Evidence map›Paper›PMID 32734189›Full record

ArticleKidney medicine

International and Racial Differences in Mineral and Bone Disorder Markers and Treatments Over the First 5 Years of Hemodialysis in the Dialysis Outcomes and Practice Patterns Study.

Kevin Chan, Angelo Karaboyas, Hal Morgenstern, Bruce M Robinson, Friedrich K Port, Stefan H Jacobson, Masafumi Fukagawa, Yvonne Meier, Philipp A Csomor, Ronald L Pisoni

Abstract read
In one paragraph

Article in Kidney medicine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Kevin ChanDivision of Nephrology, Massachusetts General Hospital, Boston, MA.
Angelo KaraboyasArbor Research Collaborative for Health, University of Michigan Medical School, Ann Arbor, MI.
Hal MorgensternDepartment of Epidemiology, University of Michigan Medical School, Ann Arbor, MI.
Bruce M RobinsonArbor Research Collaborative for Health, University of Michigan Medical School, Ann Arbor, MI.
Friedrich K PortDepartment of Epidemiology, University of Michigan Medical School, Ann Arbor, MI.
Stefan H JacobsonKarolinska Institutet, Danderyd University Hospital, Stockholm, Sweden.
Masafumi FukagawaTokai University School of Medicine, Isehara, Japan.
Yvonne MeierVifor Pharma Ltd, Glattbrugg, Switzerland.
Philipp A CsomorVifor Pharma Ltd, Glattbrugg, Switzerland.
Ronald L PisoniArbor Research Collaborative for Health, University of Michigan Medical School, Ann Arbor, MI.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

RATIONALE &

objectiveNormalization of parathyroid hormone (PTH), serum calcium, and phosphorus levels may prevent coronary and bone disease in hemodialysis (HD) patients. We describe the trajectory of these mineral bone disorder parameters and treatments during the first 5 years of HD by international region and race. STUDY

designProspective cohort study. SETTING &

participants33,517 US black/African American, US non-black/African American, European, and Japanese HD patients from the Dialysis Outcomes and Practice Patterns Study (DOPPS) phases 4 to 5 (2009-2015). PREDICTOR: Time since HD initiation. OUTCOMES: Monthly cross-sections of mineral bone disorder parameters (PTH, serum calcium, and phosphorus) and medications (cinacalcet, active vitamin D, and phosphate binders).

resultsMean PTH levels declined precipitously during the first 4 months of HD in all 4 groups, then steadily increased during the next 4.5 years in the United States/Europe but not in Japan. 3 years after HD initiation (month 36), mean PTH level was highest in US black/African Americans (496 pg/mL), despite greater prescription of cinacalcet (23%) and active vitamin D (85%), and lowest in Japan (151 pg/mL). Mean serum calcium and phosphorus levels increased during the first 4 months of HD. By month 36, the mean calcium level was lower in Japan (8.8 mg/dL) than United States/Europe (9.0-9.1 mg/dL), while the mean phosphorus level was lower in Europe (4.8 mg/dL) than United States/Japan (5.1-5.3 mg/dL). LIMITATIONS: Lack of data for medication dosages; most patients were not followed from HD onset.

conclusionsLarge differences exist in the levels, trajectories, and therapies for PTH, calcium, and phosphorus by country and race in the first 5 years of HD. Higher PTH levels were observed in the United States, especially among black/African American patients, despite greater use of cinacalcet and active vitamin D than in Japan or Europe. Potential contributors to differences in PTH levels should be explored to study their impact on PTH management strategies and consequent bone and cardiovascular complications.

Indexed as

DOPPSHemodialysisinternational comparisonsmineral bone disordersmineral markers

Identifiers

PMID32734189
PMCPMC7380354

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.