TY - JOUR
T1 - Reading difficulty in school-aged very low birth weight infants in Japan
AU - Takeuchi, Akihito
AU - Koeda, Tatsuya
AU - Takayanagi, Toshimitsu
AU - Sato, Kazuo
AU - Sugino, Noriko
AU - Bonno, Motoki
AU - Kada, Akiko
AU - Nakamura, Makoto
AU - Kageyama, Misao
N1 - Publisher Copyright:
© 2016 The Japanese Society of Child Neurology
PY - 2016
Y1 - 2016
N2 - Objective To investigate the prevalence of and the perinatal risk factors related to reading difficulty in school-aged very low birth weight infants (VLBWI) with normal intelligence. Methods Subjects were 79 Japanese children in the second to fourth grade of elementary school who had been born at very low birth weight and who regularly visited a follow-up clinic at one of four hospitals. All members had a full-scale IQ score of 80 or higher. Perinatal information was obtained retrospectively from medical records. Each subject underwent four reading tasks, testing monomoratic syllable reading, word reading, non-word reading and short sentence reading. Subjects with an SD reading time score greater than 2.0 in two or more tasks were considered to have reading difficulty (RD). Furthermore we investigated the relations between RD and perinatal factors using logistic regression analysis adjusted for potential confounding factors. Results Twenty-five (31.6%) out of 79 subjects had RD. We discovered that treated retinopathy of prematurity (tRoP) was a significant risk factor (adjusted OR = 5.80, 95% confidence interval = 1.51–22.33). Conclusion The rate of RD in school-aged VLBWI was higher than the estimated prevalence of dyslexia in Japan. Even in children with normal intelligence, long-term developmental follow-up including support for reading skills is necessary for VLBWI. Further investigation is desired to elucidate the relations between visual problems and RD in school-aged children.
AB - Objective To investigate the prevalence of and the perinatal risk factors related to reading difficulty in school-aged very low birth weight infants (VLBWI) with normal intelligence. Methods Subjects were 79 Japanese children in the second to fourth grade of elementary school who had been born at very low birth weight and who regularly visited a follow-up clinic at one of four hospitals. All members had a full-scale IQ score of 80 or higher. Perinatal information was obtained retrospectively from medical records. Each subject underwent four reading tasks, testing monomoratic syllable reading, word reading, non-word reading and short sentence reading. Subjects with an SD reading time score greater than 2.0 in two or more tasks were considered to have reading difficulty (RD). Furthermore we investigated the relations between RD and perinatal factors using logistic regression analysis adjusted for potential confounding factors. Results Twenty-five (31.6%) out of 79 subjects had RD. We discovered that treated retinopathy of prematurity (tRoP) was a significant risk factor (adjusted OR = 5.80, 95% confidence interval = 1.51–22.33). Conclusion The rate of RD in school-aged VLBWI was higher than the estimated prevalence of dyslexia in Japan. Even in children with normal intelligence, long-term developmental follow-up including support for reading skills is necessary for VLBWI. Further investigation is desired to elucidate the relations between visual problems and RD in school-aged children.
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U2 - 10.1016/j.braindev.2016.04.013
DO - 10.1016/j.braindev.2016.04.013
M3 - Article
C2 - 27177983
AN - SCOPUS:84975127230
SN - 0387-7604
VL - 38
SP - 800
EP - 806
JO - Brain and Development
JF - Brain and Development
IS - 9
ER -