Second-Trimester Ultrasound Receipt Mediates the Relationship Between Public Insurance and Prenatal Diagnosis of a Congenital Heart Defect.

OBJECTIVE: To delineate the mechanism behind insurance-related disparities in the prenatal diagnosis of a congenital heart defect (CHD). METHODS: This was a retrospective analysis of electronic health records of pregnant individuals whose infants received CHD surgery between 2019 and 2020 in the third-largest United States metropolitan area. The outcome was whether a prenatal diagnosis was received. The exposure was the pregnant individual's insurance status. The mediator was second-trimester ultrasound receipt. Control variables included sociodemographic and clinical characteristics of the pregnant individual and infant. The relationships between exposure, mediator, and outcome were quantified using mediation analysis with multivariable fixed-effects regression. RESULTS: In total, 496 pregnant individuals met inclusion criteria; 215 (43.3%) were publicly insured and 305 (61.5%) had prenatal diagnosis. In bivariate regressions, public insurance was associated with a 12.6% lower probability (CI 3%-21%) of prenatal diagnosis. In multivariable models, public insurance was associated with 13.2% lower probability (CI 2%-25%) of second-trimester ultrasound receipt but was no longer associated with prenatal diagnosis after adjusting for second-trimester ultrasound receipt, suggesting a possible mediation effect. Mediation analysis confirmed that second-trimester ultrasound receipt mediated 39% of the relationship between public insurance and prenatal diagnosis. CONCLUSION: An appreciable portion of insurance-related differences in prenatal CHD diagnosis is due to the lower frequency of second-trimester ultrasound receipt among those with public insurance.

Patient-reported barriers to prenatal diagnosis of congenital heart defects: A mixed-methods study.

OBJECTIVE: To ascertain patient-reported, modifiable barriers to prenatal diagnosis of congenital heart defects (CHDs). METHODS: This was a mixed-methods study among caretakers of infants who received congenital heart surgery from 2019 to 2020 in the Chicagoland area. Quantitative variables measuring sociodemographic characteristics and prenatal care utilization, and qualitative data pertaining to patient-reported barriers to prenatal diagnosis were collected from electronic health records and semi-structured phone surveys. Thematic analysis was performed using a convergent parallel approach. RESULTS: In total, 160 caretakers completed the survey, 438 were eligible for survey, and 49 (31%) received prenatal care during the COVID-19 pandemic. When comparing respondents and non-respondents, there was a lower prevalence of maternal Hispanic ethnicity and a higher prevalence of non-English/Spanish-speaking households. Of all respondents, 34% reported an undetected CHD on ultrasound or echocardiogram, while 79% reported at least one barrier to prenatal diagnosis related to social determinants of health. Among those social barriers, the most common were difficulty with appointment scheduling (n = 12, 9.5%), far distance to care/lack of access to transportation (n = 12, 9.5%) and difficulty getting time off work to attend appointments (n = 6, 4.8%). The latter two barriers were correlated. CONCLUSION: While technical improvements in the detection of CHDs remain an important area of research, it is equally critical to produce evidence for interventions that mitigate barriers to prenatal diagnosis due to social determinants of health.

Miniaturized wireless, skin-integrated sensor networks for quantifying full-body movement behaviors and vital signs in infants.

Early identification of atypical infant movement behaviors consistent with underlying neuromotor pathologies can expedite timely enrollment in therapeutic interventions that exploit inherent neuroplasticity to promote recovery. Traditional neuromotor assessments rely on qualitative evaluations performed by specially trained personnel, mostly available in tertiary medical centers or specialized facilities. Such approaches are high in cost, require geographic proximity to advanced healthcare resources, and yield mostly qualitative insight. This paper introduces a simple, low-cost alternative in the form of a technology customized for quantitatively capturing continuous, full-body kinematics of infants during free living conditions at home or in clinical settings while simultaneously recording essential vital signs data. The system consists of a wireless network of small, flexible inertial sensors placed at strategic locations across the body and operated in a wide-bandwidth and time-synchronized fashion. The data serve as the basis for reconstructing three-dimensional motions in avatar form without the need for video recordings and associated privacy concerns, for remote visual assessments by experts. These quantitative measurements can also be presented in graphical format and analyzed with machine-learning techniques, with potential to automate and systematize traditional motor assessments. Clinical implementations with infants at low and at elevated risks for atypical neuromotor development illustrates application of this system in quantitative and semiquantitative assessments of patterns of gross motor skills, along with body temperature, heart rate, and respiratory rate, from long-term and follow-up measurements over a 3-mo period following birth. The engineering aspects are compatible for scaled deployment, with the potential to improve health outcomes for children worldwide via early, pragmatic detection methods.

Perspectives of Challenges in Counseling for Congenital Heart Defects.

Prior work regarding counseling patients about congenital heart defects (CHD) has focused on their perceptions about accurate communication of cardiac anatomy, and the emotional support received from the provider. The objectives of this study were to identify the additional CHD counseling-specific challenges and areas for future intervention, using a practical communication framework. This is a secondary analysis of qualitative data provided by caretakers of infants who received congenital heart surgery from 2019 to 2020 in the Chicagoland area. While the survey in the primary study pertained to barriers in obtaining prenatal diagnosis, respondents with both prenatal and postnatal diagnosis reported challenges to effective counseling. Qualitative data measuring counseling challenges were collected from semi-structured phone interviews. Thematic analysis was performed using an inductive approach. Themes were organized into five domains using SPIKES (Setting, Perception, Invitation, Knowledge, Empathy, and Summarize/Strategy), a previously validated framework to help clinicians effectively break bad news. Among 160 survey respondents, 35 (21.9%) reported a challenge during CHD counseling that they received. In total, 12 challenges were identified and spanned all six SPIKES domains. The three most common challenges were as follows: perception of repeated imaging studies for accurate diagnosis or management (n = 19, Knowledge), the lack of cardiologist presence at the time of initial CHD detection (n = 8, Setting), and insufficient information provided about the CHD diagnosis (n = 7, Knowledge). Patients perceive counseling as a key component of prenatal diagnosis of CHD and identify the challenges that exist at all stages of the counseling process. These findings suggest that effective counseling extends beyond conveying information about anatomy and prognosis.

Barriers to enrollment in a pediatric critical care biorepository.

BACKGROUND: Individuals of minority race/ethnicity have lower rates of participation in genomic research. This study evaluated sociodemographic characteristics associated with decisions to enroll in a pediatric critical care biorepository. METHODS: Parents of children admitted to the PICU between November 2014 and May 2017 were offered to enroll their child in a biorepository using a single-page opt-in consent. Missed enrollment was assessed by failure to complete the form or declining consent on the form. We conducted a retrospective chart review for sociodemographic and clinical information. Bivariate and multivariable regression analyses were performed. RESULTS: In 4055 encounters, representing 2910 patients with complete data, 1480 (50%) completed the consent form and 1223 (83%) enrolled. We found higher odds of incomplete consent for non-English-speaking parents (OR = 2.1, p < 0.0001) and parents of children of all races except non-Hispanic white (OR = 1.27-1.99, p < 0.0001). We found higher odds of declined consent in patients with Medicaid (OR = 1.67, p = 0.003) and parents of children of all races except non-Hispanic white (OR = 1.32-2.9, p < 0.0001). CONCLUSION: Inability to enroll patients in a critical care biorepository may be associated with several sociodemographic factors at various points in recruitment/enrollment. IMPACT: Individuals of minority race/ethnicity are less likely to enroll in genomic research and in critical care research. This study evaluated sociodemographic characteristics associated with decisions to enroll a child in a pediatric critical care biorepository. Sociodemographic factors including race/ethnicity, primary language, and insurance status and patient clinical characteristics are associated with differential enrollment into a pediatric critical care biorepository. More research is needed to understand how study team-participant interactions may play a role in differential enrollment. Barriers to enrollment occur both at the time of approaching and consenting for enrollment.

Health provider perspectives of electronic medication monitoring in outpatient asthma care: a qualitative investigation using the consolidated framework for implementation research.

OBJECTIVE: Little is known about the implementation challenges health providers might face with the use of digital health in outpatient asthma care. To qualitatively explore the experience of health providers with electronic medication monitoring (EMM) using an implementation science framework. METHODS: Using the Consolidated Framework of Implementation Research (CFIR), we conducted interviews (n = 10) exploring health providers' experience with EMM with asthma patients from 5 primary care or specialty clinics. The EMM tracked albuterol and inhaled corticosteroid (ICS) use, and health providers called parents whenever ICS adherence waned, or albuterol use increased. Interviews were audio-recorded, transcribed, and deductively analyzed using directed content analysis. RESULTS: Health providers reported the intervention's primary advantage, compared with current asthma care, was the ability to monitor medication use at-home. Most felt the intervention improved care delivery. Nurses and medical assistants described a process of phone calls and checking alerts, that had varying levels of administrative burden and complexity. Health providers felt that sustained implementation of the intervention model would require additional employees to handle the administrative and clinical workload. Half of the interviewed providers were unsure if patient needs were met by the intervention, while some cited technology syncing issues, others liked the enhanced interactions for asthma education. CONCLUSION: Health providers reported positive experiences supporting parents and children with asthma using EMM but also highlighted intervention components that needed improvement or refinement to yield successful implementation in outpatient pediatric clinics. Recommendations for enhancing the intervention for a scaled-up implementation were discussed.

Measuring PROMIS® Social Relationships in Early Childhood.

OBJECTIVE: Apply the Patient-Reported Outcome Measurement Information System (PROMIS®) mixed-methods approach to develop and validate new parent-report measures of young children's (1-5 years) family and peer relationships that conceptually align to those for 5-17 year olds. METHODS: Expert input, parent interviews, and reviews of theoretical and empirical literature were used to develop draft item pools, which were administered in two waves of panel surveys (N = 1,750). Psychometric evaluation was conducted using item response theory-based methods. Scores were normed to the general U.S. population. Initial validation analyses were conducted using Pearson's correlations and analysis of variance to examine known-group differences between children with various health conditions. RESULTS: Experts and parents confirmed the content validity of existing PROMIS family and peer relationships domain frameworks and suggested adding child-caregiver interactions and empathic behaviors, respectively. Bi-factor model analysis supported sufficient unidimensionality where family and peer relationships were modeled as distinct subdomains of a broader concept, Social Relationships. The new measure was robust in discriminating young children with poor social relationships. Correlational and known-group analyses revealed positive associations with general health and well-being and negative associations with emotional and physical distress. CONCLUSIONS: The PROMIS Early Childhood Parent-Report Social Relationships item bank enables clinicians and researchers a brief, efficient, and precise way to evaluate early relational health. Subdomain short forms also offer the ability to assess specific components (i.e., child-caregiver, family, and peer) for more targeted interventions and analyses.

Someone to talk to: the association of mentorship and cyberbullying with suicidality among US high school students.

OBJECTIVE: Suicide is the second-leading cause of death in youth. We tested whether having a mentoring relationship associated with lower risks for suicidality, particularly among youth at higher risk due to cyberbullying. METHODS: This study pooled the 2017 Youth Risk Behavior Survey (YRBS) data from five jurisdictions that asked students if there was at least one teacher or other adult in their school that they could talk with, if they have a problem (mentorship). Students self-reported cyberbullying exposure and suicidality in the past 12 months. Odds of suicidal ideation, planning, and attempts were estimated using multivariable weighted logistic regression in overall and sex-stratified stepwise models. Interactions between mentorship and cyberbullying were also tested. RESULTS: Of the 25,527 student respondents, 87% reported having a mentoring relationship. Mentoring relationships were associated with lower odds of suicidal ideation (aOR, 0.44; 95% CI 0.33-0.57), planning (aOR, 0.59; 95% CI 0.41-0.85), and suicide attempts (aOR, 0.42; 95% CI 0.31-0.56). Stratified analyses showed a significant interaction between cyberbullying and mentorship with suicidal attempts among males, and a near-significant association between cyberbullying and mentorship with suicidal thoughts among females. Compared to male students with no cyberbullying and no mentorship, odds of attempting suicide were lower for males with no cyberbullying and mentorship (aOR, 0.55, 95% CI 0.32-0.92), higher for males with cyberbullying and no mentorship (aOR, 7.78, 95% CI 3.47-17.47), but not significantly different for males with cyberbullying and mentoring relationships (aOR, 1.49, 95% CI 0.86-2.48). Similarly, compared with females with no cyberbullying and no mentorship, odds of having suicidal thoughts were lower for females with no cyberbullying and mentorship (aOR, 0.40, 95% CI 0.28-0.57), and higher for females with cyberbullying and no mentorship (aOR, 2.54, 95% CI 1.59-4.07). CONCLUSION: School-based mentoring may mitigate risk of suicidality among adolescents and limit the toxic effects of cyberbullying.

Impact of stigmatizing language describing opioid-exposed mother infant dyads: A randomized case vignette study.

Background: Existing literature suggests that using stigmatizing language may promote negative attitudes and result in more punitive views toward individuals with addiction. It is unclear how the commonly used colloquial terms to describe opioid-exposed mother infant dyads impacts public opinion of pregnant women with opioid use disorder (OUD). We sought to examine the extent to which language such as "opioid addict" and "born addicted" influences the perception of pregnant women with OUD. Methods: We conducted a randomized case-based vignette study using a population-weighted sample of parents living in Tennessee, varying in the language used to describe an opioid-exposed mother infant dyad. Participant demographics, views on opioid prescribing, and opinions on criminal justice and child welfare responses following delivery were obtained. Ordinal logistic regression was used to examine the association between vignette type and punitive responses. Results: Eleven hundred participants completed the survey. Overall, 30.6% felt the mother should be arrested and 68.6% felt the mother should lose custody of her infant. There was insufficient evidence to suggest a difference in punitive response selection based on the vignette language (p = 0.27). In the adjusted model, the odds of answering a more punitive response among parents who received non-stigmatizing language was 0.8 (95% CI 0.59-1.08) compared to parents who received stigmatizing language in the vignette. Conclusions: Many parents hold punitive views toward mothers receiving OUD treatment that was not altered by using less value-laden language. Broader stigma-reduction interventions may be more effective.

Nationwide Circumcision Trends: 2003 to 2016.

PURPOSE: Among some populations access to neonatal circumcision has become increasingly limited despite evidence of its benefits. This study examines national neonatal circumcision trends before and after the 2012 American Academy of Pediatrics recommendation for neonatal circumcision reimbursement. MATERIALS AND METHODS: A retrospective cohort study of boys aged 28 days or less was conducted using data from the Kids' Inpatient Database (2003 to 2016). Boys who underwent neonatal circumcision prior to discharge were compared to boys who did not. Boys with coagulopathies, penile anomalies or a history of prematurity were excluded. RESULTS: An estimated 8,038,289 boys comprised the final cohort. Boys were primarily White (53.7%), privately insured (49.1%) and cared for at large (60.8%) teaching (49.4%) hospitals in metropolitan areas (84.1%). While 55.0% underwent circumcision prior to discharge, neonatal circumcision rates decreased significantly over time (p <0.0001). Black (68.0%) or White (66.0%) boys, boys in the highest income quartile (60.7%) and Midwestern boys (75.0%) were most likely to be circumcised. Neonatal circumcision was significantly more common among privately (64.9%) than publicly (44.6%) insured boys after controlling for demographics, region, hospital characteristics and year (p <0.0001). The odds of circumcision over time were not significantly different in the years before vs after 2012 (p=0.28). CONCLUSIONS: Among approximately 8 million boys sampled over a 13-year period 55.0% underwent neonatal circumcision. The rate of neonatal circumcision varied widely by region, race and socioeconomic status. The finding that boys with public insurance have lower circumcision rates in all years may be related to lack of circumcision access for boys with public insurance.

A Retrospective Study of Children Transferred from General Emergency Departments to a Pediatric Emergency Department: Which Transfers Are Potentially Amenable to Telemedicine?

OBJECTIVE: To characterize children who experienced interfacility emergency department (ED) transfers with discharge home, and identify care potentially amenable to telemedicine in lieu of transfer. STUDY DESIGN: Retrospective cohort study (July 2016 to June 2017) of patients transferred from general EDs to an academic pediatric ED and discharged home. The primary outcome was care potentially amenable to telemedicine defined as pediatric emergency medicine (PEM) provider assessment without other in-person subspecialty evaluation, diagnostic evaluation available in a general ED (electrocardiogram, point-of-care, or urine tests), and/or referrals and medications available in a general ED. Analysis included descriptive and χ2 statistics. RESULTS: Of the 1733 patients transferred, 529 (31%) were discharged home and 22% of those discharged home had care potentially amenable to telemedicine. Patients amenable to telemedicine were more likely to be <2 years old (32% vs 17%; P = .002) and to have neurologic (29% vs 17%; P = .005), respiratory (16% vs 4%; P < .001), or urinary (5% vs 1%; P = .004) diagnoses than those whose care was not. Eight in 10 patients received their entire diagnostic evaluation before transfer and one-half received only a PEM provider assessment. An additional 281 cases were evaluated by a subspecialist in person, received routine imaging, or routine interventions. CONCLUSIONS: Children receiving care potentially amenable to telemedicine in lieu of transfer often received their entire diagnostic evaluation before transfer; PEM provider assessment was the mainstay of care after transfer. These findings have implications for informing telemedicine to improve access to PEM expertise and potentially decrease some interfacility transfers.

Childhood Risk Factors and Adulthood Cardiovascular Disease: A Systematic Review.

OBJECTIVE: To conduct a comprehensive review of the literature on childhood risk factors and their associations with adulthood subclinical and clinical cardiovascular disease (CVD). STUDY DESIGN: A systematic search was performed using the MEDLINE, EMBASE, PsycINFO, CINAHL, and Web of Science databases to identify English-language articles published through June 2018. Articles were included if they were longitudinal studies in community-based populations, the primary exposure occurred during childhood, and the primary outcome was either a measure of subclinical CVD or a clinical CVD event occurring in adulthood. Two independent reviewers screened determined whether eligibility criteria were met. RESULTS: There were 210 articles that met the predefined criteria. The greatest number of publications examined associations of clinical risk factors, including childhood adiposity, blood pressure, and cholesterol, with the development of adult CVD. Few studies examined childhood lifestyle factors including diet quality, physical activity, and tobacco exposure. Domains of risk beyond "traditional" cardiovascular risk factors, such as childhood psychosocial adversity, seemed to have strong published associations with the development of CVD. CONCLUSIONS: Although the evidence was fairly consistent in direction and magnitude for exposures such as childhood adiposity, hypertension, and hyperlipidemia, significant gaps remain in the understanding of how childhood health and behaviors translate to the risk of adulthood CVD, particularly in lesser studied exposures like glycemic indicators, physical activity, diet quality, very early life course exposure, and population subgroups.

Parental COVID-19 vaccine hesitancy for children: vulnerability in an urban hotspot.

OBJECTIVE: To compare hesitancy toward a future COVID-19 vaccine for children of various sociodemographic groups in a major metropolitan area, and to understand how parents obtain information about COVID-19. METHODS: Cross-sectional online survey of parents with children < 18 years old in Chicago and Cook County, Illinois, in June 2020. We used logistic regression to determine the odds of parental COVID-19 vaccine hesitancy (VH) for racial/ethnic and socioeconomic groups, controlling for sociodemographic factors and the sources where parents obtain information regarding COVID-19. RESULTS: Surveys were received from 1702 parents and 1425 were included in analyses. Overall, 33% of parents reported VH for their child. COVID-19 VH was higher among non-Hispanic Black parents compared with non-Hispanic White parents (Odds Ratio (OR) 2.65, 95% Confidence Interval (CI): (1.99-3.53), parents of publicly insured children compared with privately insured (OR 1.93, (1.53-2.42)) and among lower income groups. Parents receive information about COVID-19 from a variety of sources, and those who report using family, internet and health care providers as information sources (compared to those who don't use each respective source) had lower odds of COVID-19 VH for their children. CONCLUSIONS: The highest rates of hesitancy toward a future COVID-19 vaccine were found in demographic groups that have been the most severely affected by the pandemic. These groups may require targeted outreach efforts from trusted sources of information in order to promote equitable uptake of a future COVID-19 vaccine.

Implementation of the Addendum Guidelines for Peanut Allergy Prevention by US allergists, a survey conducted by the NIAID, in collaboration with the AAAAI.

BACKGROUND: In 2017, the Addendum Guidelines for the Prevention of Peanut Allergy were published with recommendations on early introduction of peanut-containing foods based on infants' clinical history. OBJECTIVE: We sought to conduct a nationwide US survey to assess Guidelines implementation among allergists and immunologists who manage infants for food allergy. METHODS: Survey invitations were delivered to 3281 nonretired, US members of the American Academy of Asthma, Allergy & Immunology, board certified in allergy and immunology. The survey assessed awareness and implementation of the Guidelines and barriers to implementation. Descriptive statistics were generated. RESULTS: Twenty-nine percent (946 of 3281) of surveyed allergists/immunologists responded, and 87.1% (825 of 946) of responders met eligibility criteria. Among eligible responders, 97.1% were aware of the Guidelines. Of these, 64.5% reported full implementation of the Guidelines as published, 34.4% reported partial implementation, and 1.1% reported using none of the Guidelines. Barriers to Guidelines use included parental (47.6%) and self (21.8%) concerns about allergic reactions, lack of referrals (33.6%), parents uninterested in early feeding (28.2%), and lack of clinic time (20.9%). The 2 most common deviations from the Guidelines were considering additional factors not specified in the Guidelines such as family history (50.2%) and conducting skin prick testing in non-high-risk children (43.9%). Of respondents using the Guidelines, 45.7% indicated they needed more education or training. CONCLUSIONS: Essentially all allergists/immunologists who responded to the survey reported full or partial Guidelines implementation. Parental concerns and lack of referrals are major identifiable barriers. Improved Guidelines messaging to parents and referring physicians is warranted.

Adverse Experiences and Special Health Care Needs Among Children.

OBJECTIVES: To evaluate the association of exposure to adverse childhood experiences (ACEs) and being a child with special health care needs (CSHCNs), and risks of specific ACE exposures with CSHCN status. METHODS: An analysis of 91,219 children from the 2011-2012 National Survey of Children's Health. Multivariable logistic regression was used to compare the odds of CSHCN status based on total ACE exposure and on distinct types of ACE exposure. RESULTS: Overall, 20% of children met CSHCN criteria. Although 57% of children had no ACEs, 23% had experienced 1, 13% had experienced 2-3 ACEs, and < 1% had experienced 4 or more ACEs. The odds of CSHCN status increased by 38% with 1 ACE [adjusted odds ratio (aOR) 1.38, 95% confidence interval (95% CI) (1.25-1.52)], but with ≥ 4 ACEs, the odds of CSHCN status increased nearly threefold [aOR 2.95 (95% CI 2.54-3.45)]. Presence of mental illness in the family [aOR 2.12 (95% CI 1.89-2.38)], domestic violence [aOR 1.69 (95% CI 1.48-1.93)], and neighborhood violence [aOR 1.89 (95% CI 1.67-2.14)] were the ACEs most strongly associated with CSHCN status. CONCLUSIONS FOR PRACTICE: Each additional ACE exposure increased the likelihood of CSHCN status, and family and community-level ACEs were associated with increased risk for CSHCN status. The findings suggest that systems of care for CSHCN, including public health, health care, education, and social welfare, should incorporate supports for addressing ACEs among this population and a trauma-informed approach.

Does Primary Care Provider Supply Influence Medicaid Acceptability?

BACKGROUND: Following the Affordable Care Act's Medicaid expansions, access to care improved through elevated coverage rates among the low-income population. In Michigan, a major factor contributing to improved access among low-income patients was increased Medicaid acceptance in primary care settings. OBJECTIVES: Prior evidence shows substantial geographic variation preacceptance and postacceptance of Medicaid. In this study, we determine whether physician's willingness to accept new Medicaid patients is moderated by the availability of other providers in close proximity. METHODS: The study uses Michigan simulated patient (ie, "secret shopper") data collected during 2014 and 2015, and applies a difference-in-differences styled event-study regression approach comparing trends in Medicaid acceptability and appointment scheduling between areas in Michigan with higher densities of primary care providers against those with lower densities of providers that could arguably be classified a health professional shortage areas. RESULTS: Through one year after Michigan's Medicaid expansion, practices in low-supply areas appeared no more likely (P>0.10) to turn away a newly insured Medicaid patient than a practice in a supply-rich area. The wait times for patients in a low-supply area were about a day longer (P<0.05) than for patients in supply-rich areas through 4 months after the expansion, though this difference dissipated through 8 and 12 months after the expansion. CONCLUSIONS: These results indicate that newly insured Medicaid patients are gaining access to care in settings with limited health care supply.

Characterization of the 2-methylvinoxy radical + O2 reaction: A focal point analysis and composite multireference study.

Vinoxy radicals are involved in numerous atmospheric and combustion mechanisms. High-level theoretical methods have recently shed new light on the reaction of the unsubstituted vinoxy radical with O2. The reactions of 1-methylvinoxy radical and 2-methylvinoxy radical with molecular oxygen have experimental high pressure limiting rate constants, k∞, 5-7 times higher than that of the vinoxy plus O2 reaction. In this work, high-level ab initio quantum chemical computations are applied to the 2-methylvinoxy radical plus O2 system, namely, the formation and isomerization of the 1-oxo-2-propylperoxy radical, the immediate product of O2 addition to the 2-methylvinoxy radical. Multireference methods were applied to the entrance channel. No barrier to O2 addition could be located, and more sophisticated treatment of dynamic electron correlation shows that the principal difference between O2 addition to the vinoxy and 2-methylvinoxy radicals is a larger steric factor for 2-methylvinoxy + O2. This is attributed to the favorable interaction between the incoming O2 molecule and the methyl group of the 2-methylvinoxy radical. Via the focal point approach, energetics for this reaction were determined, in most cases, to chemical accuracy. The coupled-cluster singles, doubles, and perturbative triples [CCSD(T)] correlation energy and Hartree-Fock energies were independently extrapolated to the complete basis set limit. A correction for the effect of higher excitations was computed at the CCSDT(Q)/6-31G level. Corrections for the frozen-core approximation, the Born-Oppenheimer approximation, the nonrelativistic approximation, and the zero-point vibrational energy were included. From the 1-oxo-2-propylperoxy radical, dissociation to reactants is competitive with the lowest energy isomerization pathway. The lowest energy isomerization pathway ultimately forms acetaldehyde, CO, and ·OH as the final products.

Future Directions for Early Childhood Prevention of Mental Disorders: A Road Map to Mental Health, Earlier.

Mental disorders are the predominant chronic diseases of youth, with substantial life span morbidity and mortality. A wealth of evidence demonstrates that the neurodevelopmental roots of common mental health problems are present in early childhood. Unfortunately, this has not been translated to systematic strategies for improving population-level mental health at this most malleable neurodevelopmental period. We lay out a translational Mental Health, Earlier road map as a key future direction for prevention of mental disorder. This paradigm shift aims to reduce population attributable risk of mental disorder emanating from early life, by preventing, attenuating, or delaying onset/course of chronic psychopathology via the promotion of self-regulation in early childhood within large-scale health care delivery systems. The Earlier Pillar rests on a "science of when to worry" that (a) optimizes clinical assessment methods for characterizing probabilistic clinical risk beginning in infancy via deliberate incorporation of neurodevelopmental heterogeneity, and (b) universal primary-care-based screening targeting patterns of dysregulated irritability as a robust transdiagnostic marker of vulnerability to life span mental health problems. The core of the Healthier Pillar is provision of low-intensity selective intervention promoting self-regulation for young children with developmentally atypical patterns of irritability within an implementation science framework in pediatric primary care to ensure highest population impact and sustainability. These Mental Health, Earlier strategies hold much promise for transforming clinical outlooks and ensuring young children's mental health and well-being in a manner that reverberates throughout the life span.

Neighborhood Gun Violence and Birth Outcomes in Chicago.

OBJECTIVES: To examine the association between gun violence and birth outcomes among women in Chicago. METHODS: Using a 5-year set of birth files (2011-2015) merged with census and police data, birth outcomes including low birth weight (LBW, BW < 2500 g), preterm birth (PTB, < 37 weeks gestation), and small-for-gestational-age (SGA, BW < 10th percentile) were examined among non-Hispanic (NH) white, NH black, and Hispanic women in Chicago. Gun violence rates were categorized into tertiles. Multilevel, multiple logistic regression examined the effects of gun violence and race/ethnicity on birth outcomes. RESULTS: Of 175,065 births, 10.6% of LBW, 10.6% of PTB, and 9.1% of SGA occurred in high violence tertile. Using white women in low violence tertile as reference, the OR for LBW among black women ranged 1.9-2.1 across all tertiles, and 0.8-1.2 among Hispanic women. OR for PTB for black women were 1.6-1.7 and 1.0-1.2 for Hispanic women, and OR for SGA for black women were 1.6-1.7 and for Hispanic women 0.9-1.0. CONCLUSIONS FOR PRACTICE: In Chicago, race/ethnicity was associated with birth outcomes, regardless of the level of exposure to gun violence, in 2011-2015. The differences in racial/ethnic composition across the violence exposure levels suggest that, rather than gun violence alone, residential segregation and the geographic inequities likely contribute to disparate birth outcomes.