Evidence map›Paper›PMID 9032640›Full record

ArticleJournal of medical genetics1997

Fragile X syndrome is less common than previously estimated.

J E Morton, S Bundey, T P Webb, F MacDonald, P M Rindl, S Bullock

Open access · bronzeAbstract read
In one paragraph

Article in Journal of medical genetics, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
7.9field-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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 90 citations in OpenAlex.

  1. Guideline
  2. Up-regulation of Minibrain/DYRK1A contributes to macrocephaly and brain overgrowth in aProceedings of the National Academy of Sciences of the United States of America · 2026
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  10. Living with genetic risk: effect on adolescent self-concept.American journal of medical genetics. Part C, Seminars in medical genetics · 2008
    Article
  11. Article
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  13. Article
  14. FRAXA and FRAXE: the results of a five year survey.Journal of medical genetics · 2000
    Article
  15. Article
  16. Article
  17. Article
  18. Recurrence risks in mental retardation.Journal of medical genetics · 1998
    Review
  19. FMR1 and the fragile X syndrome: human genome epidemiology review.Genetics in medicine : official journal of the American College of Medical Genetics
    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

6 authors at 1 institution in 1 country.

J E MortonClinical Genetics Unit, Birmingham Women's Hospital, Edgbaston, UK.
S Bundey
T P Webb
F MacDonald
P M Rindl
S Bullock
Birmingham Women's Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In 1986, a population study of school children in the city of Coventry gave an overall prevalence in males and females for fragile X syndrome of 1/952. The 29 children diagnosed as having fragile X syndrome in this study have been re-evaluated with molecular diagnostic techniques. Eighteen of the original 29 children have been found not to have the expansion of the FMR1 gene associated with fragile X syndrome. Revised prevalence figures have been calculated giving rise to an overall prevalence figure of 1/2720 (range 1/2198-1/3089). If the four children lost to follow up are also assumed not to have the fragile X syndrome, the revised prevalence figure was 1/5714 (range 1/4762-1/6349). Clinical review of boys with severe mental retardation from this and a subsidiary study show that the clinical features of head circumference greater than the 50th centile, testicular volume greater than the 50th centile, and IQ between 35 and 70 remain helpful in distinguishing boys with fragile X syndrome from those who have non-specific mental retardation.

Indexed as

Genetic TestingX ChromosomeAdolescentBlotting, SouthernChildCytogeneticsDiagnosis, DifferentialFemaleFragile X SyndromeHumansIn Situ HybridizationIntellectual DisabilityIntelligence TestsMalePrevalenceSex Chromosome Aberrations

Identifiers

PMID9032640
PMCPMC1050837
OpenAlexW2035470829

What OpenQuestion holds

Textmetadata
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.