This study assessed rates of learning disabilities (LD) by several psychometric definitions in children with epilepsy and identified risk factors. Participants (N = 173, ages 8-15 years) completed IQ screening, academic achievement testing, and structured interviews. Children with significant head injury, chronic physical conditions, or mental retardation were excluded. Using an IQ-achievement discrepancy definition, 48% exceeded the cutoff for LD in at least one academic area; using lowachievement definitions, 41% to 62% exceeded cutoffs in at least one academic area. Younger children with generalized nonabsence seizures were at increased risk for math LD using the IQachievement discrepancy definition; age of seizure onset and attention-deficit/hyperactivity disorder (ADHD) were risk factors for reading and math LD using low-achievement definitions. Writing was the most common domain affected, but neither ADHD nor seizure variables reliably identified children at risk for writing LD. Although children with earlier seizure onset, generalized nonabsence seizures, and comorbid ADHD appear to be at increased risk for some types of LD by some definitions, these findings largely suggest that all children with epilepsy should be considered vulnerable to LD. A diagnosis of epilepsy (even with controlled seizures and less severe seizure types) should provide sufficient cause to screen school-age children for LD and comorbid ADHD. Keywords underachievement; epilepsy; IQ-acheivement discrepancies; writing; seizures assessment identification; attention-deficit/hyperactivity disorder (ADHD) One percent of children will develop epilepsy by 20 years of age (Hauser, 1994). Children with epilepsy are at greater risk for academic difficulties compared to healthy children and compared to those with many other chronic illnesses of childhood (Austin, Huberty, Huster, & Dunn, 1998;Fowler, Johnson, & Atkinson, 1985;Westbrook, Silver, Coupey, & Shinnar, 1991). Furthermore, children with epilepsy are less successful than their peers without epilepsy at obtaining gainful employment as adults (Dodrill & Clemmons, 1984;Sillanpää, Jalava, Kaleva, & Shinnar, 1998). Although many studies have documented that children with epilepsy tend to have difficulties in school, it is unclear how many of these children would meet criteria for learning disabilities (LD) or for obtaining services.
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LD ScreeningWith the implementation of the Education for All Handicapped Children Act of 1975, the U.S. Office of Education provided an operational definition of LD that required a "severe discrepancy between achievement and intellectual ability in one or more … areas" of achievement (Assistance to States for Education of Handicapped Children: Procedures for Evaluating Specific Learning Disabilities, 1977). The stipulation of a severe discrepancy between achievement and IQ was retained in the Individuals with Disabilities Education Act (IDEA) amendments of 1997. The majority of state definitions have included a discrepancy criterion fo...