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TABLE 1

The NHIS Questions on Developmental Disabilities, 2009–2017

ConditionSurvey Question
Attention-deficit/hyperactivity disorder (ADHD) “Has a doctor or health professional ever told you that [survey child] had attention-deficit/hyperactivity disorder (ADHD) or attention deficit disorder (ADD)?” 
Autism spectrum disorder 2009–2010: “Has a doctor or health professional ever told you that [survey child] had autism?”a 
2011–2013: “Has a doctor or health professional ever told you that [survey child] had autism or autism spectrum disorder?”a 
2014–2017: “Has a doctor or health professional ever told you that [survey child] had autism, Asperger’s disorder, pervasive developmental disorder, or autism spectrum disorder?” 
Blindness “Is [survey child] blind or unable to see at all?” 
Cerebral palsy “Has a doctor or health professional ever told you that [survey child] had cerebral palsy?”a 
Intellectual disability 2009–2010: “Has a doctor or health professional ever told you that [survey child] had mental retardation?” 
2011–2017: “Has a doctor or health professional ever told you that [survey child] had an intellectual disability, also known as mental retardation?” 
Learning disability “Has a representative from the school or a health professional ever told you that [survey child] has a learning disability?” 
Moderate to profound hearing loss “Which statement best describes [survey child]’s hearing without a hearing aid: Excellent, good, a little trouble hearing, moderate trouble, a lot of trouble, or is [survey child] deaf?”b 
Other developmental delay “Has a doctor or health professional ever told you that [survey child] had any other developmental delay?” 
Seizures “During the past 12 months, has [survey child] had seizures?” 
Stuttering or stammering “During the past 12 months, has [survey child] had stuttering or stammering?” 
ConditionSurvey Question
Attention-deficit/hyperactivity disorder (ADHD) “Has a doctor or health professional ever told you that [survey child] had attention-deficit/hyperactivity disorder (ADHD) or attention deficit disorder (ADD)?” 
Autism spectrum disorder 2009–2010: “Has a doctor or health professional ever told you that [survey child] had autism?”a 
2011–2013: “Has a doctor or health professional ever told you that [survey child] had autism or autism spectrum disorder?”a 
2014–2017: “Has a doctor or health professional ever told you that [survey child] had autism, Asperger’s disorder, pervasive developmental disorder, or autism spectrum disorder?” 
Blindness “Is [survey child] blind or unable to see at all?” 
Cerebral palsy “Has a doctor or health professional ever told you that [survey child] had cerebral palsy?”a 
Intellectual disability 2009–2010: “Has a doctor or health professional ever told you that [survey child] had mental retardation?” 
2011–2017: “Has a doctor or health professional ever told you that [survey child] had an intellectual disability, also known as mental retardation?” 
Learning disability “Has a representative from the school or a health professional ever told you that [survey child] has a learning disability?” 
Moderate to profound hearing loss “Which statement best describes [survey child]’s hearing without a hearing aid: Excellent, good, a little trouble hearing, moderate trouble, a lot of trouble, or is [survey child] deaf?”b 
Other developmental delay “Has a doctor or health professional ever told you that [survey child] had any other developmental delay?” 
Seizures “During the past 12 months, has [survey child] had seizures?” 
Stuttering or stammering “During the past 12 months, has [survey child] had stuttering or stammering?” 

Questions about intellectual disability, blindness, cerebral palsy, hearing loss, intellectual disability, seizures, and any other development delay are asked of children of all ages (0–17). Questions about ADHD, autism spectrum disorder, stuttering and/or stammering are asked of children 2–17 years of age.

a

Condition listed as part of a checklist with several conditions included. Respondents were asked whether their child had any of the conditions, and if so, which specifically.

b

In 2014, respondents were given the instruction to consider their child’s hearing without the use of hearing aids or other listening devices before being asked “Which statement best describes your child’s hearing?” In all years, moderate to profound hearing loss included the categories of deaf, a lot of trouble [hearing], or moderate trouble [hearing].

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