Yuanchao Zheng

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BACKGROUND AND OBJECTIVES The transition from CKD to ESRD can be particularly unstable, with high rates of death and hospitalizations. Few studies have examined medication use during this critical period. We examined patterns of antihypertensive medication use from the four quarters before and eight quarters after incident ESRD treated with maintenance(More)
The Medicare program insures >80% of patients with ESRD in the United States. An emphasis on reducing outpatient dialysis costs has motivated consolidation among dialysis providers, with two for-profit corporations now providing dialysis for >70% of patients. It is unknown whether industry consolidation has affected patients' ability to choose among(More)
BACKGROUND While data from the latter part of the twentieth century consistently showed that immigrants to high-income countries faced higher cardio-metabolic risk than their counterparts in low- and middle-income countries, urbanization and associated lifestyle changes may be changing these patterns, even for conditions considered to be advanced(More)
BACKGROUND The type of vascular access used for hemodialysis affects patient morbidity and mortality. Whether vascular access types differ by glomerulonephritis (GN) subtype in the US hemodialysis population has not been investigated. STUDY DESIGN Cross-sectional observational study. SETTING & PARTICIPANTS We identified all adult (aged ≥ 18 years)(More)
Kidney biopsies to elucidate the cause of chronic kidney disease (CKD) are performed in a minority of persons with CKD living in high-income countries, since associated conditions-that is, diabetes mellitus, vascular disease or obesity with pre-diabetes, prehypertension or dyslipidaemia-can inform management targeted at slowing CKD progression in a(More)
BACKGROUND There is a lack of data on the relationship between glycemic control and cardiovascular end points in hemodialysis patients with diabetes mellitus. METHODS AND RESULTS We included adult Medicare-insured patients with diabetes mellitus who initiated in-center hemodialysis treatment from 2006 to 2008 and survived for >90 days. Quarterly mean(More)
BACKGROUND AND OBJECTIVES The use of palliative care in AKI is not well described. We sought to better understand palliative care practice patterns for hospitalized patients with AKI requiring dialysis in the United States. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Using the 2012 National Inpatient Sample, we identified patients with AKI and(More)
BACKGROUND The economic burden of acute kidney injury (AKI) is not well understood. OBJECTIVE To estimate the effects of AKI on hospitalization costs and length of stay (LOS). DESIGN Using data from the 2012 National Inpatient Sample, we compared hospitalization costs and LOS with and without AKI. We used a generalized linear model with a gamma(More)
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