Evidence map›Paper›PMID 39209496›Full record

SynthesisBMJ open2024

Shared characteristics of intervention techniques for oral vocabulary and speech comprehensibility in preschool children with co-occurring features of developmental language disorder and speech sound disorder: a systematic review with narrative synthesis.

Lucy Rodgers, Nicola Botting, Sam Harding, Martin Cartwright, Meriem Amer-El-Khedoud, Rosalind Herman

Abstract readSystematic Review
In one paragraph

Synthesis in BMJ open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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

6 authors.

Lucy RodgersDepartment of Language and Communication Science, City University of London, London, UK lucy.rodgers@city.ac.uk.ORCID 0000-0001-6585-7206
Nicola BottingDepartment of Language and Communication Science, City University of London, London, UK.
Sam HardingBristol Speech and Language Therapy Research Unit, North Bristol NHS Trust, Westbury on Trym, UK.ORCID 0000-0002-5870-2094
Martin CartwrightDepartment of Health Services Research and Management, City University of London, London, UK.
Meriem Amer-El-KhedoudDepartment of Language and Communication Science, City University of London, London, UK.
Rosalind HermanDepartment of Language and Communication Science, City University of London, London, UK.

Funding

Wellcome Trust
6 · The paper itself

Abstract

objectivesTo descriptively compare and contrast intervention techniques for preschool children with features of developmental language disorder (outcome: oral vocabulary) and speech sound disorder (outcome: speech comprehensibility) and analyse them in relation to effectiveness and theory.

designThis is a systematic review with narrative synthesis. The process was supported by an expert steering group consisting of relevant professionals and people with lived experience. DATA SOURCES: Ovid Emcare, MEDLINE Complete, CINAHL, APA PsycINFO, ERIC, and Communication Source from January 2012 were searched. Relevant studies were obtained from an initial published review (up to January 2012). ELIGIBILITY CRITERIA: Interventions for preschool children (80% aged 2:0-5:11 years) with idiopathic speech or language needs; outcomes relating to either oral vocabulary or speech comprehensibility. DATA EXTRACTION AND SYNTHESIS: Searches were conducted on 27 January 2023. Two independent researchers screened at abstract and full-text levels. Data regarding intervention content (eg, techniques) and format/delivery (eg, dosage, location) were extracted. Data were synthesised narratively according to the methods of Campbell

results24 studies were included: 18 for oral vocabulary and 6 for speech comprehensibility. There were 11 randomised controlled trials, 2 cohort studies and 11 case series. Similarities included a focus on input-related techniques and similar therapy activities. Speech studies were more likely to be professional-led and clinic-led, rather than at home and through a parent. Analysis was restricted by heterogeneity in study design and terminology, as well as gaps within intervention reporting. Information deemed important to the expert steering group was missing.

conclusionsSimilarities and differences between intervention techniques for oral vocabulary and speech comprehensibility have been identified and synthesised. However, analysis of effectiveness was limited due to issues with study design and heterogeneity within studies. This has implications for the progression of the evidence base within the field. PROSPERO REGISTRATION NUMBER: CRD42022373931.

Indexed as

Language Development DisordersSpeech Sound DisorderVocabularyChild, PreschoolComprehensionHumansLanguage TherapySpeech IntelligibilitySpeech Therapycommunity child healthdevelopmental neurology & neurodisabilityspeech pathology

Identifiers

PMID39209496
PMCPMC11367316

What OpenQuestion holds

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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.