J Korean Neuropsychiatr Assoc.  2018 Nov;57(4):332-338. 10.4306/jknpa.2018.57.4.332.

Prevalence of Reading and Mathematical Learning Disabilities in Korean School-Aged Children of Jeju Region

• Yoo HK
• Huh H
• Hong IH
• Kim JH
• Kim HJ
• Cho S
• Yang SJ
• Jung J

• KMID: 2426862
• DOI: http://doi.org/10.4306/jknpa.2018.57.4.332

Abstract

OBJECTIVES
This study investigated the prevalence of reading and mathematical learning disabilities of students at primary schools in Jeju Island, South Korea. We examined major causes of learning disabilities including reading disorder, mathematical disorder, attention deficit, and other causes including socioemotional factors.
METHODS
We conducted screening processes to 659 participants (340 male, 51%) in 4 elementary schools in Jeju Island. To identify the causes of learning problems, 84 children were administered tests such as the Korean-Wechsler Intelligence Scale for Children-fourth edition, the Comprehensive Learning Test-Reading/Math, and the Comprehensive Attention Test.
RESULTS
This study found that 13% of elementary school students in the Jeju region had learning disabilities. Among learning disabilities, specific reading and mathematical disorders accounted for 9% of study subjects. In addition, 2% of participants had intellectual impairment and 1% had other causes such as socioemotional factors. 65% of children with learning disabilities and 74% of children with reading or mathematic disorders had concurrent attention deficit disorder. 68% of children with reading disorders also had comorbid mathematical disorder.
CONCLUSION
The prevalence, causes, and comorbidity of reading and mathematical learning disabilities of students in Jeju Island, South Korea did not differ from those in foreign countries. Because most learning disabilities are complex, comprehensive evaluations and tailored interventions are necessary to help children with learning disabilities.

Keyword

Learning disabilities; Learning disorders; Dyslexia; Dyscalculia; Prevalence; Epidemiology

MeSH Terms

Attention Deficit Disorder with Hyperactivity
Child*
Comorbidity
Dyscalculia
Dyslexia
Epidemiology
Humans
Intelligence
Korea
Learning Disorders*
Learning*
Male
Mass Screening
Mathematics
Prevalence*

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