Department of Phoniatrics, Tampere University Hospital, Tampere, Finland.
Psychology, Faculty of Social Sciences, Tampere University, Tampere, Finland.
Acta Paediatr. 2021 Nov;110(11):3046-3053. doi: 10.1111/apa.16021. Epub 2021 Jul 16.
This study evaluated early speech and language development at 18 and 24 months, and associated factors, based on parental reports.
We followed up the CHILD-SLEEP birth cohort of 1667 Finnish-speaking families, who were randomly recruited in 2011-2013 during routine visits to maternity clinics in the Pirkanmaa Hospital District of Finland. The women were approximately 32 weeks' pregnant at enrolment. Parents reported the size of their child's expressive vocabulary, word combinations, intelligibility, finger-pointing and adherence to instructions. A subsample was studied using the Expressive Language subscale of the Bayley Scales of Infant and Toddler Development, Third Edition.
The children's vocabulary was smaller than previously reported. At 18 months of age, 68.8% of the 997 children had a vocabulary of 20 words or less and 35.7% used about five words at most. At 24 months, 32.4% of the 822 children had a vocabulary of 50 words or less and 18.4% used about 20 words at most. Longer child and parental exposure to electronic media was negatively associated with the size of the child's expressive vocabulary.
Vocabulary size at 18 and 24 months was smaller than previously reported and negatively associated with exposure to electronic media.
本研究通过父母报告评估了 18 个月和 24 个月时的早期言语和语言发展情况及其相关因素。
我们对来自芬兰皮尔卡区医院的 1667 个芬兰语家庭的 CHILD-SLEEP 出生队列进行了随访，这些家庭是在 2011 年至 2013 年期间在常规产检时随机招募的，当时孕妇大约怀孕 32 周。父母报告了孩子表达性词汇量、单词组合、可理解性、用手指指向和遵守指令的情况。一个子样本使用了《贝利婴幼儿发育量表第三版》的表达性语言分量表进行了研究。
孩子的词汇量比之前报道的要小。在 18 个月时，997 名儿童中有 68.8%的词汇量在 20 个词以下，35.7%的儿童最多使用 5 个词。在 24 个月时，822 名儿童中有 32.4%的词汇量在 50 个词以下，18.4%的儿童最多使用 20 个词。儿童和父母接触电子媒体的时间越长，孩子表达性词汇量越小。
18 个月和 24 个月时的词汇量比之前报道的要小，且与接触电子媒体呈负相关。
