Airway transcriptome networks identify susceptibility to frequent asthma exacerbations in children.

BACKGROUND: Frequent asthma exacerbators, defined as those experiencing more than 1 hospitalization in a year for an asthma exacerbation, represent an important subgroup of individuals with asthma. However, this group remains poorly defined and understudied in children. OBJECTIVE: Our aim was to determine the molecular mechanisms underlying asthma pathogenesis and exacerbation frequency. METHODS: We performed RNA sequencing of upper airway cells from both frequent and nonfrequent exacerbators enrolled in the Ohio Pediatric Asthma Repository. RESULTS: Through molecular network analysis, we found that nonfrequent exacerbators display an increase in modules enriched for immune system processes, including type 2 inflammation and response to infection. In contrast, frequent exacerbators showed expression of modules enriched for nervous system processes, such as synaptic formation and axonal outgrowth. CONCLUSION: These data suggest that the upper airway of frequent exacerbators undergoes peripheral nervous system remodeling, representing a novel mechanism underlying pediatric asthma exacerbation.

Factors Associated With Residential Relocation and Effects on Early Childhood Development in a Low-Income Home Visitation Population.

Residential relocation (RR) is associated with behavior problems and cognitive delays in school-age children. Little is known regarding effects of RR on early childhood development. The data from this study were collected from 2011 to 2016 through the Cincinnati Home Injury Prevention and Literacy Promotion Trial. The purpose of the current study was to identify factors associated with RR and determine effects of RR on early childhood development in a cohort of mother/child dyads (n = 424). High RR was relocating ≥ 3 times over the 24-month study period. Differences in baseline characteristics and early childhood development, measured by the Ages and Stages Questionnaire (ASQ) and MacArthur Bates Communicative Development Inventory, according to relocations, were estimated by negative binomial regression and logistic regression, respectively. Participants moved on average 1.46 times over 24 months. Relocations decreased by 0.05 for each year of increasing maternal age. Mothers with college degrees moved 0.72 fewer times than those with a high school diploma or less. Mothers living alone moved 0.47 fewer times than their counterparts. Mothers who could not count on someone to loan them $1000 and those with food insecurity more (0.41) than their counterparts (0.50). Odds of scoring in the bottom-tertile for the communication domain of the ASQ was significantly higher in those relocating ≥ 3 times. High RR was associated with concern for delayed language development at 24-month follow-up in some, but not all models. Early intervention may be more successful if primary care physicians and community health professionals collaborate to link families at risk of high RR to relevant community based resources.

Shared reading quality assessment by parental report: preliminary validation of the DialogPR.

BACKGROUND: The American Academy of Pediatrics (AAP) recommends shared reading beginning as soon as possible after birth to promote healthy development. Shared reading quality can strongly influence outcomes, especially in children from low-SES households. Dialogic reading is a method developed to enhance verbal interactivity and engagement through book sharing, advocated by the AAP and clinic-based programs such as Reach Out and Read. There is no brief, validated, caregiver report measure of dialogic reading or shared reading quality currently available. METHODS: This cross-sectional study involved 49 healthy mother-child dyads (mean child age 4.5 yrs., SD = 0.6 yrs.) from 2 separate MRI-based studies. The DialogPR was administered by trained research coordinators following MRI, along with the READ subscale of the validated StimQ-P measure of home cognitive environment. The DialogPR consists of eight items developed in consultation with experts in early literacy, based on the PEER/CROWD dialogic reading conceptual model. Estimated reading level is 6th grade. Descriptive statistics were computed at both the item and scale levels. Modern theory Rasch methods were used to analyze all eight DialogPR items along with preliminary estimates of reliability and validity. RESULTS: Our combined sample involved 15 boys and 34 girls, and was diverse in terms of age, household income, and maternal education. DialogPR administration time was less than 2 min, with no problems reported. The DialogPR demonstrated strong internal consistency and reliability (Cronbach's alpha = 0.82), and criterion-related validity with the StimQ-P READ (Spearman's rho coefficient = 0.53). Rasch analysis revealed strong psychometric properties in terms of reliability, variability in item difficulty, and inter-item and item-measure correlations. CONCLUSIONS: Preliminary evidence suggests that the DialogPR may be an efficient means to assess shared reading quality and dialogic reading via caregiver report for clinical and research purposes, warranting further investigation.

Maternal supervision of children during their first 3 years of life: the influence of maternal depression and child gender.

OBJECTIVE: The present study examined the effect of child gender and maternal depressive symptoms on routine supervisory practices of mothers longitudinally. METHOD: Self-report supervision practices were obtained at various time points from 3 months through 3 years of age. RESULTS: From 3 to 36 months, the quantity of time mothers reported supervising decreased from 7.1 to 6.3 hours, and the proportion of time spent in an intense style decreased from 63 to 46%, whereas that spent in a peripheral style increased from 14 to 32%. Mothers reported more time supervising girls and a greater proportion of this was in an intense style. Mothers with elevated depressive symptoms reported more time supervising but a lower proportion in an intense style. CONCLUSION: Over the first 36 months of life, routine patterns of supervision change and these vary as a function of maternal depression symptoms and child gender. Implications for child injury risk are discussed.

Filaggrin loss-of-function variants are associated with atopic dermatitis phenotypes in a diverse, early-life prospective cohort.

Loss-of-function (LoF) variants in the filaggrin (FLG) gene are the strongest known genetic risk factor for atopic dermatitis (AD), but the impact of these variants on AD outcomes is poorly understood. We comprehensively identified genetic variants through targeted region sequencing of FLG in children participating in the Mechanisms of Progression of Atopic Dermatitis to Asthma in Children cohort. Twenty FLG LoF variants were identified, including 1 novel variant and 9 variants not previously associated with AD. FLG LoF variants were found in the cohort. Among these children, the presence of 1 or more FLG LoF variants was associated with moderate/severe AD compared with those with mild AD. Children with FLG LoF variants had a higher SCORing for Atopic Dermatitis (SCORAD) and higher likelihood of food allergy within the first 2.5 years of life. LoF variants were associated with higher transepidermal water loss (TEWL) in both lesional and nonlesional skin. Collectively, our study identifies established and potentially novel AD-associated FLG LoF variants and associates FLG LoF variants with higher TEWL in lesional and nonlesional skin.

What Have Mechanistic Studies Taught Us About Childhood Asthma?

Childhood asthma is a chronic heterogeneous syndrome consisting of different disease entities or phenotypes. The immunologic and cellular processes that occur during asthma development are still not fully understood but represent distinct endotypes. Mechanistic studies have examined the role of gene expression, protein levels, and cell types in early life development and the manifestation of asthma, many under the influence of environmental stimuli, which can be both protective and risk factors for asthma. Genetic variants can regulate gene expression, controlled partly by different epigenetic mechanisms. In addition, environmental factors, such as living space, nutrition, and smoking, can contribute to these mechanisms. All of these factors produce modifications in gene expression that can alter the development and function of immune and epithelial cells and subsequently different trajectories of childhood asthma. These early changes in a partially immature immune system can have dramatic effects (e.g., causing dysregulation), which in turn contribute to different disease endotypes and may help to explain differential responsiveness to asthma treatment. In this review, we summarize published studies that have aimed to uncover distinct mechanisms in childhood asthma, considering genetics, epigenetics, and environment. Moreover, a discussion of new, powerful tools for single-cell immunologic assays for phenotypic and functional analysis is included, which promise new mechanistic insights into childhood asthma development and therapeutic and preventive strategies.

Housing interventions and control of injury-related structural deficiencies: a review of the evidence.

Subject matter experts systematically reviewed evidence on the effectiveness of housing interventions that affect safety and injury outcomes, such as falls, fire-related injuries, burns, drowning, carbon monoxide poisoning, heat-related deaths, and noise-related harm, associated with structural housing deficiencies. Structural deficiencies were defined as those deficiencies for which a builder, landlord, or home-owner would take responsibility (ie, design, construction, installation, repair, monitoring). Three of the 17 interventions reviewed had sufficient evidence for implementation: installed, working smoke alarms; 4-sided isolation pool fencing; and preset safe hot water temperature. Five interventions needed more field evaluation, 8 needed formative research, and 1 was found to be ineffective. This evidence review shows that housing improvements are likely to help reduce burns and scalds, drowning in pools, and fire-related deaths and injuries.

Combinations of adverse childhood events and risk of postpartum depression among mothers enrolled in a home visiting program.

PURPOSE: The purpose of this study was to examine how combinations of adverse childhood events (ACEs) contribute to the risk of postpartum depression and the mediating role of prenatal social support. METHODS: The Adverse Childhood Experiences Scale Questionnaire and the Edinburgh Postnatal Depression Scale Questionnaire were used to measure the study's exposure and outcome. Among a cohort of 419 mothers enrolled in a home visiting (HV) program, latent class analyses were used to identify classes of ACEs exposure. General linear models assessed the risk of postpartum depression, and prenatal social support was examined as a mediator. RESULTS: Four distinct classes of ACE exposure were identified. On the Edinburgh Postnatal Depression scale, mothers who were classified in Classes 1-3 scored higher by 2.6-4.4 points compared with women in Class 0. ACE class was found to be indirectly associated with postpartum depression scores through prenatal social support. CONCLUSIONS: Identifying combinations of ACEs in an HV program has the potential to improve the characterization of ACEs among low-income perinatal women in the United States. Elucidating how these combinations contribute to the risk of postpartum depression has the potential to identify women at increased risk, which can help HV programs prioritize prevention efforts.

Comparing the frequency of unrecognized attention deficit hyperactivity disorder symptoms in injured versus noninjured patients presenting for care in the pediatric emergency department.

INTRODUCTION: Attention Deficit Hyperactivity Disorder (ADHD) is one of the most common pediatric mental health problems but often goes unrecognized. Children with ADHD have an increased risk of injuries. Whether injured children presenting to the emergency department (ED) have an increased frequency of unrecognized ADHD symptoms compared to noninjured children is not known. PURPOSE: Examine the association of medically unrecognized ADHD symptoms in injured compared to noninjured children presenting to a pediatric ED. METHODS: A prospective age- and sex-matched cross-sectional comparison design of parent reported ADHD symptoms based on the Vanderbilt Assessment Scale in injured and noninjured children ages 5 to 18 years. Families were excluded if ADHD was listed in the medical history by nurses or physicians or if the child was currently taking medications for ADHD. Injured children were matched with noninjured children who presented with medical complaints. Univariate and bivariate analyses were performed. Proportions of children with ADHD symptoms in injured and noninjured children were compared with the chi statistic. RESULTS: One hundred sixty-four mothers of children were enrolled into the study: 82 in the injured and 82 noninjured group. The frequency of parent reported ADHD symptoms was the same in the 2 groups (9.8%). CONCLUSIONS: Children presenting with injuries are no more likely than a noninjured age- and sex-matched group to have unrecognized ADHD based on parental screen. Targeting injured children for ADHD screening is not supported by this study.

Volunteer driven home safety intervention results in significant reduction in pediatric injuries: A model for community based injury reduction.

BACKGROUND: Home based injuries account for a significant number of injuries to children between 1 and 5years old. Evidence-based safety interventions delivered in the home with installation of safety equipment have been demonstrated to reduce injury rates. The aim of this study was to evaluate the impact of a community based volunteer implemented home safety intervention. METHODS: In partnership with a community with high injury rates for children between 1 and 5years old, a home safety bundle was developed and implemented by volunteers. The safety bundle included installing evidence based safety equipment. Monthly community emergency room attended injury rates as well as emergency room attended injuries occurring in intervention and nonintervention homes was tracked throughout the study. RESULTS: Between May 2012 and May 2014 a total of 207 homes with children 1-5years old received the home safety bundle. The baseline monthly emergency room attended injury rate for children aged 1-5years within our target community was 11.3/1000 and that within our county was 8.7/1000. Following the intervention current rates are now 10.3/1000 and 9.2/1000 respectively. Within intervention homes the injury rate decreased to 4.2/1000 while the rate in the homes not receiving the intervention experienced an increase in injury rate to 12/1000 (p<0.05). When observed vs. expected injuries were examined the intervention group demonstrated 59% fewer injuries while the nonintervention group demonstrated a 6% increase (p<0.05). CONCLUSION: Children in homes that received a volunteer-provided, free home safety bundle experienced 59% fewer injuries than would have been expected. By partnering with community leaders and organizing volunteers, proven home safety interventions were successfully provided to 207 homes during a two-year period, and a decline in community injury rates for children younger than 5years was observed compared to county wide injury rates.

Residential injuries in U.S. children and adolescents.

OBJECTIVES: Injuries are the leading cause of death and disability for U.S. children, but little research exists on injury in the home environment. The purpose of this study was to estimate the rate and severity of and trends in unintentional residential injury for U.S. children <20 years for 1993-1999. METHODS: Data on emergency department (ED) visits were obtained from the National Hospital Ambulatory Medical Care Survey (NHAMCS). Rates and 95% confidence intervals (CIs) were calculated using SUDAAN. Chi-square analysis was used to test for differences among proportions. Time trends were analyzed using linear regression. RESULTS: Residential injuries accounted for an average of 4.01 million (95% CI 3.50 million, 4.56 million) ED visits each year for U.S. children, representing 39% of unintentional injury ED visits. There were an average of 531,000 (95% CI 456,000, 606,000) visits with moderate-to-severe injuries, resulting in 73,680 (95% CI 59,715, 87,645) hospital admissions annually. The rate of residential injury visits (excluding unknown locations) was 5.6 per 100 (95% CI 4.9 per 100, 6.4 per 100). The visit rates for children <5 years of age were higher than those for children >9 years (p<0.0001). Males had a higher rate of visits than females (p=0.01). Falls were the leading mechanisms, resulting in 1.5 million ED visits per year (95% CI 1.3 million, 1.8 million). Residential injury rates decreased by 28% over time (p<0.02), from 6.3 per 100 (95% CI 3.4, 9.2) in 1993 to 4.5 per 100 (95% CI 2.3, 6.7) in 1999. CONCLUSIONS: The predominant location of injury for U.S. children is the home, accounting for 4.01 million ED visits and more than 70,000 hospitalizations each year. Efforts targeted to the home environment are needed to reduce morbidity and mortality from unintentional injury in U.S. children.

Promoting the uptake and use of evidence: an overview of the problem.

Application of evidence-based practice principles in neonatology requires that the use of proved therapies is monitored and evaluated. Although studies of neonatal center practice variation are appearing in the literature, careful, population-based assessments of the use of proved therapies are lacking. Few center comparison studies focus on proved therapies or explore the patient-independent reasons for practice variation. For a specific proved neonatal therapy, the ideal studies would carefully determine the number of eligible patients and the proportion who receive the therapy and then evaluate the characteristics of hospitals, clinicians, parents, and other decision makers among users and non-users. This information may allow for targeted interventions to disseminate evidence to both clinicians and parents, train clinicians critically to appraise the evidence, address identified barriers, and train clinicians to recognize and deal with the inevitable uncertainties associated with changing practice. The authors suggest that studies designed to evaluate the net benefit of proposed new therapies include a plan for evaluating the extent of incorporation of the therapy into practice if and when the therapy is shown to be beneficial. Studies should also rigorously evaluate alternative methods of disseminating the primary study's findings and identify the characteristics of clinicians, patients, and parents associated with practice change.

Clinical practice guideline: the diagnosis, management, and prevention of bronchiolitis.

This guideline is a revision of the clinical practice guideline, "Diagnosis and Management of Bronchiolitis," published by the American Academy of Pediatrics in 2006. The guideline applies to children from 1 through 23 months of age. Other exclusions are noted. Each key action statement indicates level of evidence, benefit-harm relationship, and level of recommendation. Key action statements are as follows:

In their own words: adolescent views on ADHD and their evolving role managing medication.

OBJECTIVE: Up to 90% of adolescents with attention deficit hyperactivity disorder (ADHD) remain functionally impaired, yet less than half continue to take medication. The objective of this study was to gain a detailed understanding of how adolescents with ADHD contribute to medication treatment decisions. METHODS: Forty-four adolescents with ADHD aged 13 to 18 years old participated in 1 of 7 focus groups. An experienced facilitator used a semi-structured focus group guide to prompt discussion which was audio-recorded and transcribed verbatim. We coded transcripts using an inductive approach. Thematic saturation was reached after the seventh focus group. RESULTS: Adolescents assumed increased responsibility for managing medication as they matured and developed insight into the functional impact of ADHD and medication on their lives. Insights were often formed by contrasting time spent on and off medication. ADHD impacted functioning in the following domains: academics, social interactions and relationships, creativity, and driving skills. Select domains were relevant for some adolescents but not others. Adolescents described different roles that they played in managing medication as well as strategies they used to exert autonomy over medication use. Side effects were common and contributed to negative feelings toward medication. Some adolescents had begun to use medication selectively. Many expressed uncertainty about future use of medication. CONCLUSIONS: Adolescents assume an increasing role in managing medication for ADHD. Well-structured and coordinated trials stopping medication and measuring outcomes relevant to adolescents, parents, teachers, doctors, and/or other stakeholders may help ensure a developmentally appropriate transition from family to self-management of ADHD.

A randomized controlled trial of home injury hazard reduction: the HOME injury study.

OBJECTIVE: To test the efficacy of installing safety devices in the homes of young children on total injury rates and on injuries deemed a priori modifiable by the installation of these devices. DESIGN: A nested, prospective, randomized controlled trial. SETTING: Indoor environment of housing units. PARTICIPANTS: Mothers and their children from birth to 3 years old participating in the Home Observation and Measures of the Environment study. Among 8878 prenatal patients, 1263 (14.2%) were eligible, 413 (32.7%) agreed to participate, and 355 were randomly assigned to the intervention (n = 181) or control (n = 174) groups. INTERVENTION: Installation of multiple passive measures (eg, stair gates, cabinet locks, and smoke detectors) to reduce exposure to injury hazards. Injury hazards were assessed at home visits by teams of trained research assistants using a validated survey. MAIN OUTCOME MEASURE: Modifiable and medically attended injury (ie, telephone calls, office visits, and emergency visits for injury). RESULTS: The mean age of children at intervention was 6.3 months. Injury hazards were reduced in the intervention homes but not in the control homes at 1 and 2 years (P < .004). There was no difference in the rate for all medically attended injuries in intervention children compared with controls: 14.3 injuries (95% confidence interval [CI], 9.7-21.1 injuries) vs 20.8 injuries (95% CI, 14.4-29.9 injuries) per 100 child-years (P = .17); but there was a significant reduction in the rate of modifiable medically attended injuries in intervention children compared with controls: 2.3 injuries (95% CI, 1.0-5.5 injuries) vs 7.7 injuries (95% CI, 4.2-14.2 injuries) per 100 child-years (P = .03). CONCLUSION: An intervention to reduce exposure to hazards in homes led to a 70% reduction in the rate of modifiable medically attended injury. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT00129324.

Parental angst making and revisiting decisions about treatment of attention-deficit/hyperactivity disorder.

BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is one of the most common neurobehavioral conditions of childhood and adolescence. Despite availability of effective treatment options, initiation of treatment is variable and persistence with therapeutic regimens is poor. OBJECTIVE: We sought to better understand how parents make decisions about treatment for their child or adolescent with ADHD. METHODS: We conducted a qualitative study among parents of children and adolescents; 52 parents participated in 1 of 12 focus groups. Parents answered questions about decision-making, information sharing, and sources of conflict and uncertainty. Sessions were audiotaped and transcribed verbatim. Themes were coded independently by 4 of the investigators, who then agreed on common themes. RESULTS: Parents in our study made decisions about treatment for their child with ADHD in the midst of experiencing a variety of emotions as they witnessed child functional impairments at home and at school. In addition, parents felt stress as a result of their daily efforts to manage their child's struggles. Multiple factors influenced the decision to initiate medication. Subsequently, revisiting the decision to give their child medicine for ADHD was common. Many parents contrasted time on and off medicine to help inform management decisions. Trials stopping medication were almost always parent- or child-initiated. CONCLUSIONS: Decisions about medication use for children and adolescents with ADHD are made and frequently revisited by their parents. Choices are often made under stressful conditions and influenced by a variety of factors. Striking a balance between benefits and concerns is an ongoing process that is often informed by contrasting time on and off medication. Development of strategies to support families across the continuum of decisions faced while managing ADHD is warranted.

Deaths from residential injuries in US children and adolescents, 1985-1997.

OBJECTIVE: The majority of deaths from unintentional injuries in children occur in the home environment, but there has not been a comprehensive analysis of residential deaths in the United States since 1985. The objective of this study was to determine the incidence and trends of deaths from injuries that occurred in the residential setting. METHODS: Injury-related death rates of all deaths among US children and adolescents who were younger than 20 years from 1985 to 1997 were calculated using National Vital Statistics System Mortality Data from 1985 to 1997 by age group, gender, region, and race. Poisson regression or negative binomial regression was used to test for trends over time in mortality rates. RESULTS: From 1985 to 1997, an average of 2822 (55%) of 5103 annual unintentional deaths in US children with a known location of injury took place in the home environment. The annual number and incidence of fatal residential injuries decreased by >22%, from 2973 (4.2 per 100000) in 1985 to 2310 (3.0 per 100000) in 1997. The death rate as a result of residential injury was highest in children who were younger than 1 year (12.6 per 100000) and 1 to 4 years (7.9 per 100000) compared with older children, boys compared with girls (4.9 vs 2.8 per 100000), and black children compared with white children (7.0 vs 3.3 per 100000). The highest death rates were attributable to fires (1.5 per 100000), submersion or suffocation (1.3 per 100000), poisoning (0.2 per 100000), and falls (0.1 per 100000). CONCLUSIONS: Despite a 22% decline since 1985, residential injuries remain a leading cause of death in US children and adolescents. Black children were 2 times more likely to die from residential injuries than white children.