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About 5% of children had ADHD without learning disability, 5% had learningdisability without ADHD, and 4% had both ADHD and learning disability
Approximately 9.5% or 5.4 million children 4-17 years of age have been diagnosed with ADHD, as of 2007. Boys, 13.2%, are more likely than girls, 5.6%, to be diagnosed with ADHD
The most common cause of reading, writing and spelling difficulties.
Almost equally affects females and males Almost the same percentage of people from different ethnic and socioeconomic backgrounds have dyslexia Less than 33% of children with reading disabilities receive school services
Percentage of the population that is diagnosed with dyscalculia, a learningdisability of comprehending arithmetic, compared to dyslexia
40-50% of dyslexics show no signs of dyscalculia between 3% and 6% of the population are affected
a neurological disorder that is characterized by writing disabilities and difficulty withthe mechanics of writing
The percentage of primary school students with dysgraphia may increase 4% due to difficulty of handwriting Up to 20% increase in middle schooler students because written compositions become difficult