Serial and parallel organ-at-risk-specific noncoplanar arc optimization for small versus large target volumes in liver SBRT.

Noncoplanar arc optimization has been shown to reduce OAR doses in SRS/SRT and has the potential to reduce doses to OARs in SBRT. Extracranial targets have additional considerations, including large OARs and, in the case of the liver, volume constraints on the healthy liver. Considering pathlengths through OARs that encompass target volumes may lead to specific dose reductions as in the encompassing healthy liver tissue. These optimizations must also leverage delivery efficiency and trajectory sampling to ensure ease of clinical translation. The purpose of this research is to generate optimized static-couch arcs that separately consider serial and parallel OARs and arc delivery efficiency, with a trajectory sampling metric, towards the aim of reducing dose to OARs and the surrounding healthy liver tissue. Separate BEV cost maps were created for parallel, and serial OARs by means of a fast ray-triangle intersection algorithm. An additional BEV cost map was created for the liver which, by definition, encompasses the liver tumors. The individual costs of these maps were summed and combined with the sampling metric for 100 000 random combinations of arc trajectories. A search algorithm was applied to find an arc trajectory solution that satisfied BEV cost and sampling optimization, while also ensuring an efficient delivery was possible with a low number of arcs. This method of arc selection was evaluated for 16 liver SBRT patients characterized by small and large target volumes. Comparisons were made with a clinical arc template of coplanar arcs. Dosimetric plan quality was evaluated using published guidelines and metrics from RTOG1112. Four of five plan quality metrics for the liver were significantly reduced when planned with optimized noncoplanar arcs. Median (range) reductions of the volumes receiving 10, 18, and 21 Gy were found of 140.4 (295.8) cc (p = 0.001), 28.2 (230.6) cc (p = 0.002) and 18.5 (155.5) cc (p = 0.04). A significant increase in median (range) dose to the right kidney of 0.2 ± 0.9 Gy (p = 0.03) was also found using optimized noncoplanar arcs, which was below the tolerance of 10 Gy for all cases. The average number of arcs chosen was 4 ± 1. Optimizing serial and parallel OARs separately during static couch noncoplanar arc selection significantly reduced the dose to the liver during SBRT using a moderate number of arcs.

Promoting rigor and sustainment in implementation science capacity building programs: A multi-method study.

Background: The field of Implementation science (IS) continues to evolve, and the number and type of IS capacity building Programs (ISCBPs) are in flux. These changes push the field to revisit the accepted IS competencies and to guide sustainment of ISCBPs. Our objectives were: (1) compare characteristics of current ISCBPs; (2) identify recommendations to support ISCBP sustainment; (3) measure how often ISCBPs address IS competencies; (4) identify novel and important IS competencies for the field. Method: This multi-method study included ISCBPs delivering structured, longitudinal IS training, excluding single courses and brief workshops. We used three complementary methods to meet our objectives. First, we identified ISCBPs via an internet search and snowball sampling methods. Second, we surveyed these ISCBPs to identify areas of program focus, types of trainees, IS competencies addressed, and recommendations to sustain ISCBPs. Third, we conducted a modified Delphi process with IS researchers/leaders to reach consensus on the IS competencies that were both important and novel as compared to the IS competencies published to date. Results: Among 74 eligible ISCBPs identified, 46 responded (62% response rate). Respondent ISCBPs represented diverse areas of focus (e.g., global health, cardiopulmonary disease) and trainee stages (e.g., graduate students, mid-career faculty). While most respondent ISCBPs addressed core IS methods, targeting IS competencies was less consistent (33% for nongraduate/non-fellowship ISCBPs; >90% for graduate/national ISCBPs). Our modified Delphi process identified eight novel and important IS competencies related to increasing health equity or the speed of translation. Recommendations to sustain ISCBPs included securing financial administrative support. Conclusions: Current ISCBPs train learners across varying career stages in diverse focus areas. To promote rigor, we recommend ISCBPs address specific IS competencies, with consideration of these eight novel/emerging competencies. We also recommend ISCBPs report on their IS competencies, focus area(s), and trainee characteristics. ISCBP programs need administrative financial support. Plain Language Summary: There is a limited workforce capacity to conduct implementation science (IS) research. To address this gap, the number and type of IS capacity building Programs (ISCBPs) focusing on training researchers and practitioners in IS methods continue to increase. Our efforts to comprehensively identify and describe ISCBPs for researchers and practitioners highlighted four implications for leaders of ISCBPs related to program sustainment and rigor. First, we identified a range of contextual characteristics of ISCBPs, including the research topics, methods, and IS competencies addressed, and the types of trainees accepted. Second, given the variability of trainee types and research, rigorous ISCBP programs should tailor the IS competencies and methods addressed to the skills needed by the types of trainees in their program. Third, the field of IS needs to periodically revisit the competencies needed with attention to the skills needed in the field. We used a consensus-building process with ISCBP leaders and other IS experts to expand existing IS competencies and identified eight important, novel IS competencies that broadly relate to promoting health equity and speeding the translation of research to practice. Finally, as more institutions consider developing ISCBPs, we identified factors needed to support ISCBP sustainment, including ongoing financial support. In addition to these implications for ISCBP leaders, there are also policy implications. For example, IS journals may enact policies to require manuscripts evaluating ISCBP performance to report on certain contextual characteristics, such as the IS competencies addressed and types of trainees accepted. The field may also consider developing an accreditation body to evaluate the rigor of ISCBP curricula.

Social Determinants of Health Discussed with Mothers During Personal Visits Before and During the COVID-19 Pandemic.

Purpose: This report describes the social determinants of health (SDOH) discussed during personal visits at the time leading up to and during the first 4 months of the pandemic from families across the United States. Methods: This is a secondary analysis from a cluster randomized trial that embeds Healthy Eating and Active Living Taught at Home within Parents as Teachers (PAT). PAT is a national organization serving families prenatal through kindergarten, delivered by parent educators. After parent educators complete visits with mothers in the trial, they complete brief surveys including the question "Did issues with any of these come up during the visit?" with yes/no options for "Transportation," "Housing," "Food insecurity," "Childcare," "Financial constraint," or "Other." Results: Among the 60 mothers with visit records in the months before and during (March-July 2020) COVID-19, 55% identified as Hispanic or Latino and 52% reported food insecurity at baseline. During COVID-19, financial constraints and other SDOH were as common as they were before COVID-19; childcare issues were discussed less frequently and food security was discussed more frequently. When comparing the number of SDOH parent educators reported discussing with mothers in visits that took place before COVID-19 with the number of SDOH discussed in visits during COVID-19, the number of SDOH increased for 41% for mothers identifying as Hispanic or Latino and only 8% for non-Hispanic or Latino mothers. Conclusions: This study can help build an understanding of how COVID-19 is impacting families, and how these impacts may be inequitable. Clinical Trial Registration Number: NCT03758638.

Assessing Racial and Ethnic Discrimination in Children: A Scoping Review of Available Measures for Child Health Disparities Research.

Objectives: To characterize the availability, content, and psychometric properties of self-reported measures that assess race/ethnicity-related discrimination or psychosocial stress and have potential relevance to studies of health disparities in children and adolescents. Design: Using PRISMA extension guidelines for scoping reviews, we searched Ovid Medline, CINAHL, PsychInfo, and Scopus databases from 1946 to April 20, 2020, using the search terms "stress," "child," "adolescents," "discrimination," and "psychometrics." We limited the search to articles in English, with children and adolescents, in the United States. For each measure, we extracted information about the content, reliability, and construct validity. Results: The 12 measures that met inclusion criteria assessed discrimination or stress from racial discrimination in African American children and adolescents (n=8), acculturative stress in Hispanic/Latino children (n=1), or bicultural stress in Mexican American adolescents (n=2), and one measure assessed both discrimination-related and acculturative stress in Hispanic/Latino children. The majority (n=7) articles were published between 2001 and 2010. All discrimination measures evaluated individual experiences of discrimination and one also evaluated stressfulness of discrimination and coping. The acculturative stress measures assessed general stress and immigration-related discrimination, and the bicultural stress measures evaluated many different aspects of biculturalism. Conclusions: Despite the recent increased interest in the racial discrimination and stress as a contributor to racial or ethnic health disparities affecting U.S. children and adolescents, the small number of eligible measures identified and incomplete coverage of various types of racial and ethnic discrimination within and across population groups indicates a currently inadequate capacity to conduct child health disparity studies on this issue.

Disparities in Text Messaging Interventions to Improve Diabetes Management in the United States.

Substantial progress has been made in the development of evidence-based interventions to facilitate the management of type 2 diabetes. The increase in ownership of mobile phones has made short messaging services (SMS, or text messaging) a feasible way to enhance information delivery. The goals of this study were to 1) summarize characteristics of diabetes SMS interventions implemented in the United States and 2) identify the extent to which disadvantaged populations are represented in SMS-based diabetes management intervention studies. We conducted a literature search to identify published studies of type 2 diabetes self-management SMS interventions conducted with adults in the United States. Of the 792 articles retrieved, only 9 met inclusion criteria. We systematically extracted data on the theoretical basis, recruitment, incentives, inclusion/exclusion criteria, strategies toward ensuring a racially/ethnically or income-diverse sample, text message delivery, and study duration. Sixty-three percent of the participants across the nine studies were non-white. Only two studies reported participants' education level, and four captured non-English-speaking status. Interventions varied in offering one-way, two-way, or a combination of messaging strategies. Five studies did not describe cultural adaptations or report results separately for different cultural groups. None of the studies provided cell phones, and not having texting capability was an exclusion criterion for six studies. There is a dearth of published research on type 2 diabetes management interventions using text messaging among racially/ethnically or income-diverse populations. Future interventions should be better tailored to these target populations and include the collection of complete sociodemographic data and cell phone/smartphone availability, thereby ensuring cultural appropriateness.

Applying RE-AIM to Evaluate the External Validity of Weight Gain Prevention Interventions in Young Adults: A Systematic Review.

OBJECTIVES: The purpose of this review was to use RE-AIM (Reach, Effectiveness, Adoption, Implementation, Maintenance) to assess the extent to which weight gain prevention studies targeting young adults reported on elements of external validity. DESIGN: Systematic review. ELIGIBILITY CRITERIA: Articles of interest included a lifestyle/behavioral intervention targeting weight gain prevention. Eligibility criteria included the following: study design of randomized controlled trials, quasi-randomized control trials, or natural experiments; average participant age between 18 and 35 years; study duration of at least 12 months; and published in English between January 2008 and May 2018. Studies had to report weight or body mass index as a measured outcome and were excluded if they were paired with smoking cessation programs, were conducted in specific groups (ie, pregnant women, breast cancer survivors), or were follow-ups to weight loss studies. STUDY SELECTION: After removing duplicates, the search yielded 11426 articles. Titles and abstracts were screened by 1 reviewer; 144 articles were assessed in a full-text review by 2 reviewers. Discrepancies were resolved by consensus. Nine studies (13 articles) were included in the review. MAIN OUTCOMES MEASURES: Reported elements of the RE-AIM framework. RESULTS: A total of 9 studies met the selection criteria. All studies lacked full reporting on external validity elements. Of the total of 60 RE-AIM reporting criteria, 8 were reported by all 9 studies, 26 criteria were reported by fewer than 4 studies, and 22 criteria were not reported by any of the studies. DISCUSSION: There remains inadequate reporting of elements of external validity and generalizability in weight gain prevention studies. This is a significant scientific constraint that limits the information required to disseminate and implement prevention of weight gain interventions for population impact. Standardized reporting may be needed to ensure results that demonstrate not only internal validity but also external validity and generalizability are needed to promote public health impact.

Raising Well at Home: a pre-post feasibility study of a lifestyle intervention for caregivers and their child with obesity.

BACKGROUND: Few efficacious pediatric obesity interventions have been successfully translated and sustained in real-world practice, often due to inadequate fit with the priorities of under-resourced populations. Lifestyle interventions, which incorporate tailoring of essential weight loss ingredients and adaptation of mode and intensity to the living circumstances of children with obesity, are needed. The purpose of this pilot study was to test the feasibility and efficacy of a tailored lifestyle intervention for caregivers and their children with obesity, conducted in partnership with Envolve, Inc., a family of comprehensive health solutions and wholly owned subsidiary of Centene Corporation. METHODS: This 6-month pilot study employed a pretest-posttest design to assess the impact of a tailored lifestyle intervention delivered by peer coaches on (a) caregiver and child weight impacted by changes in dietary intake, walking, and screen time; (b) changes in the home environment; and (c) caregiver engagement and satisfaction. The intervention was delivered via 3 core home visits every 4-6 weeks, with additional support via text. RESULTS: The majority of caregivers were female (95.2%) and Black (73.7%). Children had median age of 11.1 years and majority were female (57.6%), with a median BMI near the 99th percentile (Mdn 98.8, IQR 3.5) or 118.3% (IQR 35.8) of the 95th percentile for their sex and age. Participants expressed high satisfaction with the program (mean range 96.7-100.0% agreement on satisfaction items). From baseline to post, caregivers' BMI decreased by 1.8% (p = 0.016, r = 0.22), while children's BMI percentile z-score decreased significantly (p = 0.023, r = 0.18) and BMI percent of the 95th percentile remained constant (p = 0.05, r = 0.15). Caregivers and children decreased sugar-sweetened beverage intake (p = 0.026, r = 0.22; p = 0.006, r = 0.23, respectively), reduced presence of soda in the home (p = 0.002, g = 0.43), and decreased screen time (p = 0.046, g = 0.22). Other eating and walking behaviors remained stable for caregivers and child. CONCLUSION: The Raising Well at Home pilot demonstrated that tailored lifestyle interventions, delivered by peer coaches in the home and via text, are feasible and can improve weight, eating, and environmental measures of caregivers and children with obesity. Future work should determine the effectiveness, sustainability, and scalability of this intervention in sites located across the country. TRIAL REGISTRATION: ClinicalTrials.gov (NCT04224623). Registered 9 January 2020-retrospectively registered.

Developing priorities to achieve health equity through diabetes translation research: a concept mapping study.

Introduction: The goal of diabetes translation research is to advance research into practice and ensure equitable benefit from scientific evidence. This study uses concept mapping to inform and refine future directions of diabetes translation research with the goal of achieving health equity in diabetes prevention and control. Research design and methods: This study used concept mapping and input from a national network of diabetes researchers and public health practitioners. Concept mapping is a mixed-method, participant-based process. First, participants generated statements by responding to a focus prompt ("To eliminate disparities and achieve health equity in the prevention and treatment of diabetes, research should…"). Participants then sorted statements by conceptual similarity and rated each statement on importance and feasibility (Likert scale of 1-5). A cluster map was created using multidimensional scaling and hierarchical cluster analysis; statements were plotted by average importance and feasibility. Results: Ten clusters were identified containing between 6 and 12 statements from 95 total generated statements. The ranges of average importance and feasibility ratings for clusters were fairly high and narrow (3.62-4.09; 3.10-3.93, respectively). Clusters with the most statements in the "go-zone" quadrant (above average importance/feasibility) were community and partner engagement (n=7), dissemination and implementation principles (n=4), and enrichment and capacity building (n=4). Clusters with the most statements in the "innovative-targets" quadrant (above average importance, below average feasibility) included next generation interventions (n=6), policy approaches (n=4), and interventions for specific populations (n=4). Conclusions: This study created a framework of 10 priority areas to guide current and future efforts in diabetes translation research to achieve health equity. Themes rated as highly important and feasible provide the basis to evaluate current research support. Future efforts should explore how to best support innovative-targets, those rated highly important but less feasible.