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TABLE 2

Prevalence of Developmental Disabilities in Children Aged 3 to 17 Years by Age Group, Sex, and Race and Ethnicity

ConditionTotal, %Age Group, %Sex, %Race and Ethnicity, %
3–5 y6–11 y12–17 yBoysGirlsNon-Hispanic WhiteNon-Hispanic BlackNon-Hispanic OtherHispanic
Any developmental disability 16.93 10.55 17.35a 19.73a,b 21.55 12.11c 18.47 19.02 12.67d,e 13.88d,e,f 
ADHD 9.04 2.13 9.26a 12.30a,b 12.44 5.48c 10.74 9.85d 6.59d,e 5.66d,e,f 
ASD 1.74 1.68 1.75 1.75 2.66 0.78c 1.95 1.54d 1.77 1.34d,f 
Blind or unable to see at all 0.16 0.10 0.19 0.16 0.15 0.17 0.14 0.17 0.14 0.20 
CP 0.31 0.28 0.28 0.35 0.40 0.21c 0.32 0.42 0.32 0.22 
Moderate to profound hearing loss 0.63 0.45 0.73a 0.62 0.69 0.56 0.68 0.63 0.68 0.50 
LD 7.74 3.30 8.02a 9.71a,b 9.56 5.85c 8.03 9.10d 5.79d,e 7.07d,e,f 
ID 1.10 0.63 1.03a 1.41a,b 1.41 0.78c 1.05 1.35 0.90 1.14 
Seizures, past 12 mo 0.77 1.07 0.68a 0.71a 0.81 0.73 0.72 0.91 0.55e 0.89f 
Stuttered or stammered, past 12 mo 2.02 2.73 2.26a 1.43a,b 2.75 1.27c 1.55 3.40d 1.41e 2.53d,e,f 
Other developmental delay 4.38 4.67 4.70 3.92a,b 5.49 3.22c 4.90 4.44 3.81d 3.39d,e 
ConditionTotal, %Age Group, %Sex, %Race and Ethnicity, %
3–5 y6–11 y12–17 yBoysGirlsNon-Hispanic WhiteNon-Hispanic BlackNon-Hispanic OtherHispanic
Any developmental disability 16.93 10.55 17.35a 19.73a,b 21.55 12.11c 18.47 19.02 12.67d,e 13.88d,e,f 
ADHD 9.04 2.13 9.26a 12.30a,b 12.44 5.48c 10.74 9.85d 6.59d,e 5.66d,e,f 
ASD 1.74 1.68 1.75 1.75 2.66 0.78c 1.95 1.54d 1.77 1.34d,f 
Blind or unable to see at all 0.16 0.10 0.19 0.16 0.15 0.17 0.14 0.17 0.14 0.20 
CP 0.31 0.28 0.28 0.35 0.40 0.21c 0.32 0.42 0.32 0.22 
Moderate to profound hearing loss 0.63 0.45 0.73a 0.62 0.69 0.56 0.68 0.63 0.68 0.50 
LD 7.74 3.30 8.02a 9.71a,b 9.56 5.85c 8.03 9.10d 5.79d,e 7.07d,e,f 
ID 1.10 0.63 1.03a 1.41a,b 1.41 0.78c 1.05 1.35 0.90 1.14 
Seizures, past 12 mo 0.77 1.07 0.68a 0.71a 0.81 0.73 0.72 0.91 0.55e 0.89f 
Stuttered or stammered, past 12 mo 2.02 2.73 2.26a 1.43a,b 2.75 1.27c 1.55 3.40d 1.41e 2.53d,e,f 
Other developmental delay 4.38 4.67 4.70 3.92a,b 5.49 3.22c 4.90 4.44 3.81d 3.39d,e 
a

Significantly different from children ages 3–5 (P < .05).

b

Significantly different from children ages 6–11 (P < .05).

c

Significantly different from boys (P < .05).

d

Significantly different from Non-Hispanic white children (P < .05).

e

Significantly different from Non-Hispanic black children (P < .05).

f

Significantly different from Non-Hispanic other children (P < .05).

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