期刊
BRITISH MEDICAL JOURNAL
卷 321, 期 7266, 页码 923-926出版社
BRITISH MED JOURNAL PUBL GROUP
DOI: 10.1136/bmj.321.7266.923
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Objective To compare routine speech and language therapy in preschool children with delayed speech and language against 12 months of watchful waiting. Design Pragmatic randomised controlled trial. Setting 16 community clinics in Bristol. Participants 159 preschool children with appreciable speech or language difficulties who fulfilled criteria for admission to speech and language therapy. Main outcome measures Four quantitative measures of speech and language, assessed at 6 and 12 months; a binary variable indicating improvement by 12 months, on the trial entry criterion. Results Improvement in auditory comprehension was significant in favour of therapy (adjusted difference in means 4.1, 95% confidence interval 0.5 to 7.6; P = 0.025). No significant differences were observed for expressive language (1.4, - 2.1 to 4.8; P = 0.44); phonology error rate (- 4.4, - 12.0 to 3.3; P = 0.26); language development (0.1, - 0.4 to 0.6; P = 0.73); or improvement on entry criterion (odds ratio 1.3, 0.67 to 2.4; P = 0.46). At the end of the trial, 70% of all children still had substantial speech and language deficits. Conclusions This study provides little evidence for the effectiveness of speech and language therapy compared with watchful waiting over 12 months. Providers of speech and language therapy should reconsider the appropriateness, timing, nature, and intensity of such therapy in preschool children. Continued research into more specific provision to subgroups of children is also needed to identify better treatment methods. The lack of resolution of difficulties for most of the children suggests that further research is needed to identify effective ways of helping this population of children.
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