Preventing Early language delay in Primary care setting:cluster randomised trial

该试验旨在通过与普遍的维多利亚州妇幼保健（M和CH）服务相关的可持续早期语言促进计划，减少2岁和3岁表达语言能力差的儿童数量，超过75%的维多利亚州儿童在12个月大时参加。这项试验针对的是20%的幼儿，他们最有可能出现表达性语言延迟，因为他们在18个月大时口语词汇量有限或没有。它还旨在减少有行为问题（与语言迟缓密切相关）的儿童人数，确定这种方法的可接受性和成本效益，并确定它是否对处境不利的儿童有不同的好处。

The trial aims to lower the numbers of children with poor expressive language skills at ages 2 and 3 years, through a sustainable early language promotion program linked to the universal Victorian Maternal and Child Health (M and CH) service, attended by more than 75% of Victorian children at 12 months of age. The trial targets the 20% of toddlers most at risk of expressive language delay, by virtue of having limited or no spoken vocabulary at 18 months of age. It also aims to lower the numbers of children with behaviour problems (strongly linked to language delay), to determine the acceptability and cost-effectiveness of the approach, and to determine whether it differentially benefits disadvantaged children.