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Evidence summaries

Speech and Language Therapy Interventions for Children with Primary Speech and Language Delay or Disorder

Speech and language therapy interventions may be effective for children with expressive phonological and vocabulary difficulties. Level of evidence: "C"

A Cochrane review 1 [Abstract] included 25 studies. The results suggest that speech and language therapy is effective for children with phonological (SMD=0.44, 95%CI: 0.01 - 0.86; 7 studies, n=264) or vocabulary difficulties (SMD=0.89, 95%CI: 0.21 - 1.56; n=136), but that there is less evidence that interventions are effective for children with receptive difficulties (SMD=-0.04, 95%CI: -0.64 - 0.56; 2 studies, n=193). Mixed findings were found concerning the effectiveness of expressive syntax interventions (SMD=1.02, 95%CI: 0.04 - 2.01; n=233). No significant differences were shown between clinician administered intervention and intervention implemented by trained parents, and studies did not show a difference between the effects of group and individual interventions (SMD=0.01, 95%CI: -0.26 - 1.17; one study, n=216). The use of normal language peers in therapy was shown to have a positive effect on therapy outcome (SMD=2.29, 95%CI: 1.11 - 3.48; one study, n=20).

Comment: The quality of evidence is downgraded by study quality (unclear allocation concealment) and inconsistency (heterogeneity in treatments).

References

  • Law J, Garrett Z, Nye C. Speech and language therapy interventions for children with primary speech and language delay or disorder. Cochrane Database Syst Rev 2003;(3):CD004110. [PubMed]

Primary/Secondary Keywords