Department of Pediatrics, Turku University Hospital, Turku, Finland.
Child Neuropsychol. 2012;18(1):92-103. doi: 10.1080/09297049.2011.589378. Epub 2011 Jul 14.
Our objective was to study the prereading skills of very-low-birth-weight (VLBW; ≤ 1500 g) prematurely born children at the age of five years. A regional cohort of 89 VLBW children and 152 full-term (FT) born children was assessed for letter knowledge, phonological processing, and speeded naming. Full-scale IQ (FSIQ) was assessed using a short version of WPPSI-R. The associations of parental and neonatal factors, and FSIQ with prereading skills were assessed. VLBW group had poorer prereading skills, and there were more VLBW children at-risk (performing < -1 SD) compared to FT children in phonological processing (23% vs. 9%, p = .002), letter knowledge (27% vs. 14%, p = .017), and the accuracy of speeded naming (26% vs. 13%, p = .020). VLBW children had lower average FSIQ and Performance IQ (both comparisons p < .001) than FT controls, but Verbal IQ did not differ. When FSIQ was used as a covariate, VLBW children did not differ from the FT group in prereading skills indicating that they are at risk for more global developmental problems. Lower parental level of education as well as parent's reading problems were negatively associated with VLBW children's prereading skills. Positively, about 75% of VLBW children performed within the normal range in each individual prereading skill.
我们的目的是研究极低出生体重（VLBW；≤1500 克）早产儿在五岁时的阅读前技能。对一个地区性队列中的 89 名 VLBW 儿童和 152 名足月（FT）出生的儿童进行了字母知识、语音处理和快速命名能力的评估。使用 WPPSI-R 的简短版本评估了全面智商（FSIQ）。评估了父母和新生儿因素与阅读前技能以及 FSIQ 的关联。VLBW 组的阅读前技能较差，与 FT 儿童相比，存在更多的 VLBW 儿童处于风险中（表现为<-1SD），在语音处理（23%比 9%，p=0.002）、字母知识（27%比 14%，p=0.017）和快速命名的准确性（26%比 13%，p=0.020）方面。VLBW 儿童的平均 FSIQ 和操作智商（这两个比较的 p 值均<0.001）均低于 FT 对照组，但言语智商无差异。当将 FSIQ 用作协变量时，VLBW 儿童与 FT 组在阅读前技能方面没有差异，表明他们存在更多的全面发育问题风险。较低的父母教育水平以及父母的阅读问题与 VLBW 儿童的阅读前技能呈负相关。积极的是，大约 75%的 VLBW 儿童在每个单项阅读前技能中都表现正常。
