Faculty Bibliography

BACKGROUND:Recent data suggest patients with graft failure had better access to repeat kidney transplantation (re-KT) than transplant-naive dialysis accessing first KT. This was postulated to be because of better familiarity with the transplant process and healthcare system; whether this advantage is equitably distributed is not known. We compared the magnitude of racial/ethnic disparities in access to re-KT versus first KT. METHODS:Using United States Renal Data System, we identified 104 454 White, Black, and Hispanic patients with a history of graft failure from 1995 to 2018, and 2 357 753 transplant-naive dialysis patients. We used adjusted Cox regression to estimate disparities in access to first and re-KT and whether the magnitude of these disparities differed between first and re-KT using a Wald test. RESULTS:Black patients had inferior access to both waitlisting and receiving first KT and re-KT. However, the racial/ethnic disparities in waitlisting for (adjusted hazard ratio [aHR] = 0.77; 95% confidence interval [CI], 0.74-0.80) and receiving re-KT (aHR = 0.61; 95% CI, 0.58-0.64) was greater than the racial/ethnic disparities in first KT (waitlisting: aHR = 0.91; 95% CI, 0.90-0.93; Pinteraction = 0.001; KT: aHR = 0.68; 95% CI, 0.64-0.72; Pinteraction < 0.001). For Hispanic patients, ethnic disparities in waitlisting for re-KT (aHR = 0.83; 95% CI, 0.79-0.88) were greater than for first KT (aHR = 1.14; 95% CI, 1.11-1.16; Pinteraction < 0.001). However, the disparity in receiving re-KT (aHR = 0.76; 95% CI, 0.72-0.80) was similar to that for first KT (aHR = 0.73; 95% CI, 0.68-0.79; Pinteraction = 0.55). Inferences were similar when restricting the cohorts to the Kidney Allocation System era. CONCLUSIONS:Unlike White patients, Black and Hispanic patients with graft failure do not experience improved access to re-KT. This suggests that structural and systemic barriers likely persist for racialized patients accessing re-KT, and systemic changes are needed to achieve transplant equity.

Objective: To identify the current state of knowledge among adolescent and young adults (AYAs) with sickle cell disease (SCD) on fertility, family building, and contraception. We aimed to identify recommendations and guidance for communication strategies and counseling methods in these areas. Design: Full-text publications were included if they focused on individuals with SCD, were published in English in peer-reviewed journals, and addressed patient or family knowledge of fertility, family building, or contraception. A comprehensive search using PubMed, CINAHL, Ovid MEDLINE, Embase, and PsycINFO was performed. Multiple reviewers independently assessed each abstract for inclusion, and a senior librarian resolved disagreements. Results: Of 2,885 publications screened, 314 underwent full review, and 11 were included. Of the included studies, three discussed fertility only, two discussed family building only, two discussed contraception only, two discussed contraception and fertility, one discussed contraception and family building, and one discussed fertility and family building. Two overarching gaps were identified: a lack of counseling related to reproductive healthcare provided to AYAs with SCD and limited knowledge regarding their own disease sequelae. Conclusion: Many AYAs are not counseled and are not knowledgeable about their fertility risks, family building options, and contraception choices. Furthermore, previous counseling guidelines on these subjects are limited, leading to incomplete and highly variable discussions between patient and clinicians on these subjects. This review highlights counseling recommendations and areas in which more concrete guidelines and evidence are important for the standardization of comprehensive reproductive healthcare in the AYA SCD population.

Efforts to bolster the school readiness of Latine children from low-income and immigrant homes have focused on fostering parent engagement in children's education. In assessing parent engagement, most measures center school-based activities in alignment with middle class, European American dominant norms, missing the multiple ways that Latine families engage with their children to support their educational experiences and development. Additionally, studies of predictors of Latine parent engagement have mainly focused on parent demographic and linguistic factors, limiting our understanding of how to support parent engagement equitably. Using a measure of parent engagement sensitive to culturally contextualized behaviors of Latine families, this study describes the ways Latine parents living in historically disinvested neighborhoods in New York City engage in their children's learning at home and in school during a nationally charged anti-immigrant, anti-Latine sociopolitical climate. We also examine whether immigration enforcement threat and parent health are associated with Latine family engagement in home and school-based activities. Data come from a larger study conducted with Latine parents (n=103; 42% immigrant) of pre-K children. Descriptive results indicate that despite a charged sociopolitical context, levels of engagement in children's education and development across multiple domains were comparable with mean levels established by the developers. Findings from regression analyses demonstrated that above and beyond demographic, linguistic and financial factors, immigration enforcement threat and parent health were associated with aspects of family engagement in young children's learning among Latine families in low-income communities. Implications for policy and practice are discussed.

RATIONALE & OBJECTIVE/UNASSIGNED:The prevalence of chronic kidney disease (CKD) is known to increase with age; however, creatinine may be a less reliable filtration marker in older adults. Few studies have investigated the prevalence and progression of CKD using different filtration markers for estimating glomerular filtration rate (GFR). STUDY DESIGN/UNASSIGNED:A prospective observational cohort study. SETTING & PARTICIPANTS/UNASSIGNED:6,393 White and African American participants aged 65-100 years from the Atherosclerosis Risk in Communities Study (ARIC) at Visit 5, followed longitudinally at Visits 6 and 7. EXPOSURE AND OUTCOME/UNASSIGNED:The eGFR was estimated either by creatinine (eGFRcr), cystatin C (eGFRcys), creatinine and cystatin C (eGFRcr-cys), or using creatinine, cystatin C, and β-2-microglobulin (eGFRcr-cys-b2m). CKD progression was defined as 30% decline in eGFR at follow-up visits. ANALYTICAL APPROACH/UNASSIGNED:Logistic regression models, adjusted for sex, race and study center, diabetes, blood pressure, body mass index, prevalent cardiovascular disease, and heart failure. RESULTS/UNASSIGNED:when using eGFRcys (33%) compared with eGFRcr-cys (12%) or eGFRcr-cys-b2m (18%). The proportion with 30% eGFR decline was lowest with eGFRcr and highest with eGFRcys, with greater incidence in older age groups for all markers. LIMITATIONS/UNASSIGNED:No direct measurement of GFR. Not all participants survived or attended subsequent follow-up visits. CONCLUSIONS/UNASSIGNED:The prevalence and progression of CKD increase with age, but estimates vary with the filtration marker used. The eGFRcr gave the lowest estimate of CKD at 15% for people aged 65-69 years at Visit 5 while eGFRcys gave the highest estimates of CKD at 26% for that same population.

In studies with time-to-event outcomes, multiple, inter-correlated, and time-varying covariates are commonly observed. It is of great interest to model their joint effects by allowing a flexible functional form and to delineate their relative contributions to survival risk. A class of semiparametric transformation (ST) models offers flexible specifications of the intensity function and can be a general framework to accommodate nonlinear covariate effects. In this paper, we propose a partial-linear single-index (PLSI) transformation model that reduces the dimensionality of multiple covariates into a single index and provides interpretable estimates of the covariate effects. We develop an iterative algorithm using the regression spline technique to model the nonparametric single-index function for possibly nonlinear joint effects, followed by nonparametric maximum likelihood estimation. We also propose a nonparametric testing procedure to formally examine the linearity of covariate effects. We conduct Monte Carlo simulation studies to compare the PLSI transformation model with the standard ST model and apply it to NYU Langone Health de-identified electronic health record data on COVID-19 hospitalized patients' mortality and a Veteran's Administration lung cancer trial.

In 2022, 1 in 8 people in the world were living with obesity, and lifestyle interventions that include diet, exercise, and behavioral modification have been the foundation for management of obesity. Recently, pharmacologic therapies have been developed for management of obesity, the newest of these being glucagon-like peptide 1 receptor agonists. With the development of new pharmacologic options, the American Gastroenterological Association developed a guideline in 2022 to provide evidence-based recommendations for the pharmacologic management of obesity in adults and recommended, for adults with obesity or overweight with weight-related complications who have had an inadequate response to lifestyle interventions, adding pharmacologic agents to lifestyle interventions over continuing lifestyle interventions alone. In this article, 2 experts review the available evidence to answer the following questions: How effective are lifestyle interventions for the treatment of obesity? How effective are pharmacologic interventions for the treatment of obesity? Given these options, how do you engage in a shared decision-making discussion to develop a mutually agreed-on treatment plan?

INTRODUCTION/BACKGROUND:ChatGPT has shown the ability to answer clinical questions in general medicine but may be constrained by the specialized nature of kidney transplantation. Thus, it is important to explore how ChatGPT can be used in kidney transplantation and how its knowledge compares to human respondents. METHODS:We prompted ChatGPT versions 3.5, 4, and 4 Visual (4 V) with 12 multiple-choice questions related to six kidney transplant cases from 2013 to 2015 American Society of Nephrology (ASN) fellowship program quizzes. We compared the performance of ChatGPT with US nephrology fellowship program directors, nephrology fellows, and the audience of the ASN's annual Kidney Week meeting. RESULTS:Overall, ChatGPT 4 V correctly answered 10 out of 12 questions, showing a performance level comparable to nephrology fellows (group majority correctly answered 9 of 12 questions) and training program directors (11 of 12). This surpassed ChatGPT 4 (7 of 12 correct) and 3.5 (5 of 12). All three ChatGPT versions failed to correctly answer questions where the consensus among human respondents was low. CONCLUSION/CONCLUSIONS:Each iterative version of ChatGPT performed better than the prior version, with version 4 V achieving performance on par with nephrology fellows and training program directors. While it shows promise in understanding and answering kidney transplantation questions, ChatGPT should be seen as a complementary tool to human expertise rather than a replacement.

OBJECTIVE/UNASSIGNED:The objective of this study is to determine whether a sleep and health improvement programme (SHIP) to promote healthy sleep, eating and physical activity would be feasible, acceptable and have a positive impact on lifestyle behaviours for prostate cancer survivors and caregivers. METHODS/UNASSIGNED:We recruited 50 participants for a single group 3-month pre-post pilot study. The SHIP intervention included (1) website about sleep, nutrition and physical activity (≥1 view/week), (2) two email newsletters with goal-setting exercises and resources and (3) midpoint health coach call. The primary outcome was changes in validated sleep scales; secondary outcomes included changes in diet, physical activity and concentration from baseline to 3 months. RESULTS/UNASSIGNED: = 0.07). There were no statistically significant improvements in sleep quality or physical activity, but there were improvements in healthy eating (e.g., increase in cruciferous vegetables and reduction in dairy) and in fatigue-related problems and concentration. Exit interview feedback was positive. CONCLUSIONS/UNASSIGNED:A web-based sleep and healthy lifestyle programme for patients with prostate cancer and their caregivers is feasible and acceptable. A randomized controlled trial is planned to test whether a refined SHIP improves sleep and lifestyle in patients with prostate cancer and caregivers.

Cisgender women and transgender men are less likely to be assessed for PrEP eligibility, prescribed PrEP, or retained in PrEP care. Thus, this pilot PrEP educational intervention was tailored for healthcare providers (HCPs) in obstetrics/gynecology who provide care to cisgender women and transgender men in an academically-affiliated, public hospital women's health clinic. The three-lecture educational curriculum designed for HCPs focused on PrEP eligibility and counseling, formulations and adherence, and prescription and payment assistance programs. Pre- and post-intervention surveys assessed HCP knowledge and barriers to PrEP counseling and prescription. Among n = 49 participants (mean age = 32.8 years; 85.7% cisgender women, mean years practicing = 4.2 years) pre-intervention, 8.7% had prior PrEP training and 61.2% felt very/somewhat uncomfortable prescribing PrEP. Post-intervention, knowledge of PrEP contraindications, eligibility, follow-up care, and assistance programs all increased. HCPs identified key barriers to PrEP care including lack of a dedicated PrEP navigator, culturally and linguistically appropriate patient materials on PrEP resources/costs, and PrEP-related content integrated into EHRs. Ongoing PrEP educational sessions can provide opportunities to practice PrEP counseling, including information on financial assistance. At the institutional level, incorporating PrEP screening in routine clinical practice via EMR prompts, facilitating PrEP medication monitoring, and enhancing telehealth for follow-up care could enhance PrEP prescription.

BACKGROUND AND OBJECTIVES/UNASSIGNED:Exposure to repetitive head impacts (RHI) is linked to the development of chronic traumatic encephalopathy (CTE), which can only be diagnosed at post-mortem. The presence of a cavum septum pellucidum (CSP) is a common finding in post-mortem studies of confirmed CTE and in neuroimaging studies of individuals exposed to RHI. This study examines CSP in living former American football players, investigating its association with RHI exposure, traumatic encephalopathy syndrome (TES) diagnosis, and provisional levels of certainty for CTE pathology. METHODS/UNASSIGNED:Data from the DIAGNOSE CTE Research Project were used to compare the presence and ratio of CSP in former American football players (n = 175), consisting of former college (n = 58) and former professional players (n = 117), and asymptomatic unexposed controls without RHI exposure (n = 55). We further evaluated potential associations between CSP measures and cumulative head impact index (CHII) measures (frequency, linear acceleration, and rotational force), a TES diagnosis (yes/no), and a provisional level of certainty for CTE pathology (suggestive, possible, and probable). RESULTS/UNASSIGNED:Former American football players exhibited a higher CSP presence and ratio than unexposed asymptomatic controls. Among player subgroups, professional players showed a greater CSP ratio than former college players and unexposed asymptomatic controls. Among all football players, CHII rotational forces correlated with an increased CSP ratio. No significant associations were found between CSP measures and diagnosis of TES or provisional levels of certainty for CTE pathology. DISCUSSION/UNASSIGNED:This study confirms previous findings, highlighting a greater prevalence of CSP and a greater CSP ratio in former American football players compared with unexposed asymptomatic controls. In addition, former professional players showed a greater CSP ratio than college players. Moreover, the relationship between estimates of CHII rotational forces and CSP measures suggests that cumulative frequency and strength of rotational forces experienced in football are associated with CSP. However, CSP does not directly correlate with TES diagnosis or provisional levels of certainty for CTE, indicating that it may be a consequence of RHI associated with rotational forces. Further research, especially longitudinal studies, is needed for confirmation and to explore changes over time.