Evidence map›Paper›PMID 20145272›Full record

ArticleHaematologica2010

The Southern French registry of genetic hemochromatosis: a tool for determining clinical prevalence of the disorder and genotype penetrance.

Patricia Aguilar-Martinez, Michael Bismuth, François Blanc, Pierre Blanc, Severine Cunat, Olivier Dereure, Pierre Dujols, Muriel Giansily-Blaizot, Christian Jorgensen, Amadou Konate and 9 more

Abstract readComparative Study
In one paragraph

Article in Haematologica, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. 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

19 authors.

Patricia Aguilar-MartinezCHU of Montpellier Laboratory of Hematology, Hôpital Saint Eloi, Avenue Augustin Fliche, 34295 Montpellier Cedex 5, France. p-martinez@chu-montpellier.fr
Michael Bismuth
François Blanc
Pierre Blanc
Severine Cunat
Olivier Dereure
Pierre Dujols
Muriel Giansily-Blaizot
Christian Jorgensen
Amadou Konate
Dominique Larrey
Alain Le Quellec
Thibault Mura
Isabelle Raingeard
Jeanne Ramos
Eric Renard
Florence Rousseau
Jean-François Schved
Marie-Christine Picot

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDespite great progress in understanding the mechanisms underlying genetic hemochromatosis, data on the prevalence and the penetrance of the disorder are conflicting. DESIGN AND

methodsA registry of patients with genetic hemochromatosis was established in the South of France and a regional health network was developed to allow the inclusion of all the diagnosed patients. C282Y homozygous patients classified in stages 2 (biological iron overload), 3 and 4 (clinical manifestations of iron overload, stage 4 being the more severe) according to the classification of the French National Authority for Health were included in the registry over a 6-year period.

resultsA total of 352 symptomatic C282Y homozygotes were identified, resulting in a total prevalence of 1.83 per 10,000 (95% CI: 1.63 to 2.02) in subjects over 20 years and 2.40 per 10,000 (95% CI, 2.15 to 2.65) among subjects of European descent. Among Europeans, the total calculated penetrance was 15.8% in stage 2 or higher, 12.1% in stage 3 or 4 and 2.9% in stage 4. The penetrance was slightly higher in males (18.7%) than in females (13.2%). It was 19.9% for individuals over 40 years of age (24.1% and 16.3% in males and females, respectively) with a maximum of 31% in subjects between 50 and 54 years old. Among 249 patients with complete records, 24% were in stage 2, the majority (58%) were in stage 3, and 18% in stage 4. There was a higher proportion of males, and excessive alcohol intake was more prevalent in stage 4 than in stages 2 and 3 combined.

conclusionsA French Mediterranean regional hemochromatosis registry with strict inclusion criteria is a useful tool for characterizing the history of this disease, particularly for the most severely affected patients, as defined by the disease severity classification. The total prevalence of symptomatic C282Y homozygotes in the region was found to be low. However, clinical penetrance (stages 3 and 4) was not negligible.

Indexed as

Genetic Predisposition to DiseaseFemaleFranceGenetic TestingGenotypeHemochromatosisHomozygoteHumansIron OverloadMaleMiddle AgedMutationPenetranceRegistriesWhite People

Identifiers

PMID20145272
PMCPMC2857184

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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.