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Survey Items: K3Q01;K3Q02 (called instype in the public use data set)
Denominator: Children age 0-17 years
Numerator: Public insurance; Private insurance; Currently uninsured
Revisions and Changes: Same as the 2007 and 2003 NSCH; may compare across survey years with special attention to the addition of cell phones in the 2011/12 NSCH sample.
Additional Notes: Indicator 3.3 is derived from two questions: whether the child is currently insured (K3Q01); and whether currently insured children have public or private coverage (K3Q02). Question K3Q01 defines health insurance as including "health insurance, prepaid plans such as HMOs, or government plans such as Medicaid." In K3Q02 public insurance is defined as "Medicaid or the State Children's Health Insurance Program, S-CHIP" and names the Medicaid and/or SCHIP programs for the state the child resides in. Children who are insured but do not have public insurance are coded as having private insurance coverage.
Treatment of Unknown Values: Unknown values (responses coded as 'refused', 'don't know', or system missing) are not included in the denominator when calculating prevalence estimates and weighted population counts displayed in the data query results table. In nearly every case, the proportion of unknown values is less than 1% and the exclusion of these values does not change the prevalence estimates (%) and only marginally affects the weighted population counts (Weighted Est.). Exceptions are noted in the form of a “Data Alert” at the bottom of a results table.
History and Development: The Maternal and Child Health Bureau leads the development of the NSCH survey and indicators, in collaboration with the National Center for Health Statistics (NCHS) and a national technical expert panel. The expert panel includes representatives from other federal agencies, state Title V leaders, family organizations, and child health researchers. Previously validated questions and scales are used when available. Respondents’ cognitive understanding of the survey questions is assessed during the pretest phase and revisions made as required. All final data components are verified by NCHS and DRC/CAHMI staff prior to public release. The samples in 2003 and 2007 were drawn by random digit dial telephone sampling. The 2011/12 survey included the addition of cell phones to the sample. This has implications for the comparability of items between 2007 and 2011/12. More information can be found in the “Learn About the Surveys” section of this website.
C.I. = 95% Confidence Interval. Percentages and population estimates (Pop.Est.) are weighted to represent child population in US. Estimates based on sample sizes too small to meet standards for reliability or precision. The relative standard error is greater than 30%.
DATA ALERT: CSHCN Status is determined using a validated instrument for identification of children with special health care needs as defined by the federal Maternal and Child Health Bureau. The CSHCN Screener asks whether a child currently experiences a health consequence and, if so, whether that specific health consequence is due to a medical, behavioral, or other type of health condition that has lasted or is expected to last 12 months or longer. For more information, email cahmi@ohsu.edu.
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With funding and direction from the Maternal and Child Health Bureau, the National Survey of Children’s Health was conducted by the Centers for Disease Control and Prevention’s National Center for Health Statistics. CAHMI is responsible for the analyses, interpretations, presentations and conclusions included on this site.
Suggested citation format: National Survey of Children's Health. NSCH 2011/12. Data query from the Child and Adolescent Health Measurement Initiative, Data Resource Center for Child and Adolescent Health website. Retrieved [mm/dd/yy] from www.childhealthdata.org.