Factors Associated with Opting Out of an Unrelated Hematopoietic Stem Cell Donor Registry: Differences and Similarities across Five Key Groups of Young Race/Ethnically Diverse Potential Donors in the United States.

Young adults from underserved racial/ethnic groups are critically needed as unrelated hematopoietic stem cell (HSC) donors, yet they are more likely than other groups to opt out of donation after having matched a patient. Understanding which factors are most strongly associated with opting out among young underserved racial/ ethnic registered donors compared with their White counterparts will provide the basis for specific interventions to improve donor retention. We sought to determine the key, modifiable psychosocial, registry-related, and donation-related characteristics that are uniquely associated with opting out across 5 key racial/ethnic groups of young HSC donor registry members who had been contacted as a potential match for a patient. This study examines data from a large cross-sectional survey of young (age 18 to 30) registry members shortly after they preliminarily matched a patient (CT-stage) and continued toward or opted out of donation (CT-C and CT-NI), stratified by racial/ethnic group and sex. We assessed psychosocial, registry-related, and donation-related characteristics for all participants. We used chi-squared and F tests to assess differences between racial/ethnic groups. A separate logistic regression analysis for each racial/ethnic group was conducted to quantify adjusted associations between each variable and opting out. Then, we compared these associations across the racial/ethnic groups by evaluating the interaction effect between each variable and racial/ethnic group, with the same outcome (CT-C versus CT-NI) in question. Nine hundred thirty-five participants were surveyed, including 284 White, 165 Hispanic, 191 Black, 192 Asian/Pacific Islander, and 103 Multiracial/multiethnic participants. There were significant differences across racial/ethnic groups in values/goals, religious objections to donation, HSC-related medical mistrust, and parental involvement in donation decisions. Adjusted logistic regression subgroup analyses indicated that ambivalence was strongly associated with opting out across all racial/ethnic groups. Greater focus on intrinsic life goals (e.g., raising a family, becoming a community leader, influencing social values) was associated with opting out in the Multiracial/multiethnic, Hispanic, and Asian/Pacific Islander groups. Healthcare mistrust and insufficient registry contact was a significant factor for Hispanic participants. Protective factors against opting out included remembering joining the registry (Black participants), and parental support for donation decision (Asian/Pacific Islander participants). The performance of each logistic regression model was strong, with area-under-the curve ≥.88, CT-stage outcome classification accuracy ≥89%, and good fit between expected and observed opt-out probabilities. In the analysis across different racial/ethnic groups, the only significant interaction was race/ethnicity by whether more contact with the registry would have changed the decision at CT-stage; this variable was significant only for the Hispanic group. In the within-group analysis for Hispanic participants, the "more registry contact" variable was strongly associated with opting out (odds ratio 5.8, P = .03). Consistent with a growing body of HSC donor research, ambivalence was a key factor associated with opting-out for all racial/ethnic groups. Other key variables were differentially associated with opting-out depending on racial/ethnic group. Our study highlights key variables that registries should focus on as they develop targeted and tailored strategies to enhance commitment and reduce attrition of potential donors.

Validity of the Modified Defense and Veterans Pain Rating Scale Supplemented With Items Germane to Total Joint Replacement: Secondary Analysis From a Randomized Trial.

INTRODUCTION: Valid measures of pain are helpful to adjust treatment plans in real time after total joint replacement (TJR). We enhanced the existing Defense and Veterans Pain Rating Scale (DVPRS) with items related to pain at rest and movement, in specific reference to operative and nonoperative joints, creating the TJR-DVPRS. This manuscript is presented to validate the modified survey instrument. The aims of this psychometric study were to evaluate (1) the latent structure of the TJR-DVPRS, (2) the relationships among the pain dimensions represented on the TJR-DVPRS and the reference-standard Short-Form McGill Pain Questionnaire (version 2, SF-MPQ-2), and (3) the responsiveness of these two measures before and after TJR. MATERIALS AND METHODS: This report involves a secondary analysis of pain surveys from 135 veterans undergoing TJR at one center who participated in a randomized trial. The study was approved by the institutional review boards from participating institutions. The TJR-DVPRS and SF-MPQ-2 were completed preoperatively, during postoperative day 1, and 6 weeks post-surgery. Standard psychometric evaluations included correlations, principal component analysis, and internal consistency of survey items and subscales, using preoperative baseline data as a frame of reference. Responsiveness analysis included assessing both effect size and thresholds of clinically important change for survey subscales using data from all three time points. RESULTS: Two reliable subscales were identified for the TJR-DVPRS, one including items about pain intensity and interference related to the operative joint (Cronbach's α = .809) and the other including two pain items on the nonoperative joint. Combining the subscales indicated a two-factor solution: The first valid factor entailed the four subscales of the SF-MPQ-2 and the TJR-DVPRS operative joint subscales, indicating that these subscales validly represent the same pain dimension. The second valid factor entailed the TJR-DVPRS subscale addressing the nonoperative joint. Responsiveness analysis following accepted psychometric methods demonstrated significant decreases in pain from the preoperative period to 6 weeks postoperatively for all subscales. The TJR-DVPRS and SF-MPQ-2 subscales were similarly responsive, except for the SF-MPQ-2 neuropathic and TJR-DVPRS nonoperative joint subscales, which were minimally responsive during the preoperative to 6-week period. CONCLUSIONS: The TJR-DVPRS is valid for use among veterans undergoing TJR and poses significantly less respondent burden than does the SF-MPQ-2. The brevity and ease of use of the TJR-DVPRS make it a practical tool for use during surgical recovery to monitor pain intensity at rest and with movement in the operative joint, and to assess pain interference with activity, sleep, and mood. The TJR-DVPRS is at least as responsive as the SF-MPQ-2, but the SF-MPQ-2 neuropathic and TJR-DVPRS nonoperative joint subscales were minimally responsive. Limitations of this study include the small sample size, under-representation of women (which would be expected in the veteran population), and using only veterans. Future validations studies should include civilians and active military TJR patients.

Assessing Common Content and Responsiveness of the QoR-15 and the SF-8 in the Context of Recovery from Regional Anesthesia for Joint Replacement.

PURPOSE: There is no consensus regarding how best to measure postoperative quality of recovery after anesthesia/surgery (e.g., using 24-hour survey instruments) in veterans or active military. Our goals were to (1) describe health-related quality-of-life (HRQoL) and recovery across time in veterans, (2) examine the commonality between the quality of recovery (QoR-15) and short-form (SF) surveys (including the SF-8, 24-hour version), and (3) examine the responsiveness of these surveys. MATERIALS AND METHODS: This study was approved by the Institutional Review Boards from the University of Pittsburgh, the VA Pittsburgh, and the Human Research Protection Office of the Department of Defense. Secondary analyses of data were executed based on a randomized trial dataset of knee/hip arthroplasty patients, the study having recruited 135 total veterans. QoR-15 and HRQoL SF surveys were completed and self-reported before surgery (pre-op), on postoperative day 2 (PO-D2), and 6 weeks postoperatively. Descriptive statistics were used to examine scores across time. Common content was examined using Pearson's r. Responsiveness was examined using distribution-based methods. RESULTS: Average veteran age was 67 year, 89% were male, 88% white, and average body mass index was 33 kg∙m-2. QoR-15 scores declined from pre-op to PO-D2 but were higher than pre-op at 6 weeks. SF physical component summary (PCS) scores were low both pre-op and PO-D2, but were elevated over baseline at 6 weeks. SF mental component summary (MCS) scores declined from baseline to PO-D2 but were higher than pre-op at 6 weeks. Associations of the QoR-15 total score and PCS/MCS were medium/large and statistically significant at P ≤ .01. Both instruments were responsive to changes. CONCLUSION: QoR-15 and SF-8 have high content commonality and performed similarly in veterans across time. SF-8 has added benefits of (1) brevity, (2) assessment of physical and mental health components, and (3) being normed to the general population. The SF-8, if used without the QoR-15 in tandem in future study of anesthesia-related outcomes, would need to be supplemented by separate questions addressing postoperative nausea/vomiting (a frequent outcome after anesthesia that is relevant to same-day and next-day mobilization after elective joint replacement surgery).

The Influence of Social Media Interactions and Behaviors on Depressive Symptoms Among Sexual and Gender Minority Young Adults in the United States: Protocol for a Mixed Methods Longitudinal Study.

BACKGROUND: Sexual and gender minority (SGM; ie, lesbian, gay, bisexual, transgender, and otherwise queer) young adults experience disparities in depression and other internalizing psychopathology. Although social media use is widespread and SGM people have more social media accounts and are more socially active on them than non-SGM individuals, few studies have examined the impact of social media on depression in this group. OBJECTIVE: The PRIDE iM study will be the first longitudinal, mixed methods research conducted to determine the impact of social media interactions and behaviors as pathways to depressive symptoms among SGM young adults living in the United States. METHODS: PRIDE iM uses a bookends variation of the longitudinal sequential mixed methods design. Participants will be recruited nationally from social media. First, between July 2019 and February 2020, we conducted a qualitative phase (T1) comprising web-based individual interviews (N=58) to inform the building and content of the quantitative survey. Second, from February 2022 to September 2022, we will conduct a series of web-based surveys (N=1000 at baseline) with 4 data points (T2-T5), each one collected every 6 to 8 weeks. Third, from October 2022 to December 2022, we will conduct a second qualitative phase (T6) of web-based interviews using outcome trajectories found in the longitudinal survey analyses to purposively sample survey participants and conduct web-based interviews to contextualize and explain survey findings. Qualitative data from T1 and T6 will be analyzed using a reflexive thematic analysis approach. As we sought to capture change over time in the association between the main predictors (ie, social media interactions and behaviors) and depressive symptoms, we propose analyzing T2 to T5 data using latent growth models with a structural equation modeling framework. Data integration at the method, interpretation, and reporting levels will be achieved through building and connecting and the use of a staged approach and joint displays, respectively. At all stages, we will assess the fit of data integration as recommended by the principles of best practice for mixed methods research in psychology. RESULTS: Data collection will be completed by December 2022. Qualitative data analyses will be completed by March 2023, and quantitative analyses of the primary outcome of interest will be completed by June 2023. CONCLUSIONS: PRIDE iM will confirm, reject, or uncover the presence of potential relationships between social media interactions and behaviors and depressive symptoms among SGM people. This study represents fundamental groundwork to develop social media-based interventions that target modifiable interactions and behaviors that are most likely to influence mental health outcomes, thus seizing the opportunity to merge the popularity of this medium among SGM people with evidence-based approaches. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/43627.

Association of ABO mismatch with the outcomes of allogeneic hematopoietic cell transplantation for acute leukemia.

Allogeneic hematopoietic cell transplantation (allo-HCT) is a potentially curative treatment for acute myeloid leukemia (AML) and acute lymphoblastic leukemia (ALL). While many factors influence the outcomes of allo-HCT, the independent impact of donor-recipient ABO mismatching remains unclear. Using the Center for International Blood and Marrow Transplant Research (CIBMTR) database, we identified patients aged ≥18 years with AML or ALL who underwent allo-HCT between 2008 and 2018. Our objectives were to analyze the outcomes of allo-HCT based on the donor-recipient ABO status (match, minor mismatch, major mismatch, bidirectional mismatch). Among 4946 eligible patients, 2741 patients (55.4%) were ABO matched, 1030 patients (20.8%) had a minor ABO mismatch, 899 patients (18.1%) had a major ABO mismatch, and 276 patients (5.6%) had a bidirectional ABO mismatch. In multivariable analyses, compared to ABO matched allo-HCT, the presence of a major ABO mismatch was associated with worse overall survival (HR 1.16, 95% CI 1.05-1.29; p = 0.005), inferior platelet engraftment (HR 0.83, 95% CI 0.77-0.90; p < 0.001), and higher primary graft failure (HR 1.60, 95% CI 1.12-2.30, p = 0.01). Relapse, acute graft versus host disease (GVHD) grades III-IV and chronic GVHD were not significantly associated with ABO status. While donor age was not significantly associated with outcomes, older recipient age was associated with worse survival and non-relapse mortality. Our study demonstrates that donor-recipient ABO status is independently associated with survival and other post-transplantation outcomes in acute leukemia. This underscores the importance of considering the ABO status in donor selection algorithms and its impact in acute leukemia.

Factors Associated with Opting Out of Donation among Registered Young Unrelated Hematopoietic Stem Cell Donors.

Young adults enrolled in hematopoietic stem cell (HSC) donation registries, including the Be The Match registry in the United States, often opt out of the registry when a potential recipient is identified. This results in a limited supply from the most desirable allogeneic source of HSCs used in transplantation to treat serious health conditions. The differences in demographic, psychosocial, registry-related, and donation-related characteristics between those who continue to donation and those who opt out may elucidate the modifiable risk factors for attrition, but these characteristics have not been extensively studied in young donors up to age 30 years. Our goal was to study demographic, psychosocial, registry-related, and donation-related characteristics in a group of young HSC donor registry members who had recently been contacted about a potential recipient, to determine the key characteristics that differ between those who continued toward donation and those who opted out and to examine the extent of these differences. We conducted a cross-sectional survey in a random sample of young (age 18 to 30 years) current and former registry members, stratified by race/ethnicity and sex. Demographic, psychosocial (eg, life goals, HSC allocation mistrust), registry-related (eg context and motive for joining the registry), and donation-related (eg, ambivalence, religious objections to donation, knowledge about donation) characteristics were assessed. Chi-square and 2-sample t tests were used to examine differences between those who continued (CT-C group) and those who opted out (CT-NI group). Hierarchical logistic regression was used to estimate adjusted covariate effects on the odds of opting out. A total of 935 participants were surveyed. Donation-related knowledge was higher in the CT-C group than in the CT-NI group. HSC allocation mistrust, religious objections, and concerns about donation were higher in the CT-NI group. After adjusting for covariates in a logistic regression model, we found that having more intrinsic life goals, having more ambivalence, and talking with registry staff only once/twice were significantly associated with opting out of the registry. Ambivalence had the strongest association with opting out. In contrast, remembering joining the registry, believing that parents would support donation, and having medical concerns were significantly associated with continuing toward donation. This effect of medical concerns on donation was discovered only after adjusting for the related but distinct ambivalence variable, with the remaining effect of medical concerns relating to engagement with the donation process and information-seeking. The model had strong discriminative ability (area under the receiver operating characteristic curve = .92) and classification accuracy (86.6%). Our data indicate that among young adult members of a national HSC donor registry, ambivalence and limited contact with registry staff were more strongly associated with opting out of donation. Medical concerns were associated with continuing toward donation. Further studies are needed to confirm a causal link between medical concerns and continuing to donation among young donors. Our study suggests that these concerns might not be directly related to attrition, whereas other factors (eg, ambivalence, low donation-related knowledge) are associated with attrition and thus should be targeted for attrition reduction strategies.

Suitability of haematopoietic cell donors: updated consensus recommendations from the WBMT standing committee on donor issues.

The contribution of related donors to the globally rising number of allogeneic haematopoietic stem cell transplantations (HSCT) remains increasingly important, particularly because of the growing use of haploidentical HSCT. Compared with the strict recommendations on the suitability for unrelated donors, criteria for related donors allow for more discretion and vary between centres. In 2015, the donor outcome committee of the Worldwide Network for Blood and Marrow Transplantation (WBMT) proposed consensus recommendations of suitability criteria for paediatric and adult related donors. This Review provides updates and additions to these recommendations from a panel of experts with global representation, including the WBMT, the European Society for Blood and Marrow Transplantation donor outcome committee, the Center for International Blood and Marrow Transplant Research donor health and safety committee, the US National Marrow Donor Program, and the World Marrow Donor Association, after review of the current literature and guidelines. Sections on the suitability of related donors who would not qualify as unrelated donors have been updated. Sections on communicable diseases, clonal haematopoiesis of indeterminate potential, paediatric aspects including psychological issues, and reporting on serious adverse events have been added. The intention of this Review is to support decision making, with the goal of minimising the medical risk to the donor and protecting the recipient from transmissible diseases.

Health-related quality of life and psychological indicators of thriving 15-19 years after heart or lung transplantation.

BACKGROUND: Survival into the second decade after cardiothoracic transplantation (CTX) is no longer uncommon. Few data exist on any health-related quality of life (HRQOL) impairments survivors face, or whether they may even experience positive psychological outcomes indicative of "thriving" (e.g., personal growth). We provide such data in a long-term survivor cohort. METHODS: Among 304 patients prospectively studied across the first 2 years post-CTX, we re-interviewed patients ≥15 years post-CTX. We (a) examined levels of HRQOL and positive psychological outcomes (posttraumatic growth related to CTX, purpose in life, life satisfaction) at follow-up, (b) evaluated change since transplant with mixed-effects models, and (c) identified psychosocial and clinical correlates of study outcomes with multivariable regression. RESULTS: Of 77 survivors, 64 (83%) were assessed (35 heart, 29 lung recipients; 15-19 years post-CTX). Physical HRQOL was poorer than the general population norm and earlier post-transplant levels (P's < .001). Mental HRQOL exceeded the norm (P < .001), with little temporal change (P = .070). Mean positive psychological outcome scores exceeded scales' midpoints at follow-up. Life satisfaction, assessed longitudinally, declined over time (P < .001) but remained similar to the norm at follow-up. Recent hospitalization and dyspnea increased patients' likelihood of poor physical HRQOL at follow-up (P's ≤ .022). Lower sense of mastery and poorer caregiver support lessened patients' likelihood of positive psychological outcomes (P's ≤ .049). Medical comorbidities and type of CTX were not associated with study outcomes at follow-up. CONCLUSIONS: Despite physical HRQOL impairment, long-term CTX survivors otherwise showed favorable outcomes. Clinical attention to correlates of HRQOL and positive psychological outcomes may help maximize survivors' well-being.

The Impact of Pre-Apheresis Health Related Quality of Life on Peripheral Blood Progenitor Cell Yield and Donor's Health and Outcome: Secondary Analysis of Patient-Reported Outcome Data from the RDSafe and BMT CTN 0201 Clinical Trials.

There is a lack of evidence about how health-related quality of life (HRQoL), including psychosocial factors, might affect donation-related experiences and clinical markers in the context of hematopoietic stem cell donation. The broader literature suggests that psychological factors, including anxiety and depression, are associated with higher levels of inflammatory burden leading to poorer postprocedural outcomes including longer hospital stays and increased pain perception. In this study, we aimed to evaluate whether predonation HRQoL markers predict toxicity profile and stem cell yield after peripheral blood stem cell (PBSC) donation in healthy donors. The study population comprised adult granulocyte colony-stimulating factor mobilized PBSC-related donors (RD) (n = 157) and unrelated donors (URD) (n = 179) enrolled in the related donor safety study (RDSafe) and Blood and Marrow Transplant Clinical Trials Network (BMT CTN) 0201 clinical trials. Pre-donation HRQoL was assessed using the Short-Form-12 (SF-12) in RDSafe and SF-8 questionnaire in BMT CTN 0201 (higher score is better). The aims of this study were to (a) determine the impact of pre-donation HRQoL on peri-collection pain and acute toxicities experienced and (b) to investigate the pre-procedural HRQoL indicators on stem cells yield. URDs were younger than RDs (median age 35 versus 63). A higher proportion of RDs were female (50% versus 40%) and obese (41% versus 35%). A higher proportion of RD PBSC donations required 2 days or more of apheresis (44% versus 21%). More RD collections were lower volume procedures (<18L, 16% versus 28%), and required a central line (28% versus 11%). RDs were more likely to report pre-donation grade 1-2 pain (27% versus 8%) and other toxicities (16% versus 6%). Among RDs, a lower pre-donation physical component summary (PCS) score was associated with significantly more grade 2-4 pain at 1 month (P = .004) and at 1-year after donation (P = .0099) in univariable analyses. In multivariable analysis, pre-donation PCS remained significantly associated with grade 2-4 pain 1 month after donation (P = .0098). More specifically, RDs with predonation PCS scores in the highest quartile were less likely to report pain compared with donors with PCS scores in the lowest quartile (odds ratio 0.1; 95% confidence interval 0.01-0.83; P = .005). There was also a trend toward higher grade 2-4 pain at 1-year post-donation among RDs with lower predonation PCS score (P = .018). Among URDs, neither PCS nor mental component summary (MCS) scores were associated with pain or toxicities at any time point after donation based on the univariable analysis. Because of low rates of postdonation grade 2-4 pain and toxicities, multivariable analysis was not performed in the URD setting. Moreover, there was no correlation between preapheresis HRQoL score (PCS or MCS) and PBSC collection yield in either the RD or URD setting. Our study demonstrates that pre-donation HRQoL scores are significantly associated with the toxicity profile after PBSC donation in the RD setting, with adult RDs with lower predonation physical HRQoL experiencing higher levels of pain at 1 month and persisting up to 12 months after a PBSC collection procedure. There were no such associations found in URD. Our findings can help clinicians identify donors at higher risk of pain with donation, and lead to personalized information and interventions for specific donors. Lack of correlation between predonation HRQoL and stem cell yield may be due to a small sample size and warrants further evaluation.

Patient-Reported Experiences after Acute Kidney Injury across Multiple Health-Related Quality-of-Life Domains.

Background: Investigations of health-related quality of life (HRQoL) in AKI have been limited in number, size, and domains assessed. We surveyed AKI survivors to describe the range of HRQoL AKI-related experiences and examined potential differences in AKI effects by sex and age at AKI episode. Methods: AKI survivors among American Association of Kidney Patients completed an anonymous online survey in September 2020. We assessed: (1) sociodemographic characteristics; (2) effects of AKI-physical, emotional, social; and (3) perceptions about interactions with health care providers using quantitative and qualitative items. Results: Respondents were 124 adult AKI survivors. Eighty-four percent reported that the AKI episode was very/extremely impactful on physical/emotional health. Fifty-seven percent reported being very/extremely concerned about AKI effects on work, and 67% were concerned about AKI effects on family. Only 52% of respondents rated medical team communication as very/extremely good. Individuals aged 22-65 years at AKI episode were more likely than younger/older counterparts to rate the AKI episode as highly impactful overall (90% versus 63% younger and 75% older individuals; P=0.04), more impactful on family (78% versus 50% and 46%; P=0.008), and more impactful on work (74% versus 38% and 10%; P<0.001). Limitations of this work include convenience sampling, retrospective data collection, and unknown AKI severity. Conclusions: These findings are a critical step forward in understanding the range of AKI experiences/consequences. Future research should incorporate more comprehensive HRQoL measures, and health care professionals should consider providing more information in their patient communication about AKI and follow-up.

Clinicians' Perceptions of Collaborative Palliative Care Delivery in Chronic Kidney Disease.

CONTEXT: Guidelines recommend palliative care for patients with chronic kidney disease (CKD), who experience a high pain and symptom burden, and receive intensive treatments that often do not align with their values. A lack of scalable specialty palliative care services has prompted calls for attention to primary palliative care, delivered in primary care and nephrology settings. OBJECTIVES: The objectives of this study were to 1) describe expectations for care to meet the palliative care needs of people living with CKD, and limitations to meeting those expectations in the current model, and 2) identify potential interventions to meet patients' palliative care needs. METHODS: We conducted semi-structured interviews with clinicians from primary care, nephrology, and palliative care to assess 1) reasonable expectations for meeting palliative needs, 2) barriers to integrating primary palliative care, and 3) potential intervention points. RESULTS: Clinicians discussed their expectations for high-quality communication (e.g., discussing disease understanding, assessing goals of care) and better integration of palliative care services. Clinicians expressed barriers to delivering that care, including poor inter-clinician communication. To address barriers, clinicians outlined potential intervention points, such as building collaborative models of care, and structural triggers to identify patients who may be appropriate for palliative care. CONCLUSION: Interventions to address gaps in palliative care delivery for people living with CKD should incorporate systematic identification of patients with palliative care needs and structural mechanisms to meeting those needs via specialty and primary palliative care.

Racial and Ethnic Differences in Attitudes, Perceptions, and Knowledge about Unrelated Hematopoietic Stem Cell Donation: A Study of Younger Newly Recruited Potential Donors.

Attrition of young adult registry members is a significant issue impacting hematopoietic stem cell (HSC) donation registries, including the Be The Match registry in the US. The resulting limited supply of allogeneic HSCs, used to treat serious health conditions, has a stronger impact on racial/ethnic minority groups in the US. Compared with young white adults, young adults identifying with these minority groups are more likely to drop out of the donor registry when called to donate. However, the underlying psychosocial factors that differ between white and nonwhite registrants have not been fully investigated. The central goal of this study was to examine demographic, registry-related, and donation-related characteristics in a young, newly registered group of potential donors and to determine whether these characteristics differed by, or were distributed differently among, racial/ethnic groups. We conducted a cross-sectional survey in a random sample of young (age 18 to 30 years) newly registered members, stratified by racial/ethnic group and sex. Demographic, registry-related (eg, context and motive for joining the registry), and donation-related (eg, ambivalence, religious objections to donation, knowledge about donation) characteristics were assessed. The chi-square test and analysis of variance were used to examine differences among racial/ethnic groups. Discriminant function analysis was used to assess whether patterns of the 3 classes of characteristics were associated with membership in particular racial/ethnic groups. A total of 524 participants were surveyed. Joining online was most common among white individuals, whereas joining at college was most common among black and Hispanic individuals. Ambivalence toward donation was higher among Asian/Pacific Islanders compared with white or multiracial/multiethnic individuals. Discriminant function analysis revealed 4 psychosocial/attitudinal functions predicting membership in certain racial/ethnic groups. The function accounting for the most variance in responses included mistrust of HSC allocation, religious objections to donation, low parental support, and low knowledge level. This function discriminated significantly between the white and nonwhite groups. Another function also identified ambivalence as a discriminating factor, which was most strongly associated with Asian/Pacific Islanders. Among young adult members of an HSC donor registry, such factors as ambivalence, family concerns about donation, mistrust of HSC allocation, religious objections, and less knowledge about donation were more strongly associated with membership in the nonwhite groups compared with the white group. These factors are known to be associated with a higher risk of opting out after having been preliminarily matched with a patient. The finding that these characteristics are associated with racial/ethnic minority group membership provides targets for recruitment strategies aimed at improving retention of young registry members.

The Combined Roles of Race/Ethnicity and Substance Use in Predicting Likelihood of Kidney Transplantation.

BACKGROUND: Racial/ethnic minorities face known disparities in likelihood of kidney transplantation. These disparities may be exacerbated when coupled with ongoing substance use, a factor also reducing likelihood of transplantation. We examined whether race/ethnicity in combination with ongoing substance use predicted incidence of transplantation. METHODS: Patients were enrolled between March 2010 and October 2012 at the time of transplant evaluation. Substance use data were retrieved from transplant evaluations. Following descriptive analyses, the primary multivariable analyses evaluated whether, relative to the referent group (White patients with no substance use), racial/ethnic minority patients using any substances at the time of evaluation were less likely to receive transplants by the end of study follow-up (August 2020). RESULTS: Among 1152 patients, 69% were non-Hispanic White, 23% non-Hispanic Black, and 8% Other racial/ethnic minorities. White, Black, and Other patients differed in percentages of current tobacco smoking (15%, 26%, and 18%, respectively; P = 0.002) and illicit substance use (3%, 8%, and 9%; P < 0.001) but not heavy alcohol consumption (2%, 4%, and 1%; P = 0.346). Black and Other minority patients using substances were each less likely to receive transplants than the referent group (hazard ratios ≤0.45, P ≤ 0.021). Neither White patients using substances nor racial/ethnic minority nonusers differed from the referent group in transplant rates. Additional analyses indicated that these effects reflected differences in waitlisting rates; once waitlisted, study groups did not differ in transplant rates. CONCLUSIONS: The combination of minority race/ethnicity and substance use may lead to unique disparities in likelihood of transplantation. To facilitate equity, strategies should be considered to remove any barriers to referral for and receipt of substance use care in racial/ethnic minorities.

Gender Equitable Attitudes Among Adolescents: A Validation Study and Associations with Sexual Health Behaviors.

Gender inequitable attitudes are associated with violence perpetration and poor sexual health. There is limited diversity in U.S. samples used to validate gender attitudes measurements. This study assessed a 13-item gender equitable attitudes scale's validity among a sample of predominantly Black adolescent boys (n = 866; mean age = 15.5, range = 13-19 years) and examined associations with sexual health behaviors. Exploratory and confirmatory factor analyses tested construct validity. Logistic mixed-effects models were used to explore associations between gender equitable attitudes, adolescent relationship abuse, pornography use, and condom use behaviors; linear mixed-effects models explored associations between gender equitable attitudes and condom negotiation self-efficacy. By pooling data from two other gender transformative programs, Sisterhood 2.0 (n = 246, 13-19-year-old females (mean age = 15.2), 73.6% Black/African American) and Coaching Boys into Men Middle School (n = 958, 11-14-year-old males-6th grade: 10.4%, 7th grade: 36.5%, 8th grade: 53.1-56.6% white), measurement invariance was assessed across Black (n = 400) and white (n = 298) race and male (n = 429) and female (n = 246) gender. A three-factor 11-item scale showed construct validity among a sample of Black adolescent boys, weak factorial invariance across Black and white race, and configural invariance across male and female gender. Gender equitable attitudes were associated with less adolescent relationship abuse, higher condom negotiation self-efficacy, and less pornography use. These findings demonstrate some variability in measurements of gender equitable attitudes by race and gender. Targeting harmful gender norms may help prevent adolescent relationship abuse and improve sexual health behaviors.

Healthcare providers' perceived support from their organization is associated with lower burnout and anxiety amid the COVID-19 pandemic.

BACKGROUND: Professional burnout represents a significant threat to the American healthcare system. Organizational and individual factors may increase healthcare providers' susceptibility or resistance to burnout. We hypothesized that during the COVID-19 pandemic, 1) higher levels of perceived organizational support (POS) are associated with lower risk for burnout and anxiety, and 2) anxiety mediates the association between POS and burnout. METHODS: In this longitudinal prospective study, we surveyed healthcare providers employed full-time at a large, multihospital healthcare system monthly over 6 months (April to November 2020). Participants were randomized using a 1:1 allocation stratified by provider type, gender, and academic hospital status to receive one of two versions of the survey instrument formulated with different ordering of the measures to minimize response bias due to context effects. The exposure of interest was POS measured using the validated 8-item Survey of POS (SPOS) scale. Primary outcomes of interest were anxiety and risk for burnout as measured by the validated 10-item Burnout scale from the Professional Quality (Pro-QOL) instrument and 4-item Emotional Distress-Anxiety short form of the Patient Reported Outcome Measurement Information System (PROMIS) scale, respectively. Linear mixed models evaluated the associations between POS and both burnout and anxiety. A mediation analysis evaluated whether anxiety mediated the POS-burnout association. RESULTS: Of the 538 participants recruited, 402 (75%) were included in the primary analysis. 55% of participants were physicians, 73% 25-44 years of age, 73% female, 83% White, and 44% had ≥1 dependent. Higher POS was significantly associated with a lower risk for burnout (-0.23; 95% CI -0.26, -0.21; p<0.001) and lower degree of anxiety (-0.07; 95% CI -0.09, -0.06; p = 0.010). Anxiety mediated the associated between POS and burnout (direct effect -0.17; 95% CI -0.21, -0.13; p<0.001; total effect -0.23; 95% CI -0.28, -0.19; p<0.001). CONCLUSION: During a health crisis, increasing the organizational support perceived by healthcare employees may reduce the risk for burnout through a reduction in anxiety. Improving the relationship between healthcare organizations and the individuals they employ may reduce detrimental effects of psychological distress among healthcare providers and ultimately improve patient care.

The Effect of Donor Graft Cryopreservation on Allogeneic Hematopoietic Cell Transplantation Outcomes: A Center for International Blood and Marrow Transplant Research Analysis. Implications during the COVID-19 Pandemic.

The COVID-19 pandemic has resulted in the increased use of cryopreserved grafts for allogeneic hematopoietic cell transplantation (HCT). However, information about the effect of cryopreservation on outcomes for patients receiving allogeneic donor grafts is limited. We evaluated outcomes of HCT recipients who received either fresh or cryopreserved allogeneic bone marrow (BM) or peripheral blood stem cell (PBSC) grafts reported to the Center for International Blood and Marrow Transplant Research. A total of 7397 patients were included in the analysis. Recipients of cryopreserved graft were divided into 3 cohorts based on graft source: HLA-matched related PBSC donors (n = 1051), matched unrelated PBSC donors (n = 678), and matched related or unrelated BM donors (n = 154). These patients were propensity score matched with 5514 patients who received fresh allografts. The primary endpoint was engraftment. Multivariate analyses showed no significant increased risk of delayed engraftment, relapse, nonrelapse mortality (NRM), or survival with cryopreservation of BM grafts. In contrast, cryopreservation of related donor PBSC grafts was associated with decreased platelet recovery (hazard ratio [HR], 0.73; 95% confidence interval [CI], 0.68 to 0.78; P < .001) and an increased risk of grade II-IV (HR, 1.27; 95% CI, 1.09 to 1.48; P = .002) and grade III-IV (HR, 1.48; 95% CI, 1.19 to 1.84; P < .001) acute graft-versus-host disease. Cryopreservation of unrelated PBSC grafts was associated with delayed engraftment of neutrophils (HR, 0.77; 95% CI, 0.71 to 0.84; P < .001) and platelets (HR, 0.61; 95% CI, 0.56 to 0.66; P < .001) as well as an increased risk of NRM (HR, 1.4; 95% CI, 1.18 to 1.66; P < .001) and relapse (HR, 1.32; 95% CI, 1.11 to 1.58; P = .002) and decreased progression-free survival (HR, 1.36; 95% CI, 1.20 to 1.55; P < .001) and overall survival (OS) (HR, 1.38; 95% CI, 1.22 to 1.58; P < .001). Reasons for cryopreservation were not routinely collected; however, in a subset of unrelated donor HCT recipients, the reason was typically a change in patient condition. Products cryopreserved for patient reasons were significantly associated with inferior OS in multivariate analysis (HR, 0.65; 95% CI, 0.44 to 0.96; P = .029). We conclude that cryopreservation is associated with slower engraftment of PBSC grafts, which may be associated with inferior transplantation outcomes in some patient populations. However, the small numbers in the cryopreserved BM cohort and the lack of information on the reason for cryopreservation in all patients suggests that these data should be interpreted with caution, particularly in the context of the risks associated with unexpected loss of a graft during the pandemic. Future analyses addressing outcomes when cryopreservation is universally applied are urgently required.

Serious Adverse Events in Related Donors: A Report from the Related Donor Safe Study.

The incidence and risk factors for severe adverse events (SAEs) in related donors (RD) of hematopoietic cell transplants is unknown. The Related Donor Safe study is a prospective observational cohort of 1680 RDs and represents an opportunity to examine characteristics of SAEs in RDs. In this cohort, we found that SAEs were reported in a total 12 (0.71%) RDs. Of these, 5 SAEs occurred in bone marrow donors (5/404, 1.24%), and 7 (7/1276, 0.55%) were in donors of peripheral blood stem cells. All of the SAEs were considered to be related (definite, probable, or possible) to the donation process. There were no donor fatalities. Of the 12 RDs who experienced an SAE, 10 were either overweight or obese. Five of the 12 RDs had predonation medical conditions that would have resulted in either possible or definite ineligibility for donation were they being assessed as unrelated donors. These SAE data will be useful in the counseling of prospective RDs before planned donation and may be helpful in identifying donors who should be considered medically unsuitable for donation.

South African physician emigration and return migration, 1991-2017: a trend analysis.

Although critical for understanding health labour market trends in low- and middle-income countries (LMICs), longitudinal LMIC health worker emigration and return migration trends are not routinely documented. This article seeks to better understand SA's trends in physician emigration and return migration and whether economic growth and related policies affect migration patterns. This study used physician registry data to analyse patterns of emigration and return migration only among SA-trained physicians registered to practice in top destination countries such as Australia, Canada, New Zealand, the USA or the UK between 1991 and 2017, which represent the top five emigration destinations for this group. A linear regression model analysed the relationship between migration trends (as dependent variables) and SA's economic growth, health financing and HIV prevalence (as independent variables). There has been a 6-fold decline in emigration rates from SA between 1991 and 2017 (from 1.8% to 0.3%/year), with declines in emigration to all five destination countries. About one in three (31.8% or 5095) SA physicians returned from destination countries as of 2017. Annual physician emigration fell by 0.16% for every $100 rise in SA GDP per capita (2011 international dollars) (95% confidence interval -0.60% to -0.086%). As of 2017, 21.6% (11 224) of all SA physicians had active registration in destination nations, down from a peak of 33.5% (16 366) in 2005, a decline largely due to return migration. Changes to the UK's licensing regulations likely affected migration patterns while the Global Code of Practice on International Recruitment contributed little to changes. A country's economic growth might influence physician emigration, with significant contribution from health workforce policy interventions. Return migration monitoring should be incorporated into health workforce planning.