Anderson Peter J, De Luca Cinzia R, Hutchinson Esther, Roberts Gehan, Doyle Lex W
Murdoch Childrens Research Institute, Melbourne, Australia.
Arch Pediatr Adolesc Med. 2010 Apr;164(4):352-6. doi: 10.1001/archpediatrics.2010.20.
To assess the ability of the third edition of the Bayley Scales of Infant and Toddler Development (Bayley-III) to detect developmental delay in 2-year-old children who were extremely preterm and those carried to term.
Prospective cohort study.
The state of Victoria, Australia.
Subjects were consecutive surviving children who were born either at less than 28 weeks' gestational age (extremely preterm) or with less than 1000 g birth weight (extremely low-birth-weight; n = 221) in the state of Victoria, Australia, in 2005 and randomly selected controls who were both carried to term and of normal birth weight (n = 220).
Children were assessed by psychologists blinded to knowledge of group at 2 years of age, corrected for prematurity with the new Bayley-III scale.
Follow-up rates of both cohorts were high (>92%). Mean values for all composite and subtest scores for the extremely preterm/extremely low-birth-weight group were significantly below those of the control group (P < .001), with the magnitude of all group differences being in excess of two-thirds SD. Mean values for the extremely preterm/extremely low-birth-weight group approached the normative mean, but in contrast, the mean values for the control group were higher than expected, with composite scores being between 0.55 and 1.23 SD above the normative mean. Proportions of children with developmental delay were grossly underestimated using the reference values, but were within the expected range when computed relative to the mean (standard deviation) for the controls.
The Bayley-III scale seriously underestimates developmental delay in 2-year-old Australian children.
评估贝利婴幼儿发展量表第三版（Bayley-III）检测2岁极早产儿和足月儿发育迟缓的能力。
前瞻性队列研究。
澳大利亚维多利亚州。
研究对象为2005年在澳大利亚维多利亚州出生的连续存活儿童，其中孕龄小于28周（极早产）或出生体重小于1000克（极低出生体重；n = 221），以及随机选取的足月且出生体重正常的对照儿童（n = 220）。
由对分组情况不知情的心理学家在儿童2岁时进行评估，采用新的Bayley-III量表并校正早产因素。
两个队列的随访率均较高（>92%）。极早产/极低出生体重组所有综合及子测验分数的均值显著低于对照组（P <.001），所有组间差异幅度超过三分之二标准差。极早产/极低出生体重组的均值接近常模均值，但相比之下，对照组的均值高于预期，综合分数比常模均值高出0.55至1.23个标准差。使用参考值时，发育迟缓儿童的比例被严重低估，但相对于对照组的均值（标准差）计算时，比例处于预期范围内。
Bayley-III量表严重低估了2岁澳大利亚儿童的发育迟缓情况。
