bluuebunny/crossref_metadata_2025 huggingface dataset:
The use of autoencoders for training neural networks with mixed categorical and numerical features
Authors: Delong Łukasz , Kozak Anna
Published: April 2023

We focus on modelling categorical features and improving predictive power of neural networks with mixed categorical and numerical features in supervised learning tasks. The goal of this paper is to challenge the current dominant approach in actuarial data science with a new architecture of a neural network and a new training algorithm. The key proposal is to use a joint embedding for all categorical features, instead of separate entity embeddings, to determine the numerical representation of the categorical features which is fed, together with all other numerical features, into hidden layers of a neural network with a target response. In addition, we postulate that we should initialize the numerical representation of the categorical features and other parameters of the hidden layers of the neural network with parameters trained with (denoising) autoencoders in unsupervised learning tasks, instead of using random initialization of parameters. Since autoencoders for categorical data play an important role in this research, they are investigated in more depth in the paper. We illustrate our ideas with experiments on a real data set with claim numbers, and we demonstrate that we can achieve a higher predictive power of the network.
Metaphysically Opaque Grounding
Authors: Rydéhn Henrik
Published: April 2023

This article explores the concept of metaphysically opaque grounding, a largely neglected form of metaphysical grounding that challenges the commonly held assumptions that grounding is an especially intimate and powerful connection between facts and that it is necessarily connected with the essences of things. I provide a definition of opaque grounding, identify some interesting philosophical views that are committed to it, and explore some consequences for the general theory of grounding. Finally, I briefly address some natural initial doubts about opaque grounding and find them unwarranted. The upshot is that the notion deserves more attention than it has previously received.
12 Comparison of induction agents for rapid sequence intubation in refractory status epilepticus
Authors: Woodward Matthew , Schleicher Samantha , Podell Jamie , Chang Wan-Tsu , Motta Melissa , Pergakis Melissa , Parikh Gunjan , Badjatia Neeraj , Morris Nicholas
Published: April 2023

OBJECTIVES/GOALS: Multiple induction agents can facilitate rapid sequence intubation (RSI) in management of refractory status epilepticus (rSE), many which have anti-seizure properties. We examine the anti-seizure efficacy and safety of induction agents used during RSI in the management of rSE. METHODS/STUDY POPULATION: We conducted a single-center retrospective review of patients admitted to the neuro-ICU intubated for management of rSE. Propofol, ketamine and benzodiazepines were considered anti-seizure medication (ASMs), etomidate was not. Patients were treated with propofol or midazolam following intubation. Our primary outcome was clinical or electrographic recurrence of SE within 12 hours of intubation. Exploratory outcomes included time to recover command following, duration of mechanical ventilation (MV) and complications related to intubation. We used multivariable logistical regression to evaluate outcomes between patients induced with ASMs and etomidate. A Fisher exact test was used to compare rSE cessation in a subset of patients with continuous electroencephalography (cEEG) at the time of intubation. RESULTS/ANTICIPATED RESULTS: We identified 149 induced for RSI in management of rSE: 88 patients intubated using ASMs (propofol,n=56; ketamine,n=14; benzodiazepines,n=18) and 61 patients intubated with etomidate. Forty-one patients had recurrence (29.9% ASMS, 24.6% etomidate). The induction agent was not associated with recurrence of SE, time to command following, or duration of MV. Twenty-seven patients had cEEG monitoring at the time of intubation. Sixteen of the 22 patients induced with ASMs had cessation of rSE with induction, while 1 of 5 intubated with etomidate had cessation (Fisher exact test, p=0.047). There were 34 patients with post-induction hypotension (22.9% ASMs, 22.9% etomidate (Fisher exact test, p=1)). DISCUSSION/SIGNIFICANCE: Induction with an anti-seizure medication during intubation was more likely to halt rSE, but did not decrease the likelihood of clinical or electrographic recurrence of rSE and may not affect time to recovery of command following or duration of MV.
56 Using machine learning to predict 30-day readmission and reoperation following resection of supratentorial high-grade gliomas: A national analysis of 9,418 patients.
Authors: Ghaith Abdul Karim , Ghanem Marc , Zamanian Cameron , Bon Nieves Antonio A. , Bhandarkar Archis , Nathani Karim , Bydon Mohamad , Quiones-Hinojosa Alfredo
Published: April 2023

OBJECTIVES/GOALS: High-grade gliomas (HGG) are among the rarest, most aggressive tumors in neurosurgical practice. We aimed to identify the clinical predictors for 30-day readmission and reoperation following HGGs surgery using the NSQIP database and seek to create web-based applications predicting each outcome. METHODS/STUDY POPULATION: We conducted a retrospective, multicenter cohort analysis of patients who underwent resection of supratentorial HGG between January 1, 2016, and December 31, 2020, using the NSQIP database. Demographics and comorbidities were extracted. The primary outcomes were 30-day unplanned readmission and reoperation. A stratified 80:20 split of the available data was carried out. Supervised machine learning algorithms were trained to predict 30-day outcomes. RESULTS/ANTICIPATED RESULTS: A total of 9,418 patients were included in our cohort. The rate of unplanned readmission within 30 days of surgery was 14.9%.Weight, chronic steroid use, pre-operative BUN, and WBC count were associated with a higher risk of readmission. The rate of early unplanned reoperation was 5.47%. Increased weight, higher operative time, and a longer period between hospital admission and the operation were linked to increased risk of early reoperation. Our Random Forest algorithm showed the highest predictive performance for early readmission (AUC = 0.967), while the XG Boost algorithm showed the highest predictive performance for early reoperation (AUC = 0.985).Web-based tools for both outcomes were deployed: https://glioma-readmission.herokuapp.com/, https://glioma-reoperation.herokuapp.com/. DISCUSSION/SIGNIFICANCE: A high fraction of documented early unplanned readmission and reoperation were considered preventable and related to surgery. Machine learning allows better prediction of resected HGG’s prognosis based on findings from baseline methods leading to more personalized patient care.
65 Gene-specific risk of syndrome-associated cancers in first-degree relatives of pancreatic cancer patients with pathogenic/likely pathogenic variants
Authors: Chen Xuan , Rabe Kari G. , Meyer Margaret A. , Kemppainen Jennifer L. , Horibe Masayasu , Chandra Shruti , Majumder Shounak , Petersen Gloria M.
Published: April 2023

This abstract is based on unpublished data. OBJECTIVES/GOALS: The estimates of unbiased first-degree relatives (FDRs) risk of cancers would enhance genetic counseling of at-risk FDRs in families where the pancreatic cancer (PC) proband carrying a germline variant. This study aims at quantifying gene-specific risks of six cancers among FDRs of PC patients with germline variants in cancer-associated genes. METHODS/STUDY POPULATION: In the prospective, clinic-based Mayo Clinic Biospecimen Resource for Pancreas Research registry, 4,562 PC patients had previously undergone germline genetic testing for pancreatic cancer-associated genes through either research studies or clinical testing. Of these, 234 PC probands were found to carry germline pathogenic/likely pathogenic variants (PLPV) among 9 genes of interest and had provided detailed demographic and cancer data on their FDRs by questionnaire. We focused on six cancer types (ovary, breast, uterus, pancreas, colon, and malignant melanoma) in FDRs as reported by the probands. Standardized incidence ratios were calculated to estimate risk of six cancers among FDRs of PC patients carrying PLPV by gene. RESULTS/ANTICIPATED RESULTS: 1,670 FDRs (mean age 58.1+17.8SD; 48.9% female) were included in the study. We found significantly increased risk of ovarian cancer in female FDRs of PC probands who carry PLPV in BRCA1 (SIR 9.49, 95%CI:3.06-22.14) or BRCA2 (3.72, 95%CI:1.36-8.11), and breast cancer risks were higher with BRCA2 (2.62, 95%CI:1.89-3.54). Uterine cancer risk was increased in FDRs of PC probands who carry PLPV for Lynch Syndrome mismatch repair (MMR) (6.53, 95%CI:2.81-12.86). PC risk was also increased (ATM 4.53, 95% CI:2.69-7.16; BRCA2 3.45, 95%CI:1.72-6.17; CDKN2A 7.38, 95%CI:3.18-14.54; PALB2 5.39, 95%CI:1.45-13.79). Increased colon cancer risk was observed in FDRs of probands who carried MMR PLPV (5.83, 95%CI:3.70-8.75), while melanoma risk was elevated for FDRs of probands with CDKN2A PLPV (7.47, 95%CI:3.97-12.77). DISCUSSION/SIGNIFICANCE: PLPV in nine syndrome-associated genes in PC probands are associated with increased risk of six cancers in FDRs. The findings underscore the importance of risk estimation of various other cancers in PC families for screening, early detection, intervention, and cascade genetic testing.
77 METHODS FOR IDENTIFYING FILIPINO GENDER MINORITIES AND MENTAL HEALTH RISKS IN ELECTRONIC HEALTH RECORDS
Authors: Bumanglag Charlene , Mikhail Stephanie , Rumler Renee , Davis James , Goebert Deborah
Published: April 2023

OBJECTIVES/GOALS: Aim 1: To explore methodologies to identify gender minorities, and Filipinos, separately, in an electronic health record system. Aim 2: To characterize the similarities and differences in demographic, socioeconomic, and mental health of Filipinos gender minorities compared to Native Hawaiian Pacific Islanders, and White/ European Americans. METHODS/STUDY POPULATION: This study was approved by the University of Hawaii Institutional Review Board. Cross-sectional retrospective data were obtained from a collaborative community clinic’s electronic health record system. Patients were age 18 and older with a clinical diagnosis for gender dysphoria and from Native Hawaiian Pacific Islander, White/ European American, and Filipino backgrounds. RESULTS/ANTICIPATED RESULTS: Preliminary data revealed that 11% of the clinical population were diagnosed with gender dysphoria (N=373) with 57.6% (n=215) who met the inclusion criteria with complete health registration forms. Patients were from Filipino (21.8%), Native Hawaiian Pacific Islander (23.3%), White/ European American (31.6%), and multiethnic (23.3%) backgrounds. Most patients reported mental health (e.g., depression) conditions (50.6%-64.7%). Further statistical analyses will reveal if Filipinos have higher or lower levels of anxiety, depression, and suicide risks than Native Hawaiian Pacific Islander, and White/ European American gender minority individuals. DISCUSSION/SIGNIFICANCE: In Hawaii, one person dies by suicide every two days; suicide is the lead cause of fatal injuries. Study findings can inform future methodology studies to identify gender minorities and develop culturally relevant gender affirming mental health programs for gender minorities.
87 Access to Neurosurgical Research Opportunities and Gender-Concordant Mentorship in Various Countries
Authors: Odonkor Michelle N. , Pahwa Bhavya , Rincon-Torroella Jordina , Abu-Bonsrah Nancy , Huang Judy , Groves Mari
Published: April 2023

OBJECTIVES/GOALS: modonko1@jhmi.edu METHODS/STUDY POPULATION: Michelle Odonkor RESULTS/ANTICIPATED RESULTS: I accept DISCUSSION/SIGNIFICANCE: No, I do not want my poster published JCTS.
97 Factors Associated with Confidence in Career Progression among Underrepresented Post-doctoral Fellows and Early-career Faculty
Authors: Thakar Maya , Rubio DM , Murrell AJ , Morone NE , Mitchell Miland C , White GE
Published: April 2023

OBJECTIVES/GOALS: Underrepresented (UR) biomedical researchers leave research positions at a disproportionate rate. We aim to identify factors associated with confidence in career progression and intent to continue clinical research training in UR post-doctoral fellows and early-career faculty. METHODS/STUDY POPULATION: Building Up is a cluster-randomized trial at 25 academic institutions. In September-October 2020, 224 participants from the Building Up study completed the pre-intervention assessment, which included questions on demographics, science identity, mentoring competency, confidence in career progression, and intent to continue clinical research training. Using multinomial logistic regression controlling for gender and race/ethnicity, we identified factors associated with confidence in career progression, and intent to continue clinical research training. Statistically significant findings are reported. RESULTS/ANTICIPATED RESULTS: The cohort (N=219) is 80% female, 33% non-Hispanic Black, and 34% Hispanic. Having mentors that address diversity was associated with belief that career advancement is as open to them as anyone else (OR=1.7) and confidence in ability to overcome professional barriers (OR=1.4). Higher science identity (OR=4.0) and having mentors who foster independence (OR=1.7) were associated with confidence in ability to progress in career. Higher science identity was also associated with confidence in ability to overcome professional barriers (OR=2.2) and intent to continue studying biomedical sciences (OR=3.4). Being faculty (OR=3.8), higher science identity (OR=3.8), and having mentors that align expectations (OR=2.3) were associated with intent to continue clinical research training. DISCUSSION/SIGNIFICANCE: These findings suggest that science identity and mentoring play key roles in confidence in career progression and intent to continue clinical research training. These factors are important to consider in retaining UR early-career biomedical researchers.
107 Pathway to Independence Award (K99/R00) Funding Trends and Prediction of Future NIH Research Project Funding
Authors: Markowitz Daniel M. , Gillen Kelly M. , Long Patricia , Villegas-Estrada Adriel , Anglon Gabriela , Chang Eileen , Gupta Ajay
Published: April 2023

OBJECTIVES/GOALS: The objective of this study was to use NIH RePORTER (Research Portfolio Online Reporting Tools) to analyze K99 funding trends and determine if R00 to R01 or R21 achievement time correlates with the future success of an early-stage NIH-funded investigator. METHODS/STUDY POPULATION: All award data were collected from NIH RePORTER. All K99 awards and funding data in this study were limited to All Clinical Departments (ACD). All researchers (n = 1,148) and awards (n = 2,022) were identified through a K99 search from FY 2007 to FY 2022 across ACD. Historic trends in K99 awards and funding from NIH Fiscal Year (FY) 2007 to FY 2022 were investigated. An R00 dataset was generated from NIH RePORTER. The K99 to R00 achievement statistics from FY 2007 to FY 2022 was investigated. NIH annual datafiles for FY 2007 to FY 2021 were aggregated to generate a master datafile of all R01 (n = 395,505) and R21 awards (n = 61,766). R01 and R21 award data were linked to the researcher previously identified through the K99 search. The connection between K99/R00 awardees and subsequent R01 or R21 awards was focused on. RESULTS/ANTICIPATED RESULTS: From FY 2008 to FY 2022, the number of K99 awards per year increased 123.4%, from 94 to 210. Over the same period, after correcting for inflation, the NIH K99 budget increased 127.0% while the NIH program level budget increased 17.3%. For researchers who achieved their first R01 or R21 0–3 years versus 3–6 years after the start of their R00, their average funding per year since the start of the R00 phase was $467,425 versus $290,604, respectively (p < 0.001). In summary, NIH investment in the K99 award pathway has substantially outpaced the NIH program level budget increase, and there is a strong relationship between average funding per year since the start of the R00 phase and time from R00 to R01 or R21. DISCUSSION/SIGNIFICANCE: Our study offers additional evidence of the Matthew effect in science, where previous success generates future success. This analysis may be useful to clinical departments as they evaluate selecting new and retaining current biomedical scientists for independent research positions.
111 Regional Expansion of a TL1 Program to Serve the 5 State Washington, Wyoming, Alaska, Montana and Idaho Region
Authors: Worku Milu , Thompson Hilaire , Moore Megan , Lackey Russell , Wiedenheft Blake
Published: April 2023

OBJECTIVES/GOALS: The ITHS TL1 program is designed to grow trainees’ competence and knowledge in translational research. Our objective is to expand the program to the 5-state Washington, Wyoming, Alaska, Montana, and Idaho (WWAMI) region by establishing a TL1 cohort at Montana State University (MSU). METHODS/STUDY POPULATION: Interdisciplinary training at the predoctoral level is ideal for preparing the future translational workforce. At this stage in their training, they have developed disciplinary expertise but have not yet narrowed their specializations. By expanding the TL1 program to include both University of Washington (UW) and MSU we are amplifying the robust academic research networks of both institutions, particularly programs in rural health equity, rural and tribal populations, and emerging infectious diseases. Using a collaborative, online educational model we will bring together trainees in a multi directional, joint training effort utilizing existing and emerging collaborations. RESULTS/ANTICIPATED RESULTS: The anticipated outcome is to create a single program by bringing together a cohort of scholars from various disciplines spanning the translational science spectrum, with diverse types of research experience which enables them to learn from each other in a diverse setting. This will allow the program to more effectively grow trainee’s competencies and knowledge in multidisciplinary translational research methodology, as well as build skills in team science and cross-disciplinary communication. DISCUSSION/SIGNIFICANCE: If successful, the ITHS TL1 program will prepare translational scientists with an awareness of diverse perspectives and contemporary research challenges. This would benefit the 5 state WWAMI region, which covers 27% of the total land mass of the US.
125 Thoughts on Designing a Summer Internship for Undergraduates at an Academic Medical Center
Authors: Spratt Heidi
Published: April 2023

OBJECTIVES/GOALS: The overall goal is to provide tips and suggestions for designing a summer internship program for undergraduates at an institution that only offers advanced degrees. This poster seeks to highlight what worked well and items that can be improved upon from a program that ran for the first time at the University of Texas Medical Branch in Summer 2022. METHODS/STUDY POPULATION: In February 2022, we opened admissions to a summer internship program whose goals are to expose students to statistical design and analysis problems from real research, while providing them with the conceptual and technical tools to address these problems. As such, students should be able 1) to assess study designs for strengths and weaknesses in addressing specific biomedical questions, 2) to use the tools of statistical modeling, data science, and hypothesis testing along with state-of-the-art statistical software to work on problems as well as produce results and conclusions for these problems, and 3) to understand how developing these skills can lead to a wide variety of career opportunities both inside and outside of academia. We ultimately recruited 12 participants in the first summer. RESULTS/ANTICIPATED RESULTS: Based on feedback from participants, we have identified recruitment efforts that worked (and those that need improvement), teaching methods that worked (as well as those that need improving), and ideas for career development sessions (based on questions generated from current participants). Each participant was paired with another student on a research project. Each research project had both a biostatistics faculty mentor as well as a basic science/clinical faculty mentor. We will discuss what worked/what needs improvement from this sort of situation as well. The program culminated in a poster session which was very well received by participants and faculty alike. DISCUSSION/SIGNIFICANCE: This internship program is significant because developing a workforce knowledgeable in biostatistics and data science has been increasingly in demand to improve the efficiency and reliability of biomedical innovation. My providing guidance to others hoping to provide similar programs, we aim to develop such skills in the incoming workforce.
150 A Mixed Methods Pilot Study of Telemedicine Group Visits for Chronic Migraine in a Safety Net Health System
Authors: Joe Elizabeth , Stone Chelsea , Sadoughi Tahoora , Koppula Rama , Towfighi Amytis , Sahai-Srivastava Soma
Published: April 2023

OBJECTIVES/GOALS: Limited specialty care within safety net health systems reduces availability of follow-up appointments for chronic conditions. We evaluated patient acceptability of a 6 month series of telemedicine group medical visits for chronic migraine at a county hospital-based clinic as a potential method to improve access to specialty care in this setting. METHODS/STUDY POPULATION: We developed and implemented a pilot program of monthly physician-led telemedicine group visits to provide routine follow-up care for adults with chronic migraine. Visits were conducted through the neurology clinic at LAC+USC medical center, a safety net hospital in Los Angeles and included an educational component, peer support, and the opportunity to address individual needs or refill medications. We assessed headache severity (HIT-6) and mood (PHQ-9) through telephone surveys before and 6 months after patients’ first telemedicine group visit and compared timepoints using paired t-tests. Patient acceptability of the group visits was elicited through focus groups and key themes identified using grounded field theory. RESULTS/ANTICIPATED RESULTS: Baseline data was available for 18/20 pilot participants. Patients were predominantly female (89%) with mean age of 46 (SD 8.6). Mean HIT-6 was 65/78 reflecting a very severe impact on daily life, and mean PHQ-9 was 8.7 reflecting mild depressive symptoms. There was no statistically significant change in either HIT-6 (mean difference 2.36, p=0.34) or PHQ-9 (mean difference 2.09, p=0.12) after group participation. Key themes from the focus groups included lack of prior exposure to other people with similar headache burden and logistical barriers to care, such as difficulty contacting a provider or extended clinic wait times. Primary patient-reported benefits included more frequent access to a provider and peer support. DISCUSSION/SIGNIFICANCE: Telemedicine group visits for chronic migraine are feasible in a safety net context and were well-received by patients. However, this pilot study did not show a benefit of telemedicine group visits for headache control or mood symptoms.
152 A Program to Deliver Education in Digital Literacy to Create Equity for Elders
Authors: Quattrin Teresa , Strohmeier Andrew , Cadzow Renee , Regling Ashley , O’Byrne Erin , Yerkovich Sasha
Published: April 2023

OBJECTIVES/GOALS: Older adults are affected by insufficient access to digital technology including digital healthcare. The aim of this program is to improve digital literacy in elders who were not using digital devices due to age and socioeconomic inequities. We provided technology and education on topics relevant but not limited to navigating health care. METHODS/STUDY POPULATION: Through partnerships with a non-profit organization helping elders to age well and independently (cohort 1 ongoing n=9) and an urban place of worship (cohort 2 starting), we reached out to elders residing in urban Buffalo, NY’s poorest zip codes. Participants received free tablets and Wi-fi hotspots. Participants received weekly interactive sessions over 6 months at their apartments or a place they felt comfortable with. A curriculum was developed but the sessions were not limited to digital health care, rather were also tailored to other individual needs like shopping on line, communication with loved ones, etc. A baseline, mid and post survey were administered to assess needs before the program and measure the impact of the program. An effort was also deployed in identifying a source of connectivity post program. RESULTS/ANTICIPATED RESULTS: The participants were elders who did not have computer/digital knowledge and/or access to the digital world. Mid-intervention data show that 9/9 used the tablets, learned basic skills and felt more comfortable/confident using a digital device. 5/9 participants used their hotspots and the remaining learned to use Wi-Fi provided by the facility they live in. While at baseline only 1/9 participants had attempted to use patient portals, mid-intervention data showed that 8/9 accessed portals. Importantly, the participants are also using other digital functions essential to their well-being including streaming, shopping, bill paying, and communicating with loved ones. Preliminary post-surveys suggest that all participants now rate their internet literacy and web searching skills at an acceptable/good level. DISCUSSION/SIGNIFICANCE: Tailored support and access to technology led to uptake of digital technology among elders, enabling them to access health-related resources and other web activities which improved their quality of life and led to digital equity. This project can be leveraged to obtain funding to train trusted members of the community as digital literacy ambassadors.
163 Building a Supportive Community-Engaged Research (CEnR) Infrastructure: Assessing and Addressing the Interests and Educational Needs of Researchers and Community Partners
Authors: Moodie Paula , Murray Andrea , Poger Jennifer , Schrodel Jess Abrams
Published: April 2023

OBJECTIVES/GOALS: Identify ways surveys capture the needs of researchers and community partners (CPs) to build a supportive community-engaged research (CEnR) infrastructure Identify strategies to match existing CEnR researchers and CPs who are interested in future CEnR projects Address educational needs of CPs and researchers for sustainable partnerships METHODS/STUDY POPULATION: The Penn State Community Health Equity & Engagement Research (CHEER) Initiative team developed and implemented surveys to capture the unique interests of Penn State researchers and community partners (CPs) in an effort to build a supportive community-engaged research (CEnR) infrastructure. CPs and researchers were identified from the Penn State Clinical and Translational Science CEnR Core, prior engagement in research studies, and through tracking systems of individuals interested in research. The researcher and CP surveys ascertained detailed information of existing CEnR projects and interests in future community-academic partnerships. These results guided six workshops including an Introduction to Community-Engaged Research, Community-Facing Grant Writing, and Research Ethics Training for CPs. RESULTS/ANTICIPATED RESULTS: A total of 99 PSU researchers and 119 community partners (CPs) throughout PA communities completed the baseline surveys. From the data collected, the CHEER Initiative cataloged over 100 CEnR projects, researcher interests, resources/support needed to jumpstart future CEnR projects, types of CPs, PA regions represented by CPs and researchers, and training resources needed to prepare CPs to engage in research efforts. Heat maps illuminating researcher/CP engagement were generated from survey results. While CEnR research projects spanned all 67 PA counties, several studies were in concentrated areas, and thus allow for opportunities to target CEnR outreach in less engaged areas. Data analysis from follow-up surveys will continue to serve as a foundation to best support existing and future CEnR projects. DISCUSSION/SIGNIFICANCE: The CHEER Initiative’s purpose is to reduce health disparities and increase wellness throughout underrepresented PA communities by promoting community-engaged research (CEnR). Surveys used to capture both CEnR interests of Penn State researchers and community partners built a successful and sustainable infrastructure for meeting this goal.
166 Community Driven Research Day: Addressing Community Needs in Rural Pennsylvania
Authors: Murray Andrea E. , Miller Miriam , Zgierska Aleksandra E.
Published: April 2023

OBJECTIVES/GOALS: Describe the community of Norther Dauphin County, PA and increase awareness of this community’s health related needs. Establish partnerships between Penn State faculty and Northern Dauphin County community-based organizations to develop an optimal approach to address identified health related needs. METHODS/STUDY POPULATION: Northern Dauphin is located in the rural Northern Tier of Dauphin County, PA and has roughly 30,000 residents within 272 square miles. Of those residents, approximately 1 in 4 families live below the poverty level. Although over 6,000 residents receive Medical Assistance (MA), only one local provider accepts MA covered patients. Residents have limited access to health care due to the rurality of the area when paired with a lack of public transportation. The Penn State Clinical and Translational Science Institute (CTSI) Community Engaged Research Core (CERC) has partnered with Northern Dauphin County community- based organizations to explore the needs of community members and how partnerships with Penn State Faculty could help to address the community needs. RESULTS/ANTICIPATED RESULTS: A Community Advisory Board (CAB) of leaders (e.g., school officials, business owners) was created to identify community needs. After an initial workshop with the CAB, an assessment was created and distributed to the larger community to identify the top community health needs. Details from the assessment were then used to prioritize the themes for the Community Driven Research Day (CDRD). The CERC team identified Penn State University faculty with research interests related to these prioritized themes. The faculty identified and community leaders were then invited to the CDRD. The agenda for the event included an introduction to Community Engaged Research, a presentation from a researcher and community partner working together, round table discussions based on the themes selected, and an overview of pilot grants. DISCUSSION/SIGNIFICANCE: The CDRD will facilitate partnerships between the Penn State faculty and local community leaders to help effectively move forward addressing the community’s health needs. The PSU CTSI will offer pilot grants to formalize and strengthen these partnerships and conduct community engaged research initiatives to discover optimal ways to address them.
167 Community Engagement Forum: Sharing best practices in community-engaged research
Authors: Gordon Kaylee Rivera , Tamez Montelle , Fisher Mary , Nease Donald E.
Published: April 2023

OBJECTIVES/GOALS: The Community Engagement Forum (CEF), a quarterly series hosted by the Colorado Clinical and Translational Science Institute (CCTSI) and the ACCORDS Education program, provides seminars from leading academic and community research partners. Our goal is to share the process and outcomes so others may implement a similar forum in their institution. METHODS/STUDY POPULATION: In 2019, CCTSI and the ACCORDS Education Program partnered to offer a forum to exchange best practices for investigators and study teams conducting community-engaged research. Each forum features presenters from community and academic partnerships. Initially this series was offered in-person; during the COVID-19 Pandemic the Forum moved online. At registration we collect data on current position, school/department or organization, and how they heard about the forum. Post session evaluations are also collected. Various topics have been covered including: community engagement foundations, creating advisory boards, responding appropriately to community needs in a pandemic, data equity, and community dissemination. RESULTS/ANTICIPATED RESULTS: Between October 2019 and October 2022, we hosted twelve Community Engagement Forums. A total of 442 people have attended the forums, with the School of Medicine having the highest representation. Among attendees, university research staff are the highest represented position in attendance, with 115 attendees over the 12 forums. 133 people have completed evaluation questions since the start of the forum series. High percentages of agreement were seen from the question, will you use this information to make adjustments/improvements or continue the conversation . Additionally, most respondents agreed that the presentations were useful to their current or future work. DISCUSSION/SIGNIFICANCE: The CEF series has filled a gap for desired resources related to best practices for community-engaged research. CCTSI CE&HC and ACCORDS Education have created a learning community for investigators and study teams to share lessons learned and provide opportunities for trouble-shooting research ideas as they arise.
174 Development of an Individualized Responsive Feeding Coaching Intervention
Authors: Bahorski Jessica , Romano Mollie , McDougal Julie May , Kiratzis Edie , Paek Insu
Published: April 2023

OBJECTIVES/GOALS: Responsive infant feeding (RIF) promotes healthy dietary patterns and infant weight gain. Research is needed to assist caregivers recognize infant hunger/satiety cues and overcome barriers to using RIF. The Learning Early Infant Feeding Cues (LEIFc) intervention was designed to fill this gap by using a validated coaching approach to promote RIF. METHODS/STUDY POPULATION: Guided by the Obesity-Related Behavioral Intervention Trials (ORBIT) model, this proof-of-concept study tests the feasibility and fidelity of the LEIFc intervention in mother-infant dyads (N=25). Study visits from the 3rd trimester of pregnancy to 4 months postpartum (PP) are conducted in family homes. Use of RIF via subjective (survey) and objective (video) measures is collected at 1 and 4 months PP. Prenatally written and video material on infant feeding and infant hunger/satiety cues is provided. At 2 and 3 months PP, coaching during a feeding session is provided by a trained interventionist using the SS-OO-PP-RR (super, Setting the Stage, Observation & Opportunities, Problem Solving & Planning, Reflection & Review) approach. Qualitative data on LEIFc are provided by the interventionist and participants. RESULTS/ANTICIPATED RESULTS: To date 25 dyads have been enrolled and 4 have completed all study visits. Preliminary analyses showed that subjective measure of awareness of infant cues increased post intervention (pre, M=4.38 vs post, M=4.63). LEIFc has been well accepted by participants including use of the SS-OO-PP-RR approach. Data suggests refinement to LEIFc is needed to include breastfeeding and mental health support as well as a longer duration of intervention through at least 6 months PP. An experienced interventionist is key to success of the research. All lost to follow-up (n=7) have occurred before the first PP visit suggesting that at study visit closer to birth is needed. Enrollment will continue through December 2022 and data collection through April 2023. DISCUSSION/SIGNIFICANCE: After refinement, the LEIFc intervention will be tested in a pilot RCT. The long-term goal is to implement LEIFc in the curricula of federally funded maternal-child home visiting programs who serve vulnerable populations; those that often have infant feeding practices that do not align with recommendations and are less likely to use RIF.
179 Effects of institutional racism on social determinants of heath and increased rates of mortality and morbidity amongst premature infants born to Black mothers
Authors: Diggs Stephanie , Rogers Cynthia , Vesoulis Zachary
Published: April 2023

OBJECTIVES/GOALS: Premature birth and its complications are among the largest contributions to infant death within the US. The rates of premature birth and infant death are significantly higher among African Americans. Therefore, there is an urgent need to understand the biological and social drivers of this health disparities to improve birth outcomes. METHODS/STUDY POPULATION: This is a retrospective cohort study of premature infants (< 28 weeks estimated gestational age, birth weight < 1500g) born within 2018 and 2021 to mothers who identify as either African American, or White/Caucasian Non-Hispanic and are cared for at Saint Louis Children’s Hospital Neonatal Intensive Care Unit. EPIC collected data will include maternal and fetal factors and social determinants of health (SDOH). ICD-9, ICD-10 codes for primary outcomes include grade 3-4 Interventricular Hemorrhage, moderate-severe Bronchopulmonary Dysplasia, Stage 2+ Necrotizing Enterocolitis, and moderate-severe Retinopathy of Prematurity. Will develop a composite variable score using the SDOH for risk/no risk using that for each disease outcome and mortality. Will use Chi-square test or T-test to compare groups. RESULTS/ANTICIPATED RESULTS: We are currently in the data collection phase of the study, but we anticipate seeing an increase in risk of all-cause morbidity as well as all-cause mortality for infants born to Black mothers compared to infants born to White mothers. We anticipate higher levels of disadvantage (increased area deprivation scores) and lower access to the goods and services deemed necessary for appropriate care of Black mothers and subsequent relation to outcomes for their infants. DISCUSSION/SIGNIFICANCE: Following analysis and assessment of that analysis we will discuss these findings and the impact on the general population and the needs for improvement and implementation of interventions upstream in the care of the vulnerable and special mother-baby-dyad population.
214 Relationships between Childhood Trauma Exposure, Mental Health, and Black-Identity in Black Pregnant Persons
Authors: Daniels Keziah Maria , Ravi Meghna , Karra Sriya , Wallace Shimarith , Powers Abigail , Michopoulos Vasiliki
Published: April 2023

OBJECTIVES/GOALS: Racial identity, one’s perception of that identity, and their perception of how others view their racial identity influences mental health. We aimed to assess the relationship between childhood trauma exposure, post-traumatic stress disorder (PTSD), and postpartum depression symptoms with individual Black identity in adulthood. METHODS/STUDY POPULATION: We examined whether racial identity, as measured by the regard subsection of the Multidimensional Inventory of Black Identity (MIBI), was impacted by childhood trauma exposure and related to PTSD and depressive symptoms in a sample of pregnant persons (N= 215, Mage=27.5, SDage=5.3) who identified within the Black diaspora, seeking prenatal care at Grady Hospital in Atlanta, GA. The regard subsection of the MIBI determines extent to which individuals feel positively about membership within the Black group (private regard) and the extent to which they think others feel positively about the Black group (public regard). We assessed childhood trauma using Childhood Trauma Questionnaire (CTQ) and depression and PTSD symptoms with Edinburgh Postnatal Depression Scale, and PTSD Checklist for DSM-5, respectively. RESULTS/ANTICIPATED RESULTS: Public regard (pubR) and private regard (privR) were significantly negatively correlated with childhood emotional abuse, emotional neglect, and overall childhood trauma exposure (all p’s.05). PrivR was significantly negatively correlated with both postpartum depression and PTSD symptoms (p DISCUSSION/SIGNIFICANCE: Ethnic-racial identity formation is a critical aspect of our psychological well-being, beginning in childhood and continuing across one’s lifespan. Our findings suggest that childhood trauma impacts racial identity in persons of the Black diaspora, which may contribute to negative mental health outcomes, including PTSD and depression.
230 The impact of the COVID-19 pandemic on stress, substance use, and teen dating violence among young adult women in Baltimore City
Authors: Davilmar Tesha , Trent Maria , Ryan Leticia , Flessa Sarah J. , Huettner Steven , Alinsky Rachel , Johnson Renee M. , Matson Pamela A.
Published: April 2023

OBJECTIVES/GOALS: Social distancing practices during COVID-19 may impact experience of stress, substance use and violence exposure. This study aims to describe the effect of the COVID-19 stay-at-home orders on stress, substance use, and teen dating violence (TDV) among young women living in Baltimore City. METHODS/STUDY POPULATION: Study participants were recruited from an observational study examining TDV before the COVID-19 pandemic, through snowball sampling, pediatric and adolescent primary care clinics, the pediatric emergency department, and a registry for patients interested in participating in COVID-19 research. Participants were between the ages of 16 and 22, identified as female, and lived in Baltimore, Maryland. They were asked to complete a baseline survey. March 16, 2020 (Maryland governor’s stay-at-home order) through June 2022 defined the COVID-19 pandemic period. The survey assessed stress experiences, including isolation, finances, job loss, transportation, school stress, substance use, experiences of violence and adherence to COVID-19 safety measures. We conducted descriptive and bivariate analyses. RESULTS/ANTICIPATED RESULTS: Participants (n=105) had a mean age of 19.4 years (SD 1.73). Preliminary analyses demonstrate that stress associated with isolation, finances, transportation, and school increased during the pandemic compared to pre-pandemic. In addition, the majority of participants who used marijuana, e-cigarettes, and alcohol used about the same amount or more of each substance during the pandemic. For the next steps, we will examine experiences of TDV for young women during the pandemic and examine whether experiences of TDV differ for young women who reported a greater adherence to COVID-19 safety measures compared to participants who adhered less. DISCUSSION/SIGNIFICANCE: Assessing the impact of COVID-19 safety measures on stress, substance use, and TDV is critical to informing and designing future public health interventions. In addition, the information obtained from this study may be used to address the unique challenges faced by disenfranchised populations while curbing the spread of infectious diseases.
240 Community Participant-based Study Design: Use of Virtual Focus Groups to Explore Acceptability of a Cooking Intervention among African-American Women Living in Washington, D.C.
Authors: Farmer Nicole
Published: April 2023

OBJECTIVES/GOALS: African-Americans are at increased risk for nutrition disparities; home cooking is a strategy to optimize dietary quality. to develop a cooking intervention, a mixed-methods community-based participatory, acceptability study was conducted to understand cooking behaviors, options for intervention content, and implementation factors. METHODS/STUDY POPULATION: Self-identified African-American adults were recruited from a larger community-based study within Washington, D.C. Five moderated virtual focus groups with four participants in each group were conducted in March and April of 2021. A semi-structured moderator’s guide focused on cooking, meal habits, food choices, and the proposed cooking intervention was utilized. Qualitative data collected were verbatim transcriptions and notes from research team members. Thematic analysis was conducted using an iterative process among research team members. Participant validation interviews were conducted following the research team analysis. Electronic self-administered surveys were used to measure demographic, food environment, cooking behavior, health behavior, and psychosocial variables. RESULTS/ANTICIPATED RESULTS: Study participants (n=20 females, mean age 60.1 years) lived in low-food resource neighborhoods but reported high food security (n=14). Barriers to the intervention included traveling distances to other neighborhoods for produce, poor quality of vegetables and fruit within neighborhood stores, lack of trustworthiness from neighborhood store experiences, perception of decreased cooking skills, and competing priorities related to time and weekday schedules. Motivators included health promotion for self, family, community, and enjoyment from cooking. Virtual or in-person sessions were suggested. Intervention options included costs of recipe ingredients, using recipes with ingredient flexibility, nutrition information, and provisioning of or compensation for ingredients used in virtual classes. DISCUSSION/SIGNIFICANCE: Use of virtual focus groups for a participant-based design of a cooking intervention among African American adults living in low-food access neighborhoods provided acceptability results that were food and home environments contextual and provided barriers and motivators to participation and implementation of behavior from the intervention.
273 Dystonia is associated with macro and microstructural abnormalities of the cerebellum: A nested case-control study
Authors: Mason Xenos , Haddad Elizabeth , Jahanshad Neda
Published: April 2023

OBJECTIVES/GOALS: Dystonia is a brain disorder which causes excessive muscle activation, manifesting as abnormal movements. Neuroimaging studies of dystonia have revealed changes in a network involving the cerebellum. We sought out to determine whether subjects with dystonia in the UK Biobank exhibit MRI-based cerebellar pathology. METHODS/STUDY POPULATION: This nested case-control study drew from the UK Biobank, a cohort of >500,000 subjects in the United Kingdom, aged 40-69, enrolled 2006-2010. Eligible subjects must have undergone diffusion-weighted brain MRI. Dystonia cases were ascertained using ICD10 codes. We selected controls without neurologic diagnoses, matched (1:3) on age, sex, imaging site, and medical comorbidities. Mean diffusivity, fractional anisotropy, intracellular and isotropic volume fractions, and orientation dispersion were extracted from four white-matter tracts (inferior, middle, superior cerebellar peduncles; superior thalamic radiations) along with cerebellum, basal ganglia, and whole-brain grey and white-matter volumes. Means were compared using two-tailed t-tests and the Benjamini-Hochberg procedure (FDR = 0.05). RESULTS/ANTICIPATED RESULTS: 23 cases of dystonia and 69 control subjects were selected and ascertained. After correcting for multiple-comparisons (40 volumetric and 35 diffusion-related), intracellular-volume-fraction (ICVF) of the middle- and superior-cerebellar peduncles was significantly lower in subjects with dystonia, suggesting reduced axon density. Volumetric analysis showed significantly reduced volumes of the motor cerebellum (lobules VI and VIII). There were no differences in basal ganglia, cortical, or whole-brain volumes. DISCUSSION/SIGNIFICANCE: These findings support the hypothesis that abnormalities of cerebellar networks contribute to dystonia. In future we will use similar techniques to assess these tracts in subjects with dystonia who are undergoing Deep Brain Stimulation, with the goal of guiding stimulation targeting, and predicting therapeutic outcomes.