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TABLE 4

Prevalence of Developmental Disabilities in Children Aged 3 to 17 Years by Maternal Education, Federal Poverty Level, and Urbanicity

ConditionMaternal Education, %FPL, %Urbanicitya, %
Less Than HSHS or Some CollegeCollege or Greater<200%≥200%UrbanRural
Any developmental disability 17.30 18.09 13.87b,c 19.88 14.63d 16.42 19.05e 
ADHD 7.59 9.97b 7.30c 10.31 8.05d 8.51 11.23e 
ASD 1.42 1.73 1.87 1.81 1.68 1.78 1.57 
Blind or unable to see at all 0.27 0.16b 0.10b 0.23 0.10d 0.15 0.19 
CP 0.23 0.32 0.30 0.37 0.26d 0.30 0.36 
Moderate to profound hearing loss 0.83 0.65 0.48b 0.87 0.44d 0.58 0.84e 
LD 9.66 8.38b 5.29b,c 10.13 5.89d 7.50 8.75e 
ID 1.48 1.12b 0.80b,c 1.48 0.81d 1.06 1.28 
Seizures, past 12 mo 1.00 0.89 0.50b,c 1.06 0.55d 0.75 0.88 
Stuttered or stammered, past 12 mo 3.21 2.05b 1.21b,c 2.95 1.30d 2.08 1.81 
Other developmental delay 4.00 4.62b 4.20 5.04 3.88d 4.32 4.62 
ConditionMaternal Education, %FPL, %Urbanicitya, %
Less Than HSHS or Some CollegeCollege or Greater<200%≥200%UrbanRural
Any developmental disability 17.30 18.09 13.87b,c 19.88 14.63d 16.42 19.05e 
ADHD 7.59 9.97b 7.30c 10.31 8.05d 8.51 11.23e 
ASD 1.42 1.73 1.87 1.81 1.68 1.78 1.57 
Blind or unable to see at all 0.27 0.16b 0.10b 0.23 0.10d 0.15 0.19 
CP 0.23 0.32 0.30 0.37 0.26d 0.30 0.36 
Moderate to profound hearing loss 0.83 0.65 0.48b 0.87 0.44d 0.58 0.84e 
LD 9.66 8.38b 5.29b,c 10.13 5.89d 7.50 8.75e 
ID 1.48 1.12b 0.80b,c 1.48 0.81d 1.06 1.28 
Seizures, past 12 mo 1.00 0.89 0.50b,c 1.06 0.55d 0.75 0.88 
Stuttered or stammered, past 12 mo 3.21 2.05b 1.21b,c 2.95 1.30d 2.08 1.81 
Other developmental delay 4.00 4.62b 4.20 5.04 3.88d 4.32 4.62 

HS, high school.

a

Urban includes urbanized areas of 50 000 or more people and urban clusters of at least 2500 and <50 000 people. All remaining areas are considered rural.

b

Significantly different from children living with mothers with less than an HS education (P < .05).

c

Significantly different from children living with mothers with an HS or some college education (P < .05).

d

Significantly different from children living in families with FPL <200% (P < .05).

e

Significantly different from children living in an urban setting (P < .05).

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