Abstract
Objective: To elucidate whether the results of an intelligence test at preschool age are predictive of reading difficulty (RD) at school age among very low birth weight infants (VLBWI). Methods: Subjects were 48 Japanese children whose birth weight was <1500 g and who regularly visited a follow-up clinic. All subjects completed the Wechsler Intelligence Scale for Children-III (WISC-III) during the last grade of kindergarten, and four reading tasks during the second to fourth grade of elementary school. All participants had a full-scale intelligence quotient score of 85 or higher. Subjects with a standard deviation reading time score greater than 2.0 in two or more tasks were considered to have RD. We evaluated the associations between each WISC-III score and RD using logistic regression analyses. Furthermore, we performed receiver operating characteristic (ROC) analysis to determine a cutoff WISC-III score predictive of RD. Results: In the mutually-adjusted model, the adjusted odds ratio per 1 score increase of freedom from distractibility (FD) was 0.832 (95% confidence interval: 0.720–0.962). In the ROC analysis, an FD score of <95.5 was chosen as the cutoff value for predicting RD (sensitivity, 0.77; specificity, 0.74). Conclusion: The present study indicated that a lower FD score at preschool age, which was associated with deficits in verbal working memory and attention, is a risk factor for RD at school age among Japanese VLBWI. Further investigation is desired to clarify the cognitive deficits underlying RD in Japanese-speaking preterm children, and to establish appropriate interventions for these children.
| Original language | English |
|---|---|
| Journal | Brain and Development |
| DOIs | |
| Publication status | Accepted/In press - Jan 1 2018 |
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Keywords
- Attention
- Dyslexia
- Japanese
- Preterm
- Reading difficulty
- Verbal working memory
- Very low birth weight infant
- VLBW
ASJC Scopus subject areas
- Pediatrics, Perinatology, and Child Health
- Developmental Neuroscience
- Clinical Neurology
Cite this
Intelligence test at preschool-age predicts reading difficulty among school-aged very low birth weight infants in Japan. / Takeuchi, Akihito; Ogino, Tatsuya; Koeda, Tatsuya; Oka, Makio; Yorifuji, Takashi; Takayanagi, Toshimitsu; Sato, Kazuo; Sugino, Noriko; Bonno, Motoki; Nakamura, Makoto; Kageyama, Misao.
In: Brain and Development, 01.01.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Intelligence test at preschool-age predicts reading difficulty among school-aged very low birth weight infants in Japan
AU - Takeuchi, Akihito
AU - Ogino, Tatsuya
AU - Koeda, Tatsuya
AU - Oka, Makio
AU - Yorifuji, Takashi
AU - Takayanagi, Toshimitsu
AU - Sato, Kazuo
AU - Sugino, Noriko
AU - Bonno, Motoki
AU - Nakamura, Makoto
AU - Kageyama, Misao
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Objective: To elucidate whether the results of an intelligence test at preschool age are predictive of reading difficulty (RD) at school age among very low birth weight infants (VLBWI). Methods: Subjects were 48 Japanese children whose birth weight was <1500 g and who regularly visited a follow-up clinic. All subjects completed the Wechsler Intelligence Scale for Children-III (WISC-III) during the last grade of kindergarten, and four reading tasks during the second to fourth grade of elementary school. All participants had a full-scale intelligence quotient score of 85 or higher. Subjects with a standard deviation reading time score greater than 2.0 in two or more tasks were considered to have RD. We evaluated the associations between each WISC-III score and RD using logistic regression analyses. Furthermore, we performed receiver operating characteristic (ROC) analysis to determine a cutoff WISC-III score predictive of RD. Results: In the mutually-adjusted model, the adjusted odds ratio per 1 score increase of freedom from distractibility (FD) was 0.832 (95% confidence interval: 0.720–0.962). In the ROC analysis, an FD score of <95.5 was chosen as the cutoff value for predicting RD (sensitivity, 0.77; specificity, 0.74). Conclusion: The present study indicated that a lower FD score at preschool age, which was associated with deficits in verbal working memory and attention, is a risk factor for RD at school age among Japanese VLBWI. Further investigation is desired to clarify the cognitive deficits underlying RD in Japanese-speaking preterm children, and to establish appropriate interventions for these children.
AB - Objective: To elucidate whether the results of an intelligence test at preschool age are predictive of reading difficulty (RD) at school age among very low birth weight infants (VLBWI). Methods: Subjects were 48 Japanese children whose birth weight was <1500 g and who regularly visited a follow-up clinic. All subjects completed the Wechsler Intelligence Scale for Children-III (WISC-III) during the last grade of kindergarten, and four reading tasks during the second to fourth grade of elementary school. All participants had a full-scale intelligence quotient score of 85 or higher. Subjects with a standard deviation reading time score greater than 2.0 in two or more tasks were considered to have RD. We evaluated the associations between each WISC-III score and RD using logistic regression analyses. Furthermore, we performed receiver operating characteristic (ROC) analysis to determine a cutoff WISC-III score predictive of RD. Results: In the mutually-adjusted model, the adjusted odds ratio per 1 score increase of freedom from distractibility (FD) was 0.832 (95% confidence interval: 0.720–0.962). In the ROC analysis, an FD score of <95.5 was chosen as the cutoff value for predicting RD (sensitivity, 0.77; specificity, 0.74). Conclusion: The present study indicated that a lower FD score at preschool age, which was associated with deficits in verbal working memory and attention, is a risk factor for RD at school age among Japanese VLBWI. Further investigation is desired to clarify the cognitive deficits underlying RD in Japanese-speaking preterm children, and to establish appropriate interventions for these children.
KW - Attention
KW - Dyslexia
KW - Japanese
KW - Preterm
KW - Reading difficulty
KW - Verbal working memory
KW - Very low birth weight infant
KW - VLBW
UR - http://www.scopus.com/inward/record.url?scp=85047182814&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85047182814&partnerID=8YFLogxK
U2 - 10.1016/j.braindev.2018.05.002
DO - 10.1016/j.braindev.2018.05.002
M3 - Article
C2 - 29793755
AN - SCOPUS:85047182814
JO - Brain and Development
JF - Brain and Development
SN - 0387-7604
ER -