February 26, 2021
In This Issue

Research Spotlight:
Neighborhood Characteristics Linked to Adolescent Sleep Health

CPCE In the News:
COVID-19 News

Upcoming Events

Recent Publications
Neighborhood Characteristics Linked to Adolescent Sleep Health
A recent study conducted by CHOP and Penn researchers looked at the impact of a variety of neighborhood environmental factors on adolescent sleep. They found that higher neighborhood noise level was associated with insufficient sleep, and that higher neighborhood tree canopy cover was associated with earlier sleep timing, suggesting that these factors may be appropriate targets for interventions to improve sleep.

The team included CPCE Core Faculty members Stephanie Mayne, PhD, MHS, Ariel Williamson, PhD, and Alexander Fiks, MD, MSCE. Led by Jonathan Mitchell, PhD, assistant professor of pediatrics at CHOP and Penn, the research team enrolled 118 adolescents in eighth grade and assessed sleep patterns over a 14-day period, and then reassessed sleep patterns one year later when the participants were in ninth grade. Prior investigations of neighborhood effects on sleep had relied on cross-sectional studies, self-reported sleep outcomes, and adult populations. In contrast, the CHOP study objectively measured sleep patterns via actigraphy, with watch-like wearable devices.

Sleep outcomes were: duration in hours per night, onset and offset times. Sufficient sleep was defined as ≥8 hours per night. The team used participants’ home addresses and various national databases to estimate built environmental characteristics. In addition to sound levels and tree canopy cover, they assessed street and intersection density, population and housing density. Density-based measures were not associated with sleep outcomes overall; however, higher street and intersection densities were associated with later sleep offset in ninth grade. Prior analysis of adolescent sleep patterns found that in general sleep problems worsen during the transition from middle to high school.

“For adolescents, the harms of insufficient sleep are wide-ranging and include impaired cognition and engagement in antisocial behavior,” Dr. Mayne said in a NIH press release. “This makes identifying strategies to prevent and treat the problem critical. Our findings suggest that neighborhood noise and green space may be important targets for interventions.” The work was funded in part by the National Heart, Lung, and Blood Institute (NHLBI).

This work has also been covered by the CHOP Research Institute’s Cornerstone blog and HealthDay.
COVID-19 News

Our experts continue to provide guidance on safely reopening schools, as Susan Coffin, MD, MPH discussed with WHYY's Radio Times. In addition, School District of Philadelphia teachers started getting COVID-19 vaccinations this week, in a partnership between CHOP, the district, and the Philadelphia Department of Public Health. "Our goal is to complete the two-dose vaccination series for all student-facing personnel in the city within 6 weeks," said Ron Keren, MD, MPH.
 
Stay up to date at our COVID-19 News page.
Upcoming Events

Grab A Book & Take A Break: Professor Dorothy Roberts on Fatal Invention: How Science, Politics, and Big Business Re-create Race in the 21st Century
Date: March 1, 2021
Time: 12:00 - 1:00 pm
Join Penn Law for a conversation moderated by Amanda Runyon, Associate Dean and Director of Biddle Law Library, with Professor Dorothy Roberts as she explores the role of scientific theory, medicine, law, sociology, politics, and civil rights. Register here.

Drexel University Dornsife School of Public Health 2021 Population Health Symposium
Dates: April 7-8, 2021
This year’s inaugural symposium will bring together researchers, health practitioners, students, and the public at large to learn about the intersection of racism and health and discuss how we can collectively propose sustainable solutions towards health equity. Learn more and register here.
 
13th Annual University of Pennsylvania Conference on Statistical Issues in Clinical Trials
Date: April 12, 2021
Time: 8:30 am - 4:30 pm
Continuing its longstanding collaboration with the Department of Biostatistics, Epidemiology and Informatics at the University of Pennsylvania, the ASA, NISS and SCT is delighted to announce the 13th Annual Conference on Statistical Issues in Clinical Trials: Cluster Randomized Trials (CRTs) - Challenges and Opportunities. Learn more and register here.

*For CPCE/PolicyLab Virtual Seminar Series: If you would like to participate in any of the virtual events and did not receive an Outlook invitation, please contact crosss2@email.chop.edu
Recent Publications

Infectious Diseases Society of America (IDSA) and five additional endorsing societies acknowledge the Centers for Medicare & Medicaid Services' Severe Sepsis and Septic Shock Early Management Bundle (SEP-1) for appropriately establishing sepsis as a national priority. They are, however, concerned about its potential to drive antibiotic overuse. In this position paper, Kathleen Chiotos, MD, MSCE and co-authors outline several recommendations aimed at reducing the risk of unintended consequences of SEP-1 while maintaining focus on its evidence-based elements. IDSA's core recommendation is to limit SEP-1 to septic shock, for which the evidence supporting the benefit of immediate antibiotics is greatest.

Several early-life environmental factors have been associated with altered risk for the development and/or severity of individual allergic conditions. These include exposures implicated in the modulation of the microbiome, such as infant delivery mode, diet, and exposure to antibiotics and antacids. A team including Robert Grundmeier, MD used electronic medical records for a birth cohort of 158,510 children to track development of atopic dermatitis (AD), IgE-mediated food allergy (IgE-FA), asthma, and allergic rhinitis (AR) in individual children over time. They found that vaginal delivery and exclusive breastmilk feeding are associated with reduced cumulative allergic burden, while antibiotic exposure and antacid exposure are associated with increased cumulative allergic burden during childhood.

There are limited data concerning trends in resource use and mortality among admitted children with congenital heart disease. This study by Joseph W. Rossano, MD, MS, Andrew C. Glatz, MD, MSCE and their team examined inpatient admissions in order to assess the frequency, medical complexity, and outcomes of CHD hospital admissions. Children admitted with CHD are 10 times more likely to die than those without CHD and have higher charges. Although the rate of mortality in CHD admissions decreased, children with CHD accounted for an increasing proportion of all pediatric inpatient deaths. Effective resource allocation is critical to optimize outcomes in these high-risk patients.

Michael O’Byrne, MD, MSCE and Andrew C. Glatz, MD, MSCE and their colleagues ran a multicenter, retrospective cohort study to assess contemporary use of operator directed sedation (ODS) and anesthesiologist care (AC) in the pediatric/congenital cardiac catheterization laboratory (PCCL), specifically evaluating whether the use of operator-directed sedation was associated with increased risk of major adverse events. Their results suggest that across a range of hospitals, ODS was used safely and with improved efficiency. Clinical judgment better identified cases in which ODS could be used than pre-procedural risk score. This should inform future guidelines for the use of ODS and AC in the catheterization laboratory.

Identifying preoperative pulmonary venous obstruction in total anomalous pulmonary venous connection (TAPVC) is important to guide treatment-planning and risk prognostication. No standardized echocardiographic definition of obstruction exists in the literature. A research team including Andrew C. Glatz, MD, MSCE developed a novel quantitative metric of pulmonary venous flow, which was superior to traditional echocardiographic metrics. Decreased PVVI was highly associated with elevated gradients measured by catheterization and clinical preoperative obstruction.

About CPCE

We are a pediatric research center dedicated to discovering and sharing knowledge about best practices in pediatric care by facilitating, organizing and centralizing the performance of clinical effectiveness research -- research aimed at understanding the best ways to prevent, diagnose and treat diseases in children. CPCE’s multidisciplinary team conducts research on a diverse range of clinical effectiveness topics.

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