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TABLE 1

Medical Problems Common in Down Syndrome

Condition%
Hearing problems 75 
Vision problems 60 
Cataracts 15 
Refractive errors 50 
Obstructive sleep apnea 50–75 
Otitis media 50–70 
Congenital heart disease 40–50 
Hypodontia and delayed dental eruption 23 
Gastrointestinal atresias 12 
Thyroid disease 4–18 
Seizures 1–13 
Hematologic problems  
    Anemia 
    Iron deficiency 10 
    Transient myeloproliferative disorder 10 
    Leukemia 
Celiac disease 
Atlantoaxial instability 1–2 
Autism 
Hirschsprung disease <1 
Condition%
Hearing problems 75 
Vision problems 60 
Cataracts 15 
Refractive errors 50 
Obstructive sleep apnea 50–75 
Otitis media 50–70 
Congenital heart disease 40–50 
Hypodontia and delayed dental eruption 23 
Gastrointestinal atresias 12 
Thyroid disease 4–18 
Seizures 1–13 
Hematologic problems  
    Anemia 
    Iron deficiency 10 
    Transient myeloproliferative disorder 10 
    Leukemia 
Celiac disease 
Atlantoaxial instability 1–2 
Autism 
Hirschsprung disease <1 
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