Evidence map›Paper›PMID 20303789›Full record

Trial reportJournal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation2010

Folic acid supplementation and cardiac and stroke mortality among hemodialysis patients.

June Leung, Brett Larive, Johanna Dwyer, Patricia Hibberd, Paul Jacques, William Rand, HEMO Study Group

Abstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
–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

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Association between adherence to folic acid supplements and serum folate, and plasma homocysteine among hemodialysis patients.Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation · 2011
    Article
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

7 authors.

June LeungGerald J. and Dorothy R. Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts 02111, USA. june.leung@tufts.edu
Brett Larive
Johanna Dwyer
Patricia Hibberd
Paul Jacques
William Rand
HEMO Study Group

Funding

HEMODIALYSIS OUTCOME STUDY--DATA COORDINATING CENTERU01DK046143 · NIDDK · CLEVELAND CLINIC FOUNDATION · PI BECK, GERALD J · 1992 to 2005
$3.1M
Midcareer Investigator Award in Patient-Oriented Research (K24)K24AT003683 · NCCIH · TUFTS MEDICAL CENTER · PI HIBBERD, PATRICIA L · 2006 to 2015
$1.9M
NCCIH NIH HHS K24 AT003683NIDDK NIH HHS U01 DK046143
6 · The paper itself

Abstract

objectiveWe sought to assess whether the use of folic acid vitamin supplements reduced cardiac and stroke mortality in hemodialysis patients. Further, we examined whether the consumption of folic acid from vitamin supplements >1000 microg compared with the standard 1000 microg, and 1000 microg compared with either a lower dose or no consumption, were associated with reduced cardiac and stroke mortality risk.

designWe performed a secondary analysis of data from the Hemodialysis Study, a randomized clinical trial examining dialysis treatment regimens over a 3-year follow-up.

participantsParticipants included 1846 hemodialysis patients previously participating in the Hemodialysis Study.

interventionsThere were no interventions.

main outcome measureCardiac and stroke mortality were our main outcome measures.

resultsBased on time-dependent Cox proportional hazard regression models, folic acid consumption from vitamin supplements, above or below the standard 1000-microg dose, was not associated with a decrease or increase in cardiac mortality (P = .53, above vs. standard dose; P = .46, below vs. standard dose). There was also no association between folic acid consumption and mortality from stroke (P = .27, above vs. standard dose; P = .64, below vs. standard dose).

conclusionThe consumption of higher than the standard 1000-microg prescribed dose of folic acid was not beneficial in reducing cardiac or stroke mortality in hemodialysis patients. Similarly, the consumption of less than the standard dose was not associated with an increase in either cardiac or stroke mortality.

Indexed as

Dietary SupplementsRenal DialysisDose-Response Relationship, DrugFemaleFolic AcidFollow-Up StudiesHeart DiseasesHumansKidney Failure, ChronicMaleMalnutritionMiddle AgedProportional Hazards ModelsProspective StudiesSeverity of Illness IndexStrokeFolic AcidVitamin B Complex

Identifiers

PMID20303789
PMCPMC2892247

What OpenQuestion holds

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Registered trials

None linked

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.