Access To Kidney Transplantation Research Articles

#165 Substantial variation in the evaluation of kidney transplant recipient candidates prior to waitlisting: a worldwide scoping review

Abstract Background and Aims Before patients with end stage kidney disease can undergo kidney transplantation, their suitability is assessed through a transplantation work-up. Several international guidelines have outlined the most important factors in determining patient suitability for kidney transplantation, but there is little agreement among them and it is unclear whether their recommendations have been adopted into clinical practice. Variation in the evaluation of kidney transplant recipient candidates could contribute to inefficiency and inequality in accessing the transplant waiting list and kidney transplantation. Therefore, the standardization of pre-waitlisting practice patterns is desirable and in line with recommendations from Europe [1] and the US [2]. An overview of publications on pre-waitlisting practices for kidney transplantation is needed to increase the transparency of kidney transplant recipient candidacy evaluation and is a first step towards the standardization of pre-waitlisting procedures. To date, such an overview has not been performed. Therefore, our aim was to conduct a scoping review on the evaluation of kidney transplant recipient candidates prior to waitlisting, investigating: (a) the content of the transplantation work-up; (b) contraindications to waitlisting; and (c) the organization of the transplantation work-up. Method A systematic search was conducted in Ovid Medline and Ovid EMBASE in collaboration with a medical information specialist. Studies reporting practice patterns on the evaluation of adults receiving their first kidney graft from a deceased donor were included. Studies were excluded if they only reported: on pediatric patients; from the perspective of the patients; practice patterns following waitlisting; COVID-19-related changes to practice patterns; and results from novelty screening methods used to evaluate kidney transplant recipient candidates without evidence that these methods were also used in clinical practice. Results Results from 40 studies were summarized, of which a majority were conducted in Europe (n = 11) and the US (n = 21). The content of the transplantation work-up varied widely between studied centers. Results show that the presence of a written transplantation work-up was common in the US, UK, and Norway, while in other countries, the presence of a written transplantation work-up protocol was not reported. Common domains within the transplantation work-up included screening for infections, heart disease, peripheral artery disease, and malignancy. A wide range of contraindications to waitlisting were reported. The criteria for contraindications related to obesity and age/frailty varied between studied centers and appear to have changed over time. In general, the organization of the transplantation work-up (e.g. the referral process, the transplant care team, and the use of multidisciplinary meetings) was comparable across studied centers, but differences were observed in the way the transplantation work-up was carried out. Conclusion This is the first review summarizing practice patterns related to the evaluation of kidney transplant recipient candidates prior to waitlisting. Results showed substantial variation in the evaluation of kidney transplant recipient candidates and pre-waitlisting practice patterns globally. These findings contribute to increasing the transparency of pre-waitlisting practice patterns, as was endorse by EU and US recommendations. In turn, this may aid in standardizing criteria used to evaluate kidney transplant recipient candidates prior to waitlisting, which could improve kidney transplantation access and outcomes.

Utilization of Hepatitis B viremic donors (NAT+) leads to improved kidney transplant access for older adult recipients with little to no wait time.

Though the use of Hepatitis B viremic (HBV) donor kidneys may be a safe alternative to improve access to transplantation, there has not been wide acceptance of this practice. In this study, we determined the safety and effectiveness of HBV NAT (+) donor kidneys in a protocolized manner in an older adult population. Over a 3-year period, 16 decreased donor kidney transplants were performed with HBV NAT+ kidneys. Recipients of HBV NAT+ kidneys were treated with entecavir started pre-operatively and continued for 52 weeks. HBV NAT+ kidneys were preferentially used in older (68 ± 5vs. 64 ± 9 years; p=.01) recipients with less dialysis time (93.8% < 5 years vs. 67% <5 years; p=.03). In this cohort, 3/16 had detectable HBV PCR 1-week post-transplant, but all were negative at 9- and 12-months. Calculated estimated glomerular filtration rate (eGFR) was slightly decreased 12-months post-transplant. Post-transplant outcomes in an age-matched cohort showed no difference in rates of delayed graft function, readmission within 30 days, and graft loss or death within 6 months of transplant (p>.05). Transplants with HBV NAT+ donor kidneys in a pre-emptive treatment protocol allow for increased safe access to transplantation in older adult recipients with little or no dialysis time.

Evaluating site-of-care-related racial disparities in kidney graft failure using a novel federated learning framework.

Racial disparities in kidney transplant access and posttransplant outcomes exist between non-Hispanic Black (NHB) and non-Hispanic White (NHW) patients in the United States, with the site of care being a key contributor. Using multi-site data to examine the effect of site of care on racial disparities, the key challenge is the dilemma in sharing patient-level data due to regulations for protecting patients' privacy. We developed a federated learning framework, named dGEM-disparity (decentralized algorithm for Generalized linear mixed Effect Model for disparity quantification). Consisting of 2 modules, dGEM-disparity first provides accurately estimated common effects and calibrated hospital-specific effects by requiring only aggregated data from each center and then adopts a counterfactual modeling approach to assess whether the graft failure rates differ if NHB patients had been admitted at transplant centers in the same distribution as NHW patients were admitted. Utilizing United States Renal Data System data from 39043 adult patients across 73 transplant centers over 10 years, we found that if NHB patients had followed the distribution of NHW patients in admissions, there would be 38 fewer deaths or graft failures per 10000 NHB patients (95% CI, 35-40) within 1year of receiving a kidney transplant on average. The proposed framework facilitates efficient collaborations in clinical research networks. Additionally, the framework, by using counterfactual modeling to calculate the event rate, allows us to investigate contributions to racial disparities that may occur at the level of site of care. Our framework is broadly applicable to other decentralized datasets and disparities research related to differential access to care. Ultimately, our proposed framework will advance equity in human health by identifying and addressing hospital-level racial disparities.

The association of socioeconomic status on kidney transplant access and outcomes: a nationwide cohort study in Taiwan.

Conflicting evidence exists regarding the relationship between socioeconomic status and access tooroutcomes after kidney transplantation. This study analyzed the effects of individual and neighborhood socioeconomic status on kidney transplant access and outcomes in Taiwan. We used a retrospective cohort study design and performed comparisons using the Cox proportional hazards model after adjusting for risk factors. Data were collected from the National Health Insurance Bureau of Taiwan data (2003-2012). Patients with high individual and neighborhood socioeconomic status had higher chances of receiving kidney transplants than those with low individual and neighborhood socioeconomic status [adjusted hazard ratio (aHR) = 2.04; 95% CI: (1.81-2.31), p < 0.001]. However, there were no significant differences in post-transplant graft failure or patient mortality in Taiwan between individuals of varying socioeconomic status after five years. When we stratified kidney transplants by domestic and overseas transplantation, there were no significant differences in post-transplant mortality and graft failure, but individualswho received a kidney graft in Taiwanwith high individual and neighborhood socioeconomic status experienced lower risks of graft failure (aHR = 0.55; [95% CI 0.33-0.89], p = 0.017). A relevant disparity exists in accessing kidney transplantation in Taiwan, depending on individual and neighborhood socioeconomic status. However, resultspost transplantation were not different after five years. Improved access to waitlisting, education, and welfare support may reduce disparities.

Lower access to kidney transplantation for women in France is not explained by comorbidities and social deprivation.

Access to kidney transplantation (KT) remains challenging for patients with end-stage kidney disease. This study assessed women's access to KT in France by considering comorbidities and neighborhood social deprivation. All incident 18-85-year-old patients starting dialysis in France between January 1, 2017 and December 31, 2019 were included. Three outcomes were assessed: (i) access to the KT waiting list after dialysis start, (ii) KT access after waitlisting, and (iii) KT access after dialysis start. Cox and Fine and Gray models were used. Gender-EDI and gender-age interactions were tested and analyses were performed among strata if required. 29,395 patients were included (35% of women). After adjusting for social deprivation and comorbidities, women were less likely to be waitlisted at 1 (adjHR: 0.91 [0.87-0.96]) and 3 years (adjHR: 0.87 [0.84-0.91]) post-dialysis initiation. This disparity concerned mainly ≥60-year-old women (adjHR: 0.76 [0.71-0.82] at 1 year and 0.75 [0.71-0.81] at 3 years). Access to KT, after 2 years of waitlisting was similar between genders. Access to KT was similar between genders at 3 years after dialysis start, but decreased for women after 4 years (adjHR: 0.93 [0.88-0.99]) and longer follow-up (adjHR: 0.90 [0.85-0.96]). In France, women are less likely to be waitlisted and undergo kidney transplantation. This is driven by the ≥60-year-old group and is not explained by comorbidities or social deprivation level.

Progress made toward equitable transplantation in children and young adults with kidney disease.

Racial disparities in pediatric kidney transplantation have been well described over the last two decades and include disparities in preemptive transplantation, waitlisting, time from activation to transplantation, living donation, and graft outcomes. Changes to the organ allocation system including the institution of Share 35 in 2005 and the Kidney Allocation System (KAS) of 2014 have resulted in resolution of some, but not all racial-ethnic disparities. Despite overall improvements in time from waitlist activation to transplant, disparities remain in preemptive transplantation, time to waitlisting, and living donor transplantation. Although improving under the KAS, racial disparities remain in graft survival as well. Racial disparity in kidney transplant access and graft survival is an international problem within pediatric nephrology. Although the racial group affected may differ, various minoritized pediatric groups across the world are affected by transplant disparities. Social determinants of health including financial access, language barriers, and the presence of a healthy living donor play a role in mediating these disparities. Further investigation is needed to better understand and intervene upon modifiable social, biological, and cultural factors driving the remaining disparity in transplant outcomes.

Intersectional race and gender disparities in kidney transplant access in the United States: a scoping review

BackgroundGender and racial disparities in kidney transplant access are well established, however how gender and race interact to shape access to kidney transplant is less clear. Therefore, we examined existing literature to assess what is known about the potential interaction of gender and race and the impact on access to kidney transplantation in the US.MethodsFollowing PRISMA guidelines, we conducted a scoping review and included quantitative and qualitative studies published in English between 1990 and May 31, 2023 among adult end-stage kidney disease patients in the US. All studies reported on access to specific transplant steps or perceived barriers to transplant access in gender and race subgroups, and the intersection between the two. We narratively synthesized findings across studies.ResultsFourteen studies met inclusion criteria and included outcomes of referral (n = 4, 29%), evaluation (n = 2, 14%), waitlisting (n = 4, 29%), transplantation (n = 5, 36%), provider perceptions of patient transplant candidacy (n = 3, 21%), and patient preferences and requests for a living donor (n = 5, 36%). Overall, we found that White men have the greatest access at all steps of the transplant process, from referral to eventual living or deceased donor transplantation. In contrast, women from racial or ethnic minorities tend to have the lowest access to kidney transplant, in particular living donor transplant, though this was not consistent across all studies.ConclusionsExamining how racism and sexism interact to shape kidney transplant access should be investigated in future research, in order to ultimately shape policies and interventions to improve equity.

Preliminary Evaluation of 2 Patient-Centered Educational Animations About Kidney Transplant Complications.

BACKGROUND Fear of kidney transplant complications and incomplete information can lower transplant acceptance and preparedness. Our group developed 2 patient-centered educational animated videos on common kidney transplant complications to complement a previously developed video-based curriculum intended to promote kidney transplant access. MATERIAL AND METHODS We preliminarily evaluated the 2 animated educational videos at a single center using mixed methods. We conducted a before-and-after single group study with 22 patients after kidney transplantation to measure the videos' acceptability and feasibility to improve patient knowledge, understanding, and concerns of kidney transplant complications. Concurrently, we individually interviewed 12 patients before kidney transplantation about their perceptions of the 2 videos and analyzed the data thematically. RESULTS Knowledge of kidney transplant complications increased 10% (7.82 to 8.59, P=0.002) from before to after video viewing. Large effect size increases for knowledge were found for different strata of age, race, and health literacy. The mean total score for perceived understanding of kidney transplant complications increased after video exposure by 7% (mean 2.48 to 2.66, P=0.184). There was no change in kidney transplant concern scores from before to after video viewing (mean 1.70 to 1.70, P=1.00). After video viewing, all patients reported positive ratings on comfort watching, understanding, and engaging. Three themes of patient perceptions emerged: (1) messages received as intended, (2) felt informed, and (3) scared but not deterred. CONCLUSIONS Two animated educational videos about kidney transplant complications were well received and promise to positively impact individuals' knowledge and understanding, without raising excessive concerns.

Recentering Accountability for Disparities in Kidney Transplant Access.

Recentering Accountability for Disparities in Kidney Transplant Access.

COVID-19 and Access to Kidney Transplantation for Older Candidates in the United States: A National Registry Study

Rationale & ObjectiveCOVID-19 has likely impacted accessibility to transplantation services among older adults (age ≥65). We quantified the impact of COVID-19 on kidney transplantation access for older kidney-only candidates registered on the US kidney waitlist. Study DesignRetrospective analysis of registry data Setting & Participants57,222 older adults who were part of or added to the US kidney waitlist between 1/1/2016-2/28/2022, identified using the Scientific Registry of Transplant Recipients (SRTR). ExposuresFour COVID-19 waves and one non-wave period based on the national incidence of COVID-19 in the United States (Initial: 3/15/20-5/31/20; winter 2020-21: 12/1/20-1/31/21; delta: 8/1/21-9/30; omicron: 12/1/21-2/28/22; non-wave: inter-wave periods) OutcomesWaitlist registrations, deceased-donor kidney transplants, living-donor kidney transplants, waitlist mortality, and waitlist removals due to deteriorating condition (hereafter referred to as removals) Analytical ApproachPoisson regression for the adjusted incidence rate ratio (aIRR) of each outcome during the COVID-19 waves and the non-wave period relative to reference [1/1/16-12/31/19], adjusted for seasonality and secular trends. ResultsWaitlist registrations initially declined, and increased henceforth. Deceased donor kidney transplants and living donor kidney transplants remained below expected during all waves. Waitlist mortality peaked during the winter 2020-21 wave (aIRR: 1.701.982.30) and has declined since; mortality rates were 139%, 107%, and 251% above expected for Black candidates, men, and candidates aged ≥75 years, respectively, during the winter 2020-21 wave. Removals increased from 22% below expected (initial wave) to 26% above expected (omicron wave); removals were non-significantly higher than expected during the omicron wave for older Black and Hispanic candidates. LimitationsThe findings are not generalizable to those listed at earlier ages with prolonged waitlist times. Additionally, using national COVID-19 incidence doesn’t consider local policy and healthcare variations. Lastly, aIRRs must be interpreted cautiously due to smaller daily event counts. ConclusionsCOVID-19 was associated with fewer transplants, and increased mortality and removals in older kidney transplant candidates. Transplant providers should consider this impact and implement policies and practices to ensure the continuity of care.

Illinois Transplant Fund Experience: Is It a Pathway to Increased Transplant Access for Hispanic Patients With Kidney Failure?

The Illinois Transplant Fund, established in 2015, provides private health insurance premium support for noncitizen patients with kidney failure in Illinois and thus allows them to qualify for kidney transplants. Our objective was to describe trends in kidney transplant volumes over time to inform the development of a hypothesis regarding the impact of the Illinois Transplant Fund on kidney transplant volumes for adult Hispanic patients with kidney failure in Illinois, especially noncitizen patients. Retrospective study. We used data on the annual number of kidney transplants and kidney failure prevalence aggregated to the national and state levels from the Organ Procurement and Transplantation Network and United States Renal Data System, respectively. The annual number of transplants as a percentage of prevalent kidney failure cases among adults over time from 2010 to 2020 by race/ethnicity for all payer and private insurance-paid transplants and the annual number of transplants by citizenship status (for Hispanic patients only) were examined for the United States (US), Illinois, and 6 selected US states. Descriptive study. From pre- to post-Illinois Transplant Fund, the average annual number of transplants as a percentage of the average annual prevalent kidney failure cases for Hispanic adults increased by 4% in Illinois while the same figure increased by 33% for privately insured transplants. The observations reported in this paper cannot be interpreted as evidence for the program's impact. Observed trends suggest plausibility of developing a hypothesis that Illinois Transplant Fund's introduction may have contributed to improvement in kidney transplantation access for Hispanic patients in Illinois, especially noncitizens, but cannot constitute evidence in support of or against this hypothesis. Future research should test whether the Illinois Transplant Fund improved access to kidney transplants for noncitizens with kidney failure. Health policies regarding kidney transplant access for undocumented residents vary widely by state. The Illinois Transplant Fund (ITF) provides financial support for health insurance premiums, so undocumented patients with kidney failure in Illinois can qualify for a kidney transplant. In this study, we reported kidney transplant trends in Illinois before and after the creation of the ITF along with kidney transplant trends in the US overall and selected states that share similarities to Illinois.

Multimodal approaches for inequality in kidney care: turning social determinants of health into opportunities.

Kidney disease is associated with major health and economic burdens worldwide, disproportionately carried by people in low and middle socio-demographic index quintile countries and in underprivileged communities. Social determinants such as education, income and living and working conditions strongly influence kidney health outcomes. This review synthesised recent research into multimodal interventions to promote kidney health equity that focus on the social determinants of health. Inequity in kidney healthcare commonly arises from nationality, race, sex, food insecurity, healthcare access and environmental conditions, and affects kidney health outcomes such as chronic kidney disease progression, dialysis and transplant access, morbidity and mortality. Multimodal approaches to addressing this inequity were identified, targeted to: patients, families and caregivers (nutrition, peer support, financial status, patient education and employment); healthcare teams (workforce, healthcare clinician education); health systems (data coding, technology); communities (community engagement); and health policy (clinical guidelines, policy, environment and research). The engagement of diverse patients, families, caregivers and communities in healthcare research and implementation, as well as clinical care delivery, is vital to counteracting the deleterious effects of social determinants of kidney health.

#6257 PROGNOSTIC VALUE OF A POSITIVE CROSSMATCH BEFORE DESENSITIZATION IN A COHORT OF HIGHLY-SENSITIZED PATIENTS

Abstract Background and Aims Human Leukocyte antigen (HLA) sensitization in patients is a barrier for Kidney Transplantation (KT) access, and highly-sensitized patients remain on the waiting list longer than other patients which results in a higher morbidity and mortality. Desensitization may be an option to increase their access to KT. All patients transplanted in this context have a negative Complement-Dependent Cytotoxicity crossmatch (CDC-CM) the day of KT. However, the stratification of the long-term risk of graft loss according to flow cytometry crossmatch (FC-CM) and to CDC-CM during the desensitization period remains unknown. Method In this retrospective study, all highly-sensitized patients (Panel Reactive Antigen (PRA) ≥ 85) in our center were included. CDC-CM and FC-CM were performed on samples before and during the desensitization period and clinical follow-up data were retrieved. Pre-KT desensitization strategy consisted in two Rituximab infusions (375mg/m2) and a variable number of apheresis (mostly semi-specific immunoadsorption) associated with a classical immunosuppression-based regimen (tacrolimus, mycophenolate and steroids). Results A total of 183 highly-sensitized recipients received a KT between 2014 and 2022. Of these, 23 were desensitized prior to KT and among them 18 had a positive FC-CM before KT and 5 had no positive FC-CM on all assessed serums. Mean age was 52.9 ± 13 years. Mean follow-up was 5.2±4 and 3±2 years for non-desensitized and desensitized patients respectively. PRA before desensitization was higher in desensitized patients (98%) versus non-desensitized patients (95%) and the mean time on the waiting list was 5.8±4 versus 7.5±4 years respectively. Death-censored graft survival and patient's raw survival, using cox-survival analysis, were not statistically different between the desensitized kidney transplanted patients and the highly-sensitized patients without desensitization (p = 0.77 and p = 0.57 respectively). In sub-group analyses, the positivity of FC and/or CDC-CM did not add an additional risk of graft loss or patient mortality. Conclusion Desensitization allows highly-sensitized patients to access KT with an HLA-incompatible graft (with a positive CDC or FC-CM on the serum collected prior to desensitization), with the same graft survival as similarly sensitized patients transplanted with an HLA-compatible graft without desensitization.

Kidney transplant access for children and young adults with congenital anomalies of the kidney and urinary tract

PurposeAlthough congenital anomalies of the kidney and urinary tract (CAKUT) are among the leading causes of end-stage kidney disease (ESKD) in children and young adults, kidney transplantation access for this population has not been well studied in the US. We compared transplantation access in the US based on whether the etiology of kidney disease was secondary to CAKUT, and additionally by CAKUT subgroups (anatomic vs. inherited causes of CAKUT).MethodsUsing the United States Renal Data System, we conducted a retrospective cohort study of 80,531 children and young adults who started dialysis between 1995 and 2015. We used adjusted Cox models to examine the association between etiology of kidney disease (CAKUT vs. non-CAKUT, anatomic vs. inherited) and receipt of kidney transplantation, and secondarily, receipt of a living vs. deceased donor kidney transplant.ResultsOverall, we found an increased likelihood of kidney transplantation access for participants with CAKUT compared to those without CAKUT (HR 1.23; 95% CI 1.20–1.27). Among the subset of individuals with CAKUT as the attributed cause of ESKD, we found a lower likelihood of kidney transplantation in those with anatomic causes of CAKUT compared to those with inherited causes of CAKUT (adjusted HR 0.85; 0.81–0.90).ConclusionThere are notable disparities in kidney transplantation rates among CAKUT subgroups. Those with anatomic causes of CAKUT started on dialysis have significantly reduced access to kidney transplantations compared to individuals with inherited causes of CAKUT who were initiated on dialysis. Further studies are needed to understand barriers to transplantation access in this population.

Using Community-Based Participatory Research to Create Animated Videos to Attenuate Disparities in Access to Kidney Transplant Information.

Introduction: Community-based participatory research and animated video offer promising approaches to attenuate disparities in access to kidney transplant information. Project Aims: We refined an evidence-based animated video curriculum (Kidney Transplant and Donation Information Made Easy) designed for diverse individuals, that is currently being trialed to advance kidney transplant access among referred patients at a single transplant center, to further accommodate information needs in earlier stages of the path to transplant (pre-referral) and to enhance fit for Black and Hispanic people. Design: We describe formation of an academic-community partnership and the application of qualitative research methods and partnership discussions to refine the Kidney Transplant and Donation Information Made Easy videos. A simple content analysis was undertaken of intervention refinement transcriptions, minutes, and meeting notes. Results: We formed a community steering committee and advisory board of local members predominantly of minoritized race or ethnicity. Full engagement with community members is evident in the program's adaptation process. Essential refinement elements were adaptation of 17 original videos and iterative development of 8 new videos with the community, conducting parallel cognitive interviews of an expanded sample of stakeholders, maintaining the theoretical grounding of Elaboration Theory, communication/multimedia learning best practices, and self-efficacy framework, and doing Spanish-language translation. Conclusions: Applying community-based participatory research principles and qualitative methods, we produced a culturally grounded adaptation of the Kidney Transplant and Donation Information Made Easy videos that provides information about kidney transplantation from primary care to transplantation. This approach is likely to strengthen our community partnership and eventual community acceptance of the intervention during the implementation phase. Challenges were achieving consensus and adding Spanish-language translation.

Trends, Social Context, and Transplant Implications of Obesity Among Incident Dialysis Patients in the United States.

Kidney transplant programs have variable thresholds to accept obese candidates. This study aimed to examine trends and the social context of obesity among United States dialysis patients and implications for kidney transplant access. We performed a retrospective cohort study of 1 084 816 adults who initiated dialysis between January 2007 and December 2016 using the United States Renal Data System data. We estimated national body mass index (BMI) trends and 1-y cumulative incidence of waitlisting and death without waitlisting by BMI category (<18.5 kg/m 2 , ≥18.5 and <25 kg/m 2 [normal weight], ≥25 and <30 kg/m 2 [overweight], ≥30 and <35 kg/m 2 [class 1 obesity], ≥35 and <40 kg/m 2 [class 2 obesity], and ≥40 kg/m 2 [class 3 obesity]). We then used Fine-Gray subdistribution hazard regression models to examine associations between BMI category and 1-y waitlisting with death as a competing risk and tested for effect modification by End Stage Renal Disease (ESRD) network, patient characteristics, and neighborhood social deprivation index. The median age was 65 (interquartile range 54-75) y, 43% were female, and 27% were non-Hispanic Black. From 2007 to 2016, the adjusted prevalence of class 1 obesity or higher increased from 31.9% to 38.2%. Class 2 and 3 obesity but not class 1 obesity were associated with lower waitlisting rates relative to normal BMI, especially for younger individuals, women, those of Asian race, or those living in less disadvantaged neighborhoods ( pinteraction < 0.001 for all). Obesity prevalence is rising among US incident dialysis patients. Relative to normal BMI, waitlisting rates with class 2 and 3 obesity were lower and varied substantially by region, patient characteristics, and socioeconomic context.

Racial Disparities in Pediatric Kidney Transplantation under the New Kidney Allocation System in the United States.

In December 2014, the Kidney Allocation System (KAS) was implemented to improve equity in access to transplantation, but preliminary studies in children show mixed results. Thus, we aimed to assess how the 2014 KAS policy change affected racial and ethnic disparities in pediatric kidney transplantation access and related outcomes. We performed a retrospective cohort study of children <18 years of age active on the kidney transplant list from 2008 to 2019 using the Scientific Registry of Transplant Recipients. Log-logistic accelerated failure time models were used to determine the time from first activation on the transplant list and the time on dialysis to deceased donor transplant, each with KAS era or race and ethnicity as the exposure of interest. We used logistic regression to assess odds of delayed graft function. Log-rank tests assessed time to graft loss within racial and ethnic groups across KAS eras. All children experienced longer wait times from activation to transplantation post-KAS. In univariable analysis, Black and Hispanic children and other children of color experienced longer times from activation to transplant compared with White children in both eras; this finding was largely attenuated after multivariable analysis (time ratio, 1.16; 95% confidence interval, 1.01 to 1.32; time ratio, 1.13; 95% confidence interval, 1.00 to 1.28; and time ratio, 1.17; 95% confidence interval, 0.96 to 1.41 post-KAS, respectively). Multivariable analysis also showed that racial and ethnic disparities in time from dialysis initiation to transplantation in the pre-KAS era were mitigated in the post-KAS era. There were no disparities in odds of delayed graft function. Black and Hispanic children experienced longer times with a functioning graft in the post-KAS era. No racial and ethnic disparities from activation to deceased donor transplantation were seen before or after implementation of the KAS in multivariable analysis, whereas time on dialysis to transplantation and odds of short-term graft loss improved in equity after the implementation of the KAS, without compromising disparities in delayed graft function. This article contains a podcast at https://www.asn-online.org/media/podcast/CJASN/2021_12_07_CJN06740521.mp3.

Removal of the Black race coefficient from the estimated glomerular filtration equation improves transplant eligibility for Black patients at a single center.

Race is a social construct that cannot be measured, can be used imprecisely and may contribute to disparities in kidney transplant access for Black patients. At Beth Israel Deaconess Medical Center, we dropped the Black race coefficient in the estimated glomerular filtration rate (eGFR) report in 2017. We conducted a quality improvement project to examine the impact of this change. Before the change, only 26% of our Black patients were listed for preemptive transplant compared to 70% of White patients. Since the change, we found a steady increase in the percentage of Black patients listed before starting dialysis. The average eGFR at listing prior to 2017 was significantly lower in Black patients but after, there was no longer a significant difference. Nine patients "gained" an average of 457 days of wait time directly related to discarding the Black race coefficient. Increased time on the list prior to dialysis initiation allows for evaluation of potential live donors and improves the possibility of a pre-emptive live or deceased donor transplant and allows for a shorter period on dialysis before transplant. In this single center initiative, we demonstrate the benefit of discarding race from the eGFR report for Black patients awaiting kidney transplantation.

CKD Progression From the Time of Estimated GFR-Based Waitlist Eligibility and Racial Disparities in Transplant Access

Equations for estimated glomerular filtration rate (eGFR) that incorporate a term for race assign a higher value to Black individuals compared to non-Black individuals for the same sex, age, and serum creatinine concentration. This difference may contribute to racial disparities in kidney transplant access. We sought to (1) compare time from meeting a transplant eligibility threshold of eGFR≤20 mL/min/1.73 m2 to kidney failure with replacement therapy (KFRT) among Black, Hispanic, and White patients, and (2) assess the impact of incorporation of race into eGFR expressions on establishment of waitlist eligibility and time from eligibility to KFRT. Retrospective cohort. Using the OptumLabs Data Warehouse, we assembled a cohort of 40,042 White, 8,519 Black, and 3,569 Hispanic patients having at least one eGFR value between 20 and 60 mL/min/1.73 m2 within the preceding 2 years and an incident outpatient eGFR of≤20 mL/min/1.73 m2 between 2008-2018, using the CKD-EPI creatinine equation that includes a term for race coded as Black or non-Black. We then reassembled a Black patient cohort based on incident eGFR≤20 mL/min/1.73 m2 (n= 11,269) estimated using the same CKD-EPI equation but coding Black patients as non-Black. Race/ethnicity. Time to KFRT. Unadjusted and adjusted Fine-Gray models; linear regression to compute eGFR slopes. By 3 years, the cumulative incidence of KFRT was 20.5% among White patients, 40.9% among Hispanic patients, 36% among Black patients whose GFR was estimated using a race term coded as Black, and 28.7% among Black patients whose GFR was estimated using a race term coded as non-Black. In fully adjusted analyses including 11,269 Black patients with an eGFR≤20 mL/min/1.73 m2 based on coding them as non-Black, KFRT risk remained greater among Black (HR, 1.28 [95% CI, 1.15-1.43]) and Hispanic (HR, 1.66 [95% CI, 1.18-2.31]) patients than among White patients. Based on slopes of eGFR decline, coding Black patients as non-Black would allow earlier waitlist activation by an estimated median of 0.5 [interquartile range, 0.27-1.23] years. Inability to exclude individuals who would not be kidney transplant candidates if comprehensively evaluated. A uniform eGFR threshold provides less opportunity for being placed on the transplant waitlist among Black and Hispanic patients. For many Black patients, estimation of GFR as if their race category were non-Black would allow substantially earlier waitlisting but would not eliminate their shorter time to KFRT and reduced opportunity for preemptive transplantation compared with White patients.

MP37-05 DISPARITIES IN ACCESS TO KIDNEY TRANSPLANTATION: ARE AMERICAN TRANSPLANT CENTERS WILLING TO TRANSPLANT INMATES?

You have accessJournal of UrologyRenal Transplantation & Vascular Surgery I (MP37)1 Sep 2021MP37-05 DISPARITIES IN ACCESS TO KIDNEY TRANSPLANTATION: ARE AMERICAN TRANSPLANT CENTERS WILLING TO TRANSPLANT INMATES? Lauren Faber, Madeleine Palmer, Michael Davis, and Tania Lyons Lauren FaberLauren Faber More articles by this author , Madeleine PalmerMadeleine Palmer More articles by this author , Michael DavisMichael Davis More articles by this author , and Tania LyonsTania Lyons More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000002046.05AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: The United Network for Organ Sharing (UNOS) is tasked with ensuring fair and equitable access to organs for patients seeking transplant. Despite UNOS’ position statement clearly stating that prisoner status should not preclude transplant evaluation, inmates continue to face significant barriers in this arena. The goal of this survey was to discover how many American transplant centers are willing to evaluate, list, and transplant incarcerated individuals. METHODS: All active, adult kidney transplant centers listed on the UNOS website were eligible for inclusion (194). Centers were called up to 3 times for survey. RESULTS: 122 centers responded. 49 were willing to evaluate incarcerated individuals (34 public, 15 private), 43 willing to list (30 public, 13 private), and 42 willing to transplant (30 public, 12 private). 14 centers said yes, but on a case-by-case basis only. Reported considerations were type of crime, length of sentence, and likelihood of release. Frequently cited reasons for not treating inmates were: inadequate follow-up (28), insurance/funding (16), transportation (12), medication compliance (9), security (8), patient safety (8), and lack of social support (5). 24 centers refused to disclose their policy or did not have one. Two centers claimed incarceration was a contraindication to kidney transplantation. CONCLUSIONS: As prevalence of ESRD increases in the incarcerated population, barriers to transplant for inmates need to be addressed. A lack of understanding of the contraindications to transplant or a lack of knowledge about the prisoner system on behalf of transplant centers may contribute to these barriers. However, there is likely a component of implicit bias and ethical dilemma. We feel as transplant professionals it is our responsibility to assist vulnerable patients in overcoming barriers to transplantation and work to ensure equitable access to organs, regardless of incarceration status. Source of Funding: None © 2021 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 206Issue Supplement 3September 2021Page: e646-e647 Advertisement Copyright & Permissions© 2021 by American Urological Association Education and Research, Inc.MetricsAuthor Information Lauren Faber More articles by this author Madeleine Palmer More articles by this author Michael Davis More articles by this author Tania Lyons More articles by this author Expand All Advertisement Loading ...