Dataset Information

Racial/Ethnic Differences in the Association Between Hospitalization and Kidney Transplantation Among Waitlisted End-Stage Renal Disease Patients.

ABSTRACT: Even after placement on the deceased donor waitlist, there are racial disparities in access to kidney transplant. The association between hospitalization, a proxy for health while waitlisted, and disparities in kidney transplant has not been investigated.We used United States Renal Data System Medicare-linked data on waitlisted end-stage renal disease patients between 2005 and 2009 with continuous enrollment in Medicare Parts A & B (n = 24 581) to examine the association between annual hospitalization rate and odds of receiving a deceased donor kidney transplant. We used multilevel mixed effects models to estimate adjusted odds ratios, controlling for individual-, transplant center-, and organ procurement organization-level clustering.Blacks and Hispanics were more likely than whites to be hospitalized for circulatory system or endocrine, nutritional, and metabolic diseases (P < 0.001). After adjustment, compared with individuals not hospitalized, patients who were hospitalized frequently while waitlisted were less likely to be transplanted (>2 vs 0 hospitalizations/year adjusted odds ratios = 0.57; P < 0.001). Though blacks and Hispanics were more likely to be hospitalized than whites (P < 0.001), adjusting for hospitalization did not change estimated racial/ethnic disparities in kidney transplantation.Individuals hospitalized while waitlisted were less likely to receive a transplant. However, hospitalization does not account for the racial disparity in kidney transplantation after waitlisting.

SUBMITTER: Newman KL

PROVIDER: S-EPMC4972697 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

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Racial/Ethnic Differences in the Association Between Hospitalization and Kidney Transplantation Among Waitlisted End-Stage Renal Disease Patients.

Newman Kira L KL Fedewa Stacey A SA Jacobson Melanie H MH Adams Andrew B AB Zhang Rebecca R Pastan Stephen O SO Patzer Rachel E RE

Transplantation 20161201 12

<h4>Background</h4>Even after placement on the deceased donor waitlist, there are racial disparities in access to kidney transplant. The association between hospitalization, a proxy for health while waitlisted, and disparities in kidney transplant has not been investigated.<h4>Methods</h4>We used United States Renal Data System Medicare-linked data on waitlisted end-stage renal disease patients between 2005 and 2009 with continuous enrollment in Medicare Parts A & B (n = 24 581) to examine the a ...[more]

PMID: 26845307

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Project description:BackgroundStudies using local samples suggest that racial minorities anticipate a greater preference for life-sustaining treatment when faced with a terminal illness. These studies are limited by size, representation, and insufficient exploration of sociocultural covariables.ObjectiveTo explore racial and ethnic differences in concerns and preferences for medical treatment at the end of life in a national sample, adjusting for sociocultural covariables.DesignDual-language (English/Spanish), mixed-mode (telephone/mail) survey.ParticipantsA total of 2,847 of 4,610 eligible community-dwelling Medicare beneficiaries age 65 or older on July 1, 2003 (62% response).MeasurementsDemographics, education, financial strain, health status, social networks, perceptions of health-care access, quality, and the effectiveness of mechanical ventilation (MV), and concerns and preferences for medical care in the event the respondent had a serious illness and less than 1 year to live.ResultsRespondents included 85% non-Hispanic whites, 4.6% Hispanics, 6.3% blacks, and 4.2% "other" race/ethnicity. More blacks (18%) and Hispanics (15%) than whites (8%) want to die in the hospital; more blacks (28%) and Hispanics (21.2%) than whites (15%) want life-prolonging drugs that make them feel worse all the time; fewer blacks (49%) and Hispanics (57%) than whites (74%) want potentially life-shortening palliative drugs, and more blacks (24%, 36%) and Hispanics (22%, 29%) than whites (13%, 21%) want MV for life extension of 1 week or 1 month, respectively. In multivariable analyses, sociodemographic variables, preference for specialists, and an overly optimistic belief in the effectiveness of MV explained some of the greater preferences for life-sustaining drugs and mechanical ventilation among non-whites. Black race remained an independent predictor of concern about receiving too much treatment [adjusted OR = 2.0 (1.5-2.7)], preference for dying in a hospital [AOR = 2.3 (1.6-3.2)], receiving life-prolonging drugs [1.9 (1.4-2.6)], MV for 1 week [2.3 (1.6-3.3)] or 1 month's [2.1 (1.6-2.9)] life extension, and a preference not to take potentially life-shortening palliative drugs [0.4 (0.3-0.5)]. Hispanic ethnicity remained an independent predictor of preference for dying in the hospital [2.2 (1.3-4.0)] and against potentially life-shortening palliative drugs [0.5 (0.3-0.7)].ConclusionsGreater preference for intensive treatment near the end of life among minority elders is not explained fully by confounding sociocultural variables. Still, most Medicare beneficiaries in all race/ethnic groups prefer not to die in the hospital, to receive life-prolonging drugs that make them feel worse all the time, or to receive MV.

Project description:BACKGROUND:Cardiovascular disease is a significant cause of morbidity and mortality in patients with end-stage renal disease (ESRD) and kidney transplant (KT) patients. Compared with left ventricular (LV) ejection fraction (LVEF), LV strain has emerged as an important marker of LV function as it is less load dependent. We sought to evaluate changes in LV strain using cardiovascular magnetic resonance imaging (CMR) in ESRD patients who received KT, to determine whether KT may improve LV function. METHODS:We conducted a prospective multi-centre longitudinal study of 79 ESRD patients (40 on dialysis, 39 underwent KT). CMR was performed at baseline and at 12?months after KT. RESULTS:Among 79 participants (mean age 55 years; 30% women), KT patients had significant improvement in global circumferential strain (GCS) (p?=?0.007) and global radial strain (GRS) (p?=?0.003), but a decline in global longitudinal strain (GLS) over 12?months (p?=?0.026), while no significant change in any LV strain was observed in the ongoing dialysis group. For KT patients, the improvement in LV strain paralleled improvement in LVEF (57.4?±?6.4% at baseline, 60.6%?±?6.9% at 12?months; p?=?0.001). For entire cohort, over 12?months, change in LVEF was significantly correlated with change in GCS (Spearman's r?=?-?0.42, p?<?0.001), GRS (Spearman's r?=?0.64, p?<?0.001), and GLS (Spearman's r?=?-?0.34, p?=?0.002). Improvements in GCS and GRS over 12?months were significantly correlated with reductions in LV end-diastolic volume index and LV end-systolic volume index (all p?<?0.05), but not with change in blood pressure (all p?>?0.10). CONCLUSIONS:Compared with continuation of dialysis, KT was associated with significant improvements in LV strain metrics of GCS and GRS after 12?months, which did not correlate with blood pressure change. This supports the notion that KT has favorable effects on LV function beyond volume and blood pessure control. Larger studies with longer follow-up are needed to confirm these findings.

Project description:BackgroundPrevious studies have demonstrated that early pre-end-stage renal disease (ESRD) nephrology care could improve postdialysis prognosis. However, less is known about the specific types of interventions responsible for the improved outcomes. We hypothesized that more frequent predialysis laboratory testing is associated with better postdialysis outcomes in incident ESRD patients.MethodsIn all, 23?089 patients with available outpatient laboratory tests performed during the 2-year predialysis (i.e. prelude) period were identified from a total of 52?172 American veterans with chronic kidney disease (CKD) transitioning to dialysis between October 2007 and September 2011. The associations between the frequency of combined laboratory tests, including serum creatinine, serum potassium and hemoglobin (test trio), with postdialysis mortality and hospitalization were examined in multivariable adjusted Cox and logistic regression models.ResultsWhen entering the 2-year prelude period, the mean age (Standard Deviation) of the patients was 66.2 (SD 11.3)?years and the mean estimated glomerular filtration rate was 46.8 (SD 23.9)?mL/min/1.73 m2. In all, 14% of patients had the test trio performed less than twice in 24?months and 8.9% had the trio measured more often than every other month. Over a 2.5-year median postdialysis follow-up period, 15?303 (66.3%) patients died (mortality rate 260/1000 patient-years). The adjusted hazard ratio of all-cause mortality and adjusted odds ratio of the composite of hospitalization or death associated with lab testing done >12/24?months compared with 2-?4/24 months were 0.68 [95% confidence interval (CI) 0.65-0.73] and 0.70 (95% CI 0.62-0.79), respectively.ConclusionsMore frequent laboratory testing in patients with advanced CKD is associated with better clinical outcomes after dialysis. Further examination in clinical trials is needed before the implementation of more frequent laboratory testing in clinical practice.

Project description:ImportanceDialysis facilities in the United States are required to educate patients with end-stage renal disease about all treatment options, including kidney transplantation. Patients receiving dialysis typically require a referral for kidney transplant evaluation at a transplant center from a dialysis facility to start the transplantation process, but the proportion of patients referred for transplantation is unknown.ObjectiveTo describe variation in dialysis facility-level referral for kidney transplant evaluation and factors associated with referral among patients initiating dialysis in Georgia, the US state with the lowest kidney transplantation rates.Design, setting, and participantsExamination of United States Renal Data System data from a cohort of 15,279 incident, adult (18-69 years) patients with end-stage renal disease from 308 Georgia dialysis facilities from January 2005 to September 2011, followed up through September 2012, linked to kidney transplant referral data collected from adult transplant centers in Georgia in the same period.Main outcomes and measuresReferral for kidney transplant evaluation within 1 year of starting dialysis at any of the 3 Georgia transplant centers was the primary outcome; placement on the deceased donor waiting list was also examined.ResultsThe median within-facility percentage of patients referred within 1 year of starting dialysis was 24.4% (interquartile range, 16.7%-33.3%) and varied from 0% to 75.0%. Facilities in the lowest tertile of referral (<19.2%) were more likely to treat patients living in high-poverty neighborhoods (absolute difference, 21.8% [95% CI, 14.1%-29.4%]), had a higher patient to social worker ratio (difference, 22.5 [95% CI, 9.7-35.2]), and were more likely nonprofit (difference, 17.6% [95% CI, 7.7%-27.4%]) compared with facilities in the highest tertile of referral (>31.3%). In multivariable, multilevel analyses, factors associated with lower referral for transplantation, such as older age, white race, and nonprofit facility status, were not always consistent with the factors associated with lower waitlisting.Conclusions and relevanceIn Georgia overall, a limited proportion of patients treated with dialysis were referred for kidney transplant evaluation between 2005 and 2011, but there was substantial variability in referral among facilities. Variables associated with referral were not always associated with waitlisting, suggesting that different factors may account for disparities in referral.

Dataset Information

Racial/Ethnic Differences in the Association Between Hospitalization and Kidney Transplantation Among Waitlisted End-Stage Renal Disease Patients.

Publications

Racial/Ethnic Differences in the Association Between Hospitalization and Kidney Transplantation Among Waitlisted End-Stage Renal Disease Patients.

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