertaining to epidemiology and prevalence. The second part focuses on comorbidities, on the difficulty of distinguishing between "primary" and "secondary" ADHD for purposes of differential diagnosis, and on clinical diagnostic procedures. In the third and most prominent part, an overview of current neurobiological concepts of ADHD is given, including neuropsychological and neurophysiological researches and summaries of current neuroimaging and genetic studies. Finally, treatment options are reviewed, including a discussion of multimodal, pharmacological, and nonpharmacological interventions and their evidence base.

State-Level Numbers and Rates of Traumatic Brain Injury-Related Emergency Department Visits, Hospitalizations, and Deaths by Age, 2014

OBJECTIVE

To provide state-level traumatic brain injury (TBI)-related emergency department (ED) visit, hospitalization, and death estimates by age group for 2014.

SETTING AND PARTICIPANTS

Centers for Disease Control and Prevention's Core Violence and Injury Prevention Program and State Injury Indicators-participating states.

DESIGN

Cross-sectional.

MAIN MEASURES

Number and population-based incidence rates of TBI-related ED visits, hospitalizations, and deaths by age group-children and young adults (0-24 years), adults (25-64 years), and older adults (≥65 years)-in 36 states.

RESULTS

South Dakota had the lowest rates of TBI-related ED visits for all age groups-children and young adults: 566.2 (95% CI: 539.2-593.3) per 100 000; adults: 269.2 (95% CI: 253.0-285.4) per 100 000; and older adults: 324.3 (95% CI: 293.4-355.2) per 100 000. Rhode Island had the lowest rate of TBI-related hospitalizations for children and young adults-25.9 (95% CI: 20.7-32.0) per 100 000. The lowest rate of TBI-related hospitalizations among adults and older adults was in Virginia-39.6 (95% CI: 37.7-41.4) per 100 000-and Ohio-129.3 (95% CI: 124.0-134.6) per 100 000-respectively. Maryland had the lowest rate of TBI-related deaths for children and young adults-3.1 (95% CI: 2.3-3.9) per 100 000. Rhode Island had the lowest rate of TBI-related deaths for adults-7.2 (95% CI: 5.2-9.8) per 100 000-and New Jersey had the lowest rate of TBI-related deaths for older adults-29.4 (95% CI: 26.5-32.4) per 100 000.

CONCLUSION

This analysis demonstrated that there are variations in TBI-related ED visits, hospitalizations, and deaths by age. State public health professionals may use these findings to develop state-based strategies to address TBI.

State-Level Numbers and Rates of Traumatic Brain Injury-Related Emergency Department Visits, Hospitalizations, and Deaths by Sex, 2014

OBJECTIVE

To provide state-level traumatic brain injury (TBI)-related emergency department (ED) visit, hospitalization, and death estimates by sex for 2014.

SETTING AND PARTICIPANTS

Centers for Disease Control and Prevention's Core Violence and Injury Prevention Program and State Injury Indicators-participating states.

DESIGN

Cross-sectional.

MAIN MEASURES

Number and rate of TBI-related ED visits, hospitalizations, and deaths (indicators) by sex in over 25 states.

RESULTS

Across all states that supplied data, males had higher rates of TBI-related ED visits, hospitalizations, and deaths than females. However, for some indicators, high rates for both sexes and low rates for both sexes appeared clustered in a specific region of the United States. There was also within-state variability in TBI rates by indicator and sex. For example, within-state variability between sexes ranged from as low as 2.8% for ED visits and as high as 335% for deaths.

CONCLUSION

TBI-related ED visits, hospitalizations, and deaths varied by state and by sex, and evidence was found for within-state variability in TBI rates by indicator and sex in 2014. Differences in TBI indicators by sex may have important implications for public health professionals implementing TBI prevention and care strategies at the state level.

Downregulation of Thbs4 caused by neurogenic niche changes promotes neuronal regeneration after traumatic brain injury

OBJECTIVE

Following brain injury, the neurogenic niche provides a permissive cue for iatrogenesis rather than neurogenesis; reactive astrocytes play essential roles in orchestrating this process, markedly forming a glial scar around the area of damaged brain tissue. The objective of this study was to alter the neurogenic niche at the injured cortex and study its impact on neurogenesis.

METHODS

We constructed a stromal cell-derived factor 1 (SDF-1) gradient matrix to attract reactive astrocytes to the glial scar core.

RESULTS

SDF-1 reacted with the astrocytes in the injured site. By changing the neurogenic niche of the injured part of the brain after traumatic brain injury (TBI), SDF-1 downregulated thrombospondin 4 (Thbs4) promoting neuronal cell regeneration and playing a beneficial role in nerve function recovery after brain injury.

DISCUSSION

The matrix we created in this study could attract and interact with reactive glial cells and, thus, we called it a glial pump. Using the glial pump, we identified a new mechanism of brain injury repair and neuronal regeneration after TBI, which relied on Thbs4 downregulation after the altered neurogenic niche promoted neuronal regeneration and functional recovery.

Describing the Composition of Individualized Education Plans for Students With Traumatic Brain Injury

Purpose The purpose of this study was to explore and describe the features of Individualized Education Plans (IEPs) for a cohort of students with traumatic brain injury (TBI) to help elucidate current special education practices for students with TBI. Method We obtained permission from administrators of a local school district of 41,000 students in a Midwestern state to review de-identified IEP records of students verified with TBI. We examined demographic information (i.e., cause and age at time of injury), IEP services and intensity, IEP goal categories, and previous verification status. Results Descriptive results support that intervention services were more intense for students with TBI with greater lengths of time postinjury. Target behaviors within goals were more often related to math and reading than to the cognitive processes that govern these skills, such as attention, memory, and executive functioning. Finally, more than a third of our sample had been verified with a disability and were receiving special education services via an IEP prior to their TBI. Conclusions This work represents an important first step in understanding the special education services for students with TBI. Future research should explore interventions that are ecologically valid for school-based settings and are developed to address the idiosyncratic deficits of students with TBI, particularly interventions that focus on the underlying cognitive processes experienced by these students.

Traumatic brain injury mortality among U.S. children and adolescents ages 0-19 years, 1999-2017

INTRODUCTION

To examine recent traumatic brain injury (TBI) mortality changes among Americans aged 0-19 years by sex, age, urbanicity, state, and intent/causes of injury.

METHOD

TBI mortality per 100,000 population and average annual percent changes (AAPCs), plus 95% confidence intervals (CIs) based on Joinpoint regression models.

RESULTS

Age-adjusted TBI mortality among Americans aged 0-19 years declined consistently, though at varying rates between 1999 and 2013 (AAPC = -4.8%, 95%CI: -6.3%, -3.2%), and then significantly increased from 4.42 per 100,000 population in 2013 to 5.17 per 100,000 population in 2017 (AAPC = 3.4%, 95% CI: 1.7%, 5.1%). During the study time period, boys, rural children, and youth aged 15-19 years had higher TBI mortality rates than girls, urban children, and younger children, respectively. TBI mortality from unintentional transport crashes decreased substantially in all age groups between 1999 and 2017, and especially from 1999 to 2010. TBI mortality from suicide increased significantly from 2008 to 2017 in the 10-14-year age group (AAPC = 14.6%, 95% CI: 12.6%, 16.6%) and from 2007 to 2017 in the 15-19-year age group (AAPC = 6.3%, 95% CI: 3.8%, 8.7%). Unintentional transport crashes were the leading cause of TBI-related mortality in 46 states in 1999, but by 2017, suicide became the first leading cause in 14 states.

CONCLUSIONS

Pediatric TBI mortality declined consistently between 1999 and 2013 and increased significantly from 2013 to 2017, driven primarily by the mortality decrease from unintentional transport crashes and increase in suicide mortality. The spectrum of leading causes of pediatric TBI mortality changed across age groups and over time from 1999 to 2017. Practical Applications: TBI mortality increases in the United States since 2013 are driven primarily by increasing suicide rates, a trend that merits the attention of policy-makers and injury researchers. Action should be taken to curb growing TBI mortality rates among adolescents aged 10-19 years.

New Insights into Oxidative Damage and Iron Associated Impairment in Traumatic Brain Injury

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Traumatic Brain Injury is considered one of the most prevalent causes of death around the world; more than seventy millions of individuals sustain the condition per year. The consequences of traumatic brain injury on brain tissue are complex and multifactorial, hence, the current palliative treatments are limited to improve patients’ quality of life. The subsequent hemorrhage caused by trauma and the ongoing oxidative process generated by biochemical disturbances in the in the brain tissue may increase iron levels and reactive oxygen species. The relationship between oxidative damage and the traumatic brain injury is well known, for that reason, diminishing factors that potentiate the production of reactive oxygen species have a promissory therapeutic use. Iron chelators are molecules capable of scavenging the oxidative damage from the brain tissue and are currently in use for ironoverload- derived diseases.

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Here, we show an updated overview of the underlying mechanisms of the oxidative damage after traumatic brain injury. Later, we introduced the potential use of iron chelators as neuroprotective compounds for traumatic brain injury, highlighting the action mechanisms of iron chelators and their current clinical applications.

Concussion and Academic Impairment Among U.S. High School Students

INTRODUCTION

Sports and physical activities are a frequent cause of traumatic brain injury, primarily concussions, among adolescents. These concussions may adversely affect students' ability to learn and impair academic achievement in educational settings.

METHODS

The 2017 Youth Risk Behavior Survey, conducted among a nationally representative sample of 14,765 U.S. high school students, was analyzed in 2018 to examine associations between self-reported sports- and physical activity-related concussions and symptoms of cognitive impairment (difficulty concentrating, remembering, or making decisions) and self-reported academic grades (mostly A's=4.0, mostly B's=3.0, mostly C's=2.0, mostly D's=1.0, mostly F's=0.0). Adjusted prevalence ratio and the difference in self-reported estimated grade point average were adjusted for sex, race/ethnicity, grade, and athlete status (participation on sports teams) and considered statistically significant if p<0.05.

RESULTS

Male students were more likely than female students (17.1% vs 13.0%), and athletes were more likely than nonathletes (21.4% vs 7.6%) to have a self-reported sports- and physical activity-related concussion in the 12 months preceding the survey. Students with a reported sports- and physical activity-related concussion were more likely than students without one to report symptoms of cognitive impairment regardless of whether they were male (adjusted prevalence ratio=1.49), female (adjusted prevalence ratio=1.37), athletes (adjusted prevalence ratio=1.45), or nonathletes (adjusted prevalence ratio=1.42). Self-reported grade point averagedecreased significantly from 3.14 among students who reported no concussions (referent), to 3.04 among students who reported a single concussion, and 2.81 among students who reported ≥2 concussions.

CONCLUSIONS

School-based programs are needed to monitor students' academic performance and provide educational support and resources to promote academic success following a concussion.

A Spatial Analysis of Health Disparities Associated with Antibiotic Resistant Infections in Children Living in Atlanta (2002-2010)

Background

Antibiotic resistant bacteria like community-onset methicillin resistant Staphylococcus aureus (CO-MRSA) have continued to cause infections in children at alarming rates and are associated with health disparities. Geospatial analyses of individual and area level data can enhance disease surveillance and identify socio-demographic and geographic indicators to explain CO-MRSA disease transmission patterns and risks.

Methods

A case control epidemiology approach was undertaken to compare children with CO-MRSA to a noninfectious condition (unintentional traumatic brain injury (uTBI)). In order to better understand the impact of place based risks in developing these types of infections, data from electronic health records (EHR) were obtained from CO-MRSA cases and compared to EHR data from controls (uTBI). US Census data was used to determine area level data. Multi-level statistical models were performed using risk factors determined a priori and geospatial analyses were conducted and mapped.

Results

From 2002-2010, 4,613 with CO-MRSA and 34,758 with uTBI were seen from two pediatric hospitals in Atlanta, Georgia. Hispanic children had reduced odds of infection; females and public health insurance were more likely to have CO-MRSA. Spatial analyses indicate significant 'hot spots' for CO-MRSA and the overall spatial cluster locations, differed between CO-MRSA cases and uTBI controls.

Conclusions

Differences exist in race, age, and type of health insurance between CO-MRSA cases compared to noninfectious control group. Geographic clustering of cases is distinct from controls, suggesting placed based factors impact risk for CO-MRSA infection.

The Speech-Language Pathologists' Role in Mild Traumatic Brain Injury for Early Childhood-, Preschool-, and Elementary School-Age Children: Viewpoints on Guidelines From the Centers for Disease Control and Prevention

Purpose Traumatic brain injury (TBI) impacts millions of children each year, with those between birth and 4 years of age being 1 of the highest incidence groups. To address gaps in service provision specifically for children with mild TBI (mTBI), the Centers for Disease Control and Prevention (CDC) recently released guidelines for providers. Method The goal of this commentary is to deliver viewpoints on the application of the CDC guidelines directly to speech-language pathology clinical practice, with special attention paid to assessment, symptom monitoring, and intervention using a family-centered approach to care for infants, toddlers, preschoolers, and early elementary students with mTBI. Results In all pediatric practice settings, speech-language pathologists (SLPs) are a critical component of the care team for children who experience mTBI and should participate in symptom monitoring, assessment, intervention, education, and advocacy for this population. Conclusions SLPs can use the CDC guidelines to advocate for their role in the care of young children with mTBI. In addition, SLPs can use the guidelines to create a framework for clinical care provision when working with young children with mTBI. Much work is needed to advance evidence-based practices for this population, and dissemination of current clinical practices could help to close this gap.

Neuroimmune responses in the developing brain following traumatic brain injury

Traumatic brain injury (TBI) is one of the leading causes of both acute and long-term morbidity in the pediatric population, leading to a substantial, long-term socioeconomic burden. Despite the increase in the amount of pre-clinical and clinical research, treatment options for TBI rely heavily on supportive care with very limited targeted interventions that improve the acute and chronic sequelae of TBI. Other than injury prevention, not much can be done to limit the primary injury, which consists of tissue damage and cellular destruction. Secondary injury is the result of the ongoing complex inflammatory pathways that further exacerbate tissue damage, resulting in the devastating chronic outcomes of TBI. On the other hand, some level of inflammation is essential for neuronal regeneration and tissue repair. In this review article we discuss the various stages of the neuroimmune response in the immature, pediatric brain in the context of normal maturation and development of the immune system. The developing brain has unique features that distinguish it from the adult brain, and the immune system plays an integral role in CNS development. Those features could potentially make the developing brain more susceptible to worse outcomes, both acutely and in the long-term. The neuroinflammatory reaction which is triggered by TBI can be described as a highly intricate interaction between the cells of the innate and the adaptive immune systems. The innate immune system is triggered by non-specific danger signals that are released from damaged cells and tissues, which in turn leads to neutrophil infiltration, activation of microglia and astrocytes, complement release, as well as histamine release by mast cells. The adaptive immune response is subsequently activated leading to the more chronic effects of neuroinflammation. We will also discuss current attempts at modulating the TBI-induced neuroinflammatory response. A better understanding of the role of the immune system in normal brain development and how immune function changes with age is crucial for designing therapies to appropriately target the immune responses following TBI in order to enhance repair and plasticity.