A Family Aggregation Study: The Influence of Family History and Other Risk Factors on Language Development.
Substantial evidence continues to accrue for familial transmission of specific language impairment (SLI). The incidence in families with a history of SLI is estimated at approximately 20%-40%, whereas in the general population the estimated incidence is about 4%. Typical aggregation studies compare...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 46; no. 2; pp. 261 - 273 |
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| Autores principales: | , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
April 2003
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=507820620&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 507820620 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: April 2003 vid: 46 iid: 2 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 507820620 10.1044/1092-4388(2003/021) ppf: 261 ppct: 12 formats: fmt: – @attributes: type: T – @attributes: type: P size: 4.6MB tig: atl: A Family Aggregation Study: The Influence of Family History and Other Risk Factors on Language Development. aug: au: Choudhury, Naseem Benasich, April Ann su: Language disorders Children's language Children with learning disabilities Psychology sug: subj: Language disorders Children's language Children with learning disabilities Psychology ab: Substantial evidence continues to accrue for familial transmission of specific language impairment (SLI). The incidence in families with a history of SLI is estimated at approximately 20%-40%, whereas in the general population the estimated incidence is about 4%. Typical aggregation studies compare data on the speech and language status of parents and siblings of individuals with SLI (the probands) to similar data from family members of control individuals with no speech or language disorder history. In the present study, family aggregation of SLU was examined for a unique sample of children who were ascertained before 6 months of age and thus did not have SLI, but were born into a family with a positive history of SLI (FH+). No study to date has examined the pattern of affectance in families of children ascertained at such a young age. In addition, the ratio of boys to girls born into such families was investigated, as previous studies have suggested alterations in the expected gender ratios. Consistent with prior research, SLI was found to aggregate in families; the average affectance rote in FH+ families was 32%, with significantly more boys (41 %) reported as having SLI than girls (16%). A comparison of FH+ and control families (FH-) on sociodemographic factors and medical history revealed differences in the overall rate of autoimmune diseases; FH+ families reported a significantly higher incidence (35%) compared to FH- families (9%). Finally, the 3- year language abilities of a subset of 32 children from FH+ families were compared with those of 60 children from FH- families. Children from FH+ families scored significantly lower on standardized measures of language and were more likely to fall below the 16th percentile (28%) than children from FH- families (7%). These results provide converging evidence that children from FH+ families are indeed at greater risk of developing language delay compared to children from control families. Reprinted by permission of the publisher. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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