Evidence map›Paper›PMID 10490559›Full record

ArticleHeart (British Cardiac Society)1999

Serum total homocysteine and coronary heart disease: prospective study in middle aged men.

P H Whincup, H Refsum, I J Perry, R Morris, M Walker, L Lennon, A Thomson, P M Ueland, S B Ebrahim

Open access · bronzeAbstract read
In one paragraph

Article in Heart (British Cardiac Society), 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
7.0field-weighted citation impact, top 2% of its field
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

17 citing papers in PubMed, 126 citations in OpenAlex.

  1. Trial
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  11. Hyperhomocysteinemia and recurrent carotid stenosis.BMC cardiovascular disorders · 2008
    Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Homocysteine and ischaemic stroke in men: the Caerphilly study.Journal of epidemiology and community health · 2001
    Article
  17. Review
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

9 authors at 4 institutions in 3 countries.

P H WhincupCardiovascular Research Unit, Department of Primary Care and Population Sciences, Royal Free Hospital School of Medicine, London NW3 2PF, UK. peterw@rfhsm.ac.uk
H Refsum
I J Perry
R Morris
M Walker
L Lennon
A Thomson
P M Ueland
S B Ebrahim
The Royal Free Hospital · GBUniversity College Cork · IEUniversity College London · GBUniversity of Bergen · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo examine the prospective relation between total homocysteine and major coronary heart disease events.

designA nested case-control study carried out within the British regional heart study, a prospective investigation of cardiovascular disease in men aged 40-59 years at entry. Serum total homocysteine concentrations were analysed retrospectively and blindly in baseline samples from 386 cases who had a myocardial infarct during 12.8 years of follow up and from 454 controls, frequency matched by age and town.

resultsGeometric mean serum total homocysteine was slightly higher in cases (14.2 micromol/l) than in controls (13.5 micromol/l), a proportional difference of 5.5% (95% confidence interval (CI) -0.02% to 10.8%, p = 0.06). Age adjusted risk of myocardial infarction increased weakly with log total homocysteine concentration; a 1 SD increase in log total homocysteine (equivalent to a 47% increase in total homo cysteine) was associated with an increase in odds of myocardial infarction of 1.15 (95% CI 1.00 to 1. 32; p = 0.05). The relation was particularly marked in the top fifth of the total homocysteine distribution (values >16.5 micromol/l), which had an odds ratio of 1.77 (95% CI 1.28 to 2.42) compared with lower levels. Adjustment for other risk factors had little effect on these findings. Total homocysteine concentrations more than 16.5 micromol/l accounted for 13% of the attributable risk of myocardial infarction in this study population. Serum total homocysteine among control subjects varied between towns and was correlated with town standardised mortality ratios for coronary heart disease (r = 0.43, p = 0.08).

conclusionsSerum total homocysteine is prospectively related to increased coronary risk and may also be related to geographical variation in coronary risk within Britain. These results strengthen the case for trials of total homocysteine reduction with folate.

Indexed as

AdultAge FactorsBiomarkersCase-Control StudiesCoronary DiseaseFollow-Up StudiesHomocysteineHumansMaleMiddle AgedMyocardial InfarctionOdds RatioPrognosisProspective StudiesRisk FactorsBiomarkersHomocysteine

Identifiers

PMID10490559
PMCPMC1760283
OpenAlexW2109291856

What OpenQuestion holds

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Registered trials

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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.