CDC-Data-2025/DQS_NHIS_Children_Summary_Statistics_Footnotes.csv

1	dataset_shortname	footnote_id_list	fn_type	fn_code	fn_text
2	NHISChildren	SC_NHISC02	Source		National Center for Health Statistics, National Health Interview Survey, Summary Health Statistics for Children 2019-2023.
3	NHISChildren	FN_NHISC01	Footnote		Respondents were asked to report the age of each family member as of the date of interview.
4	NHISChildren	FN_NHISC02	Footnote		Race is based on a respondent's description of the child's racial background, regardless of Hispanic or Latino origin. More than one race may be reported. "Only" indicates only a single race group. More information on the National Health Interview Survey child data, methods, and definitions is available from: https://wwwn.cdc.gov/NHISDataQueryTool/SHS_child/SHS_Tech_Notes.pdf.
5	NHISChildren	FN_NHISC03	Footnote		Race and Hispanic origin is divided into total categories "All races, Hispanic" and "All races, non-Hispanic." "All races, Hispanic" refers to children who are of Hispanic or Latino origin and may be of any race or combination of races. "All races, Hispanic" includes the subset "All races, Hispanic, Mexican." "All races, non-Hispanic" refers to children who are not of Hispanic or Latino origin, regardless of race. "All races, non-Hispanic" is further divided into "White only, non-Hispanic," "Black only, non-Hispanic" and "Other races, non-Hispanic." Estimates for non-Hispanic people of races other than "White only, non-Hispanic" and "Black only, non-Hispanic" are combined in the "Other races, non-Hispanic" category. More information on the National Health Interview Survey child data, methods, and definitions is available from: https://wwwn.cdc.gov/NHISDataQueryTool/SHS_child/SHS_Tech_Notes.pdf.
6	NHISChildren	FN_NHISC04	Footnote		Refers to parents living in the household. "Parent" can include biological, adoptive, or step. Legal guardians and foster relationships are classified in "At least 1 related or unrelated adult (not a parent)."
7	NHISChildren	FN_NHISC05	Footnote		Parental employment reflects number of parents living in the household and their working status.
8	NHISChildren	FN_NHISC06	Footnote		FPL is Federal Poverty Level. Percent of poverty level is based on family income and family size and composition using U.S. Census Bureau poverty thresholds. Family income was imputed when missing.
9	NHISChildren	FN_NHISC07	Footnote		Based on a series of categories. Children with more than one type of health insurance were assigned to the first appropriate category in the following order: private, Medicaid or other public, other coverage, or uninsured. "Uninsured" includes children who had no coverage as well as those who had only Indian Health Service coverage or had only a private plan that paid for one type of service such as dental or vision care.
10	NHISChildren	FN_NHISC23	Footnote		Based on the question, "During the past 12 months, how many times has [child's name] gone to a hospital emergency room about [his/her] health? (This includes emergency room visits that resulted in a hospital admission.)"
11	NHISChildren	FN_NHISC08	Footnote		For children aged 2-4, those with "a lot of difficulty" or with responses of "cannot do at all" for at least one of the questions asking about difficulty seeing, hearing, walking, dexterity, communication, learning, and playing, or who could not control behavior at all are considered with disability. For children aged 5-17, those with "a lot of difficulty" or with responses of "cannot do at all" for at least one of the questions asking about difficulty seeing, hearing, walking, self-care, communication, learning, remembering, concentrating, accepting change, controlling behavior, making friends or who had a response of "daily" to questions asking how often the sample child feels anxious, nervous, or worried or feels depressed are considered with disability. The remaining sample children, that is those with "some difficulty" or "no difficulty" for at least one question (and did not have responses of "a lot of difficulty" or "cannot do at all" for any of the questions) are classified as without disability. Those with responses of "don't know" or "refused" to all questions are excluded.
12	NHISChildren	FN_NHISC09	Footnote		MSA is metropolitan statistical area. Large MSAs have a population size of 1 million or more; small MSAs have a population size of less than 1 million. "Not in MSA" consists of persons not living in a metropolitan statistical area. More information on MSA is available from: https://wwwn.cdc.gov/nhisdataquerytool/shs_child/shs_tech_notes.pdf.
13	NHISChildren	FN_NHISC10	Footnote		In the geographic classification of the U.S. population, states are grouped into four regions used by the U.S. Census Bureau. Northeast: Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, and Pennsylvania. Midwest: Ohio, Indiana, Illinois, Michigan, Wisconsin, Minnesota, Iowa, Missouri, North Dakota, South Dakota, Nebraska, and Kansas. South: Delaware, Maryland, District of Columbia, Virginia, West Virginia, North Carolina, South Carolina, Georgia, Florida, Kentucky, Tennessee, Alabama, Mississippi, Arkansas, Louisiana, Oklahoma, and Texas. West: Montana, Idaho, Wyoming, Colorado, New Mexico, Arizona, Utah, Nevada, Washington, Oregon, California, Alaska, and Hawaii.
14	NHISChildren	FN_NHISC11	Footnote		The 2013 National Center for Health Statistics Urban-Rural Classification Scheme for Counties groups U.S. counties and county-equivalent entities into six urban-rural categories: large central metro, large fringe metro, medium metro, small metro, micropolitan, and non-core. Medium and small metro are collapsed into a single group and micropolitan and non-core are collapsed into a single group (nonmetropolitan). More information on Urban-Rural classification is available from: https://www.cdc.gov/nchs/data_access/urban_rural.htm.
15	NHISChildren	FN_NHISC12	Footnote		The Social Vulnerability Index (SVI) uses U.S. Census Bureau data to determine the social vulnerability of every census tract. The index was developed at the Centers for Disease Control and Prevention (CDC) by the Agency for Toxic Substance and Disease Registry's (ATSDR) Geospatial Research, Analysis, and Services Program (GRASP). SVI ranks each U.S. census tract on 15 social factors, which are then grouped into four related themes: socioeconomic status, household composition and disability, racial and ethnic minority status and language, and housing type and transportation. SVI indicates the relative vulnerability of every census tract as a percentile ranking ranging from 0 to 1, with higher values indicating greater vulnerability. The overall tract summary ranking variable for 2018 was used to categorize four quartiles of vulnerability: Scores from 0 to 0.2500 are categorized as "little to no social vulnerability," 0.2501-0.500 are "low social vulnerability," 0.5001-0.7500 are "medium social vulnerability," and 0.7501-1.0 are "high social vulnerability." More information on SVI is available from: https://www.atsdr.cdc.gov/placeandhealth/svi/index.html.
16	NHISChildren	NA_NHISC01	Flag	**	While the estimate meets National Center for Health Statistics standards of reliability, its complement does not. The compliment is the set of all outcomes that are not the event of interest. This is represented by a double asterisk flag (**).
17	NHISChildren	NA_NHISC02	Flag	-	Quantity is zero. This is represented by a single dash flag (-).
18	NHISChildren	NA_NHISC03	Flag	*	If a single asterisk (*) is shown in the table, estimates do not meet National Center for Health Statistics standards of reliability and will not appear in the chart.
19	NHISChildren	NA_NHISC04	Flag	****	Rotating content, indicator is not available for time period. This is represented by a four asterisk flag (****).
20	NHISChildren	NA_NHISC05	Flag	- - -	Data not available. This is represented by a triple dash flag (- - - ).
21	NHISChildren	FN_NHISC13	Footnote		Based on the question, "Has a doctor or other health professional ever told you that [child's name] had asthma?"
22	NHISChildren	FN_NHISC14	Footnote		Based on the question, "Does [child's name] still have asthma?" Question is asked of sample children 0-17 who were told by a doctor or other health professional that they ever had asthma.
23	NHISChildren	FN_NHISC15	Footnote		Based on the question, "Has a doctor or other health professional ever told you that [child's name] had attention deficit hyperactivity disorder (ADHD) or attention deficit disorder (ADD)?"
24	NHISChildren	FN_NHISC16	Footnote		Based on the question, "Has a representative from a school or a health professional ever told you that [child's name] had a learning disability?"
25	NHISChildren	FN_NHISC17	Footnote		Based on the question, "Would you say [child's name]'s health in general is excellent, very good, good, fair, or poor?"
26	NHISChildren	FN_NHISC18	Footnote		Based on the question, "During the past 12 months, about how many days of school did [child's name] miss because of illness, injury, or disability?"
27	NHISChildren	FN_NHISC19	Footnote		Based on the question, "Is there a place that [child's name] usually goes if [he/she] is sick and needs health care?"
28	NHISChildren	FN_NHISC20	Footnote		Based on the question, "About how long has it been since [child's name] last saw a doctor or other health professional about [his/her] health?"
29	NHISChildren	FN_NHISC21	Footnote		Children are considered uninsured if they did not have private health insurance, Medicare, Medicaid, Children's Health Insurance Program (CHIP), a state-sponsored health plan, other government programs, or military health plan (includes TRICARE, VA, and CHAMP-VA) at the time of interview. "Uninsured" includes children who had no coverage as well as those who had only Indian Health Service coverage or had only a private plan that paid for one type of service such as dental or vision care.
30	NHISChildren	FN_NHISC22	Footnote		Based on the question, "During the past 12 months, has medical care been delayed for [child's name] because of the cost?"
31	NHISChildren	FN_NHISC24	Footnote		Based on the question, "Does [child's name] currently have a special education or early intervention plan? (Consider special education or early intervention plans received during the past school year.)"
32	NHISChildren	FN_NHISC25	Footnote		Based on the question, "During the past 12 months, how many times has [child's name] gone to an urgent care center or clinic in a drug store or grocery store about [his/her] health? (Urgent care centers and clinics in drug stores or grocery stores are places where you do not need to make an appointment ahead of time, and do not usually see the same health care provider at each visit. This is different from a hospital emergency room.)"
33	NHISChildren	FN_NHISC26	Footnote		Based on questions that ascertain among those with a visit in the past 12 months, "Was this a wellness visit, physical, or general purpose check-up? " or a response of within the past year to the question "About how long has it been since [child's name] last saw a doctor or other health professional for a well baby/child visit, physical, or general purpose check-up?"
34	NHISChildren	FN_NHISC27	Footnote		Based on the question, "At any time in the past 12 months, did [child's name] take prescription medication?"
35	NHISChildren	FN_NHISC28	Footnote		Based on the question, "Does [child's name] receive these services to help with [his/her] emotions, concentration, behavior, or mental health?" Question is asked of sample children 0-17 who have received services in the past 12 months.
36	NHISChildren	FN_NHISC29	Footnote		Based on the question, "There are two types of flu vaccinations. One is a shot and the other is a spray, mist, or drop in the nose. During the past 12 months, has [child's name] had a flu vaccination? (A flu vaccination is usually given in the fall and protects against influenza for the flu season.)" Children aged 6 months are excluded from this estimate.
37	NHISChildren	FN_NHISC30	Footnote		Based on the question, "How often does [child's name] seem very anxious, nervous, or worried? Would you say: daily, weekly, monthly, a few times a year, or never?"
38	NHISChildren	NT_NHISC02	Note		More information on the National Health Interview Survey child data, methods, and definitions is available from: https://wwwn.cdc.gov/NHISDataQueryTool/SHS_child/SHS_Tech_Notes.pdf.
39	NHISChildren	NT_NHISC999	Note		In 2019, the NHIS questionnaire was redesigned and other changes were made to weighting and design methodology. Data for 2019 and later have not been fully evaluated for comparability with earlier years. While annual estimates are available for this topic for 2018 and earlier, they are not presented here. For more information on the 2019 NHIS redesign and evaluation of the redesign on selected indicators, see Redesign Notes, available from: https://www.cdc.gov/nchs/nhis/2019_quest_redesign.htm.