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

这项试验旨在通过一项可持续的早期语言促进计划，减少2岁和3岁时语言表达能力不佳的儿童的数量，该计划与维多利亚州普遍的母婴健康(M和CH)服务有关，超过75%的维多利亚州12个月大的儿童参加了该服务。这项试验针对的是20%的幼儿，由于18个月大时口语词汇量有限或没有口语词汇量，他们最有可能出现语言表达延迟。它还旨在减少有行为问题的儿童的数量(与语言延迟密切相关)，确定这一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.