Evidence map›Paper›PMID 22963680›Full record

ArticleHealth economics review2012

Methodological considerations in cost of illness studies on Alzheimer disease.

Nagede Costa, Helene Derumeaux, Thomas Rapp, Valérie Garnault, Laura Ferlicoq, Sophie Gillette, Sandrine Andrieu, Bruno Vellas, Michel Lamure, Alain Grand and 1 more

Abstract read
In one paragraph

Article in Health economics review, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 7 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

35 citing papers in PubMed, 7 syntheses or guidelines pooled it.

  1. Pooled it
  2. A consensus-based checklist for the critical appraisal of cost-of-illness (COI) studies.International journal of technology assessment in health care · 2023
    Guideline
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  13. The economic burden of bipolar disorder: a case study in Southern Iran.Cost effectiveness and resource allocation : C/E · 2024
    Article
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  18. The economic burden of obesity in Italy: a cost-of-illness study.The European journal of health economics : HEPAC : health economics in prevention and care · 2022
    Article
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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

11 authors.

Nagede CostaDepartment of Medical Information, University Hospital of Toulouse, Toulouse, F-31059, France. costa.n@chu-toulouse.fr.
Helene Derumeaux
Thomas Rapp
Valérie Garnault
Laura Ferlicoq
Sophie Gillette
Sandrine Andrieu
Bruno Vellas
Michel Lamure
Alain Grand
Laurent Molinier

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cost-of-illness studies (COI) can identify and measure all the costs of a particular disease, including the direct, indirect and intangible dimensions. They are intended to provide estimates about the economic impact of costly disease. Alzheimer disease (AD) is a relevant example to review cost of illness studies because of its costliness.The aim of this study was to review relevant published cost studies of AD to analyze the method used and to identify which dimension had to be improved from a methodological perspective. First, we described the key points of cost study methodology. Secondly, cost studies relating to AD were systematically reviewed, focussing on an analysis of the different methods used. The methodological choices of the studies were analysed using an analytical grid which contains the main methodological items of COI studies. Seventeen articles were retained. Depending on the studies, annual total costs per patient vary from $2,935 to $52, 954. The methods, data sources, and estimated cost categories in each study varied widely. The review showed that cost studies adopted different approaches to estimate costs of AD, reflecting a lack of consensus on the methodology of cost studies. To increase its credibility, closer agreement among researchers on the methodological principles of cost studies would be desirable.

Identifiers

PMID22963680
PMCPMC3563616

What Socratic 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 Socratic graph.