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Biomedical subjects

Wendy Weinstock Brown

Publications and source records attributed to Wendy Weinstock Brown.

5 recordsLinked to original sources

Factors associated with "do not resuscitate" orders and rates of withdrawal from hemodialysis in the international DOPPS.

BACKGROUND: Worldwide statistics on practice patterns regarding "do not resuscitate" (DNR) orders and patient withdrawal from hemodialysis have not been uniformly collected or analyzed. METHODS: Using data concerning adult hemodialysis patients randomly selected from 308 representative dialysis facilities in France, Germany, Italy, Japan, Spain, the United Kingdom, and the United States participating in the Dialysis Outcomes and Practice Patterns Study, DNR orders were tabulated at study entry from a prevalent cross-section of patients (N = 8615), using multivariate logistic regression to investigate characteristics associated with DNR status, Cox models to identify risk factors for withdrawal from hemodialysis, and scores from the mental component summary (MCS) and physical component summary (PCS) of the SF-36 to assess health-related quality of life. RESULTS: The United States had the highest prevalence of DNR orders (7.5%) and rate of withdrawal from hemodialysis (3.5 per 100 patient-years). Significant and independent associations with higher odds ratio (OR) of DNR were observed for older age (OR 1.16 per 10 years higher, P = 0.03) and nursing home residence (OR 2.34, P = 0.003), and with higher relative risk (RR) of withdrawal from dialysis (RR 2.38, P < 0.001). Patients who withdrew from hemodialysis died within a mean of 7.8 days and a median of 6.0 days. CONCLUSION: The higher prevalence of DNR and rate of withdrawal from hemodialysis in the United States are consistent with its greater legal and cultural emphasis on patient autonomy. By showing characteristics associated with these outcomes, this study contributes to our understanding of why hemodialysis patients request DNR or withdraw from treatment.

Adult↗

Early detection of kidney disease in community settings: the Kidney Early Evaluation Program (KEEP).

BACKGROUND: Early identification of persons at risk for kidney disease provides an opportunity to prevent or delay its progression and decrease morbidity and mortality. Our hypothesis was that implementation of a targeted screening program in communities with high-risk populations would detect previously unidentified persons with or at high risk for chronic kidney disease (CKD) with a prevalence that exceeds that predicted for CKD in the general population. METHODS: Persons with hypertension or diabetes or a first-order relative with hypertension, diabetes, or kidney disease were screened for kidney disease risk factors. Blood pressure, blood glucose level, serum creatinine level, hemoglobin level, microalbuminuria, hematuria, pyuria, body mass index, and estimated glomerular filtration rate (EGFR) were evaluated. RESULTS: Six thousand seventy-one eligible persons were screened from August 2000 through December 2001: of these persons, 68% were women, 43% were African American, 36% were white, 10% were Hispanic, and 5% were Native American. Most reported high-school education or more (84%) and health insurance coverage (86%). Twenty-seven percent met the screening definitions for diabetes; 64%, for hypertension; 29%, for microalbuminuria; 8%, for anemia; 18%, for hematuria; 13%, for pyuria; 5%, for elevated serum creatinine level; 16%, for reduced EGFR; and 44%, for obesity. Among participants without a reported history of specified conditions, screening identified 82 participants (2%) with diabetes, 1,014 participants (35%) with hypertension, 277 participants (5%) with elevated serum creatinine levels, 839 participants (14%) with reduced EGFRs, and 1,712 participants (29%) with microalbuminuria. Thirty-five percent of participants with a history of diabetes had elevated serum glucose levels at screening (> or =180 mg/dL [10 mmol/L]), and 64% with a history of hypertension did not have blood pressure controlled to less than 140/90 mm Hg. Only 18% of participants with a history of diabetes and 31% with a reduced EGFR had blood pressure controlled to less than 130/80 mm Hg and less than 135/85 mm Hg, respectively. CONCLUSION: Targeted screening is effective in identifying persons with previously unidentified or poorly controlled kidney disease risk factors, as well as persons with a moderately decreased EGFR.

Adolescent↗

Kidney Early Evaluation Program (KEEP). Findings from a community screening program.

PURPOSE: The Kidney Early Evaluation Program (KEEP), which was started in 1997, aims to identify persons at risk for chronic kidney disease (CKD) and encourage at-risk persons to seek evaluation and management from a healthcare provider. METHODS: Community screening was conducted using a standardized questionnaire and test panel that was administered by local affiliates of the National Kidney Foundation (NKF) using volunteer lay and medical personnel. The screening was limited to persons at high risk for CKD, which was defined as those with a personal history of diabetes or hypertension, or a first-order relative with diabetes, hypertension, or kidney disease. The KEEP Data Coordinating Center was established to maintain a de-identified database of demographic information and test results on the screened persons. RESULTS: Data on the first 11,246 participants were analyzed. As expected, the KEEP population was enriched with African Americans and was older than the general population. Diabetes was determined by self-report or abnormal blood glucose levels at screening and was present in 2690 of the persons screened. Chronic kidney disease was identified in 47.4% of this population. CONCLUSIONS: Targeted community screening for kidney disease in a high-risk population can identify a significant number of persons with CKD, enhance awareness of the disease, and may improve health-seeking behavior.

Chronic Disease↗