Evidence map›Paper›PMID 18516355›Full record

ArticleCardiovascular journal of Africa

Decision-making using absolute cardiovascular risk reduction and incremental cost-effectiveness ratios: a case study.

J A Ker, H Oosthuizen, P Rheeder

Full text read
In one paragraph

Article in Cardiovascular journal of Africa. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 3 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, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. 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

3 authors.

J A KerDepartment of Internal Medicine, School of Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.
H Oosthuizen
P Rheeder

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMany clinical guidelines have adopted a multifactorial cardiovascular risk assessment to identify high-risk individuals for treatment. The Framingham risk chart is a widely used risk engine to calculate the absolute cardiovascular risk of an individual. Cost-effective analyses are typically used to evaluate therapeutic strategies, but it is more problematic for a clinician when faced with alternative therapeutic strategies to calculate cost effectiveness.

aimWe used a single simulated-patient model to explore the effect of different drug treatments on the calculated absolute cardiovascular risk.

methodsThe Framingham risk score was calculated on a hypothetical patient, and drug treatment was initiated. After every drug introduced, the score was recalculated. Single-exit pricing of the various drugs in South Africa was used to calculate the cost of reducing predicted cardiovascular risk.

resultsThe cost-effective ratio of an antihypertensive treatment strategy was calculated to be R21.35 per percentage of risk reduction. That of a statin treatment strategy was R22.93 per percentage of risk reduction. U sing a high-dose statin, the cost-effective ratio was R12.81 per percentage of risk reduction. Combining the antihypertensive and statin strategy demonstrated a cost-effective ratio of R23.84 per percentage of risk reduction. A combination of several drugs enabled the hypothetical patient to reduce the risk to 14% at a cost-effective ratio of R17.18 per percentage of risk reduction.

conclusionThis model demonstrates a method to compare different therapeutic strategies to reduce cardiovascular risk with their cost-effective ratios.

Indexed as

Decision Support TechniquesDrug CostsAntihypertensive AgentsCardiovascular AgentsCardiovascular DiseasesComputer SimulationCost-Benefit AnalysisDrug Therapy, CombinationHealth Status IndicatorsHumansHydroxymethylglutaryl-CoA Reductase InhibitorsMaleMiddle AgedPatient SelectionPractice Guidelines as TopicPreventive Health ServicesAntihypertensive AgentsCardiovascular AgentsHydroxymethylglutaryl-CoA Reductase Inhibitors

Identifiers

PMID18516355
PMCPMC3975215

What OpenQuestion holds

Textfull text, public
LicenceCC BY
Read underepoch 390

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.