The prevalence of co-occurring difficulties with dyslexia is between 12% and 18%, while the prevalence of co-occurring difficulties with specific reading comprehension difficulties is considerably more common–between 14% and 28%.
Tíðni samhliða raskana með lesblindu (dyslexíu) er á milli 12% og 18% en tíðni samhliða raskana með sértækum lesskilningserfiðleikum er töluvert algengari eða á milli 14% og 28%.