Evidence map›Paper›PMID 9973286›Full record

ArticleAmerican journal of human genetics1999

Prevalence and phenotype consequence of FRAXA and FRAXE alleles in a large, ethnically diverse, special education-needs population.

D C Crawford, K L Meadows, J L Newman, L F Taft, D L Pettay, L B Gold, S J Hersey, E F Hinkle, M L Stanfield, P Holmgreen and 3 more

Abstract read
In one paragraph

Article in American journal of human genetics, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 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

42 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Guideline
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Increased iron content in the heart of the Fmr1 knockout mouse.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2021
    Article
  7. Article
  8. Review
  9. Screening forBioMed research international · 2021
    Article
  10. Article
  11. Article
  12. Article
  13. Defining the role of the CGGBP1 protein in FMR1 gene expression.European journal of human genetics : EJHG · 2016
    Article
  14. Article
  15. Article
  16. Fragile X spectrum disorders.Intractable & rare diseases research · 2014
    Review
  17. Article
  18. Article
  19. FMR1 CGG expansions: prevalence and sex ratios.American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics · 2013
    Article
  20. 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

13 authors.

D C CrawfordDepartment of Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA.
K L Meadows
J L Newman
L F Taft
D L Pettay
L B Gold
S J Hersey
E F Hinkle
M L Stanfield
P Holmgreen
M Yeargin-Allsopp
C Boyle
S L Sherman

Funding

Genetics Epidemiology of the FMR1 GeneR01HD029909 · NICHD · EMORY UNIVERSITY · PI SHERMAN, STEPHANIE L. · 1994 to 2009
$6.1M
NICHD NIH HHS HD29909
6 · The paper itself

Abstract

We conducted a large population-based survey of fragile X (FRAXA) syndrome in ethnically diverse metropolitan Atlanta. The eligible study population consisted of public school children, aged 7-10 years, in special education-needs (SEN) classes. The purpose of the study was to estimate the prevalence among whites and, for the first time, African Americans, among a non-clinically referred population. At present, 5 males with FRAXA syndrome (4 whites and 1 African American), among 1,979 tested males, and no females, among 872 tested females, were identified. All males with FRAXA syndrome were mentally retarded and had been diagnosed previously. The prevalence for FRAXA syndrome was estimated to be 1/3,460 (confidence interval [CI] 1/7,143-1/1,742) for the general white male population and 1/4, 048 (CI 1/16,260-1/1,244) for the general African American male population. We also compared the frequency of intermediate and premutation FRAXA alleles (41-199 repeats) and fragile XE syndrome alleles (31-199 repeats) in the SEN population with that in a control population, to determine if there was a possible phenotype consequence of such high-repeat alleles, as has been reported previously. No difference was observed between our case and control populations, and no difference was observed between populations when the probands were grouped by a rough estimate of IQ based on class placement. These results suggest that there is no phenotype consequence of larger alleles that would cause carriers to be placed in an SEN class.

Indexed as

AllelesEthnicityPopulation SurveillanceChildFemaleFragile X SyndromeGenetic Carrier ScreeningHumansMalePhenotypePrevalence

Identifiers

PMID9973286
PMCPMC1377758

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.