Department of Clinical and Experimental Medicine, Division of Children's and Women's Health, Linköping University, Linköping, Sweden.
Department of Paediatrics, Ryhov County Hospital, Jönköping County Council, Jonkoping, Sweden.
Acta Paediatr. 2018 Nov;107(11):1937-1945. doi: 10.1111/apa.14377. Epub 2018 May 21.
We evaluated the development of reading skills in very low birthweight (VLBW) children and controls at 8-10 years of age.
This study was part of a longitudinal study of VLBW infants born between January 1998 and December 1999 in Sweden. We recruited 49 VLBW children and 44 sex and age-matched full-term controls when they started school at the age of seven and tested them using identical methods for decoding, rapid naming ability, reading comprehension, and spelling and cognitive skills at about eight and 10 years of age. Univariate analysis of variance was performed to assess the effects of VLBW on reading performance at each age and to evaluate the differences between the groups and ages.
Very low birthweight children scored significantly lower in all domains of reading at 7.8 ± 0.3 years, but the performance gap had narrowed by 9.8 ± 0.3 years. Significant catch-up gains were found in phonological awareness, rapid naming ability and reading comprehension. The differences between the groups were minor at 10 years, when controlled for non-verbal cognition.
Very low birthweight children demonstrated worse reading performance at eight years of age than term-born controls. The gap in reading skills between the groups had largely narrowed two years later.
我们评估了极低出生体重（VLBW）儿童和对照组在 8-10 岁时阅读技能的发展情况。
本研究是瑞典 1998 年 1 月至 1999 年 12 月间出生的 VLBW 婴儿的纵向研究的一部分。当他们在 7 岁时开始上学时，我们招募了 49 名 VLBW 儿童和 44 名性别和年龄匹配的足月对照组，并使用相同的方法在大约 8 岁和 10 岁时对他们进行解码、快速命名能力、阅读理解、拼写和认知技能的测试。采用单变量方差分析评估 VLBW 对每个年龄段阅读表现的影响，并评估组间和年龄间的差异。
VLBW 儿童在 7.8 ± 0.3 岁时所有阅读领域的得分均显著较低，但到 9.8 ± 0.3 岁时差距已缩小。在语音意识、快速命名能力和阅读理解方面，有明显的追赶性提高。当控制非语言认知时，两组在 10 岁时的差异较小。
VLBW 儿童在 8 岁时的阅读表现明显低于足月对照组。两年后，两组之间的阅读技能差距已大大缩小。
