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Survey Items: Survey instrument item number for children 0-5 years: K1-K4; for children 6-11 years:K1-K4; for children 12-17 years: K1-K4 Variable in public use data file: FPL (derived)
Denominator: Children age 0-17 years
Numerator: 0-99% FPL; 100-199% FPL; 200-399% FPL; 400% FPL or more
Revisions and Changes: This measure did not change from the 2017 NSCH, therefore the results may be compared.
Additional Notes: The child’s household poverty level is derived from responses on the survey about family income. The poverty level variable had 16.03% missing values in 2018, which may result in biased estimates. Therefore, the missing values were imputed by the Census Bureau. The impact of missing values on population count estimates is available on the DRC website. The 2018 NSCH topical public use file provided by the Census Bureau contains all 6 imputed FPL (FPL_I1-FPL_I6) variables. A data file and documentation containing all six imputation for the household poverty level variable is available on the United States Census Bureau website: https://census.gov/programs-surveys/nsch.html The poverty level variable povlev4_18 in the DRC 2018 NSCH data set was generated using a single imputation value from the 2018 data file (FPL_I1). Please note that poverty level estimates and confidence intervals based on single imputed income values may differ slightly from those obtained using multiple imputation methods. All six imputed poverty level variables are available in the DRC dataset for users who wish to estimate multiple imputed poverty level.
Treatment of Unknown Values: Missing values may be due to non-response (i.e. a skipped item) or a “don’t know” response. The way these items are handled can vary by measure. For NPMs and NOMs, having missing values for all items in an indicator will lead to the case being given a missing value on the overall measure. For some other measures, if there is a missing value on any of the items, the case will be set to missing. How missing values are handled is documented in the "Additional Notes" field above when required. Missing values are not included in the denominator when calculating prevalence estimates and weighted population counts displayed in the Interactive Data Query results table. In the majority of cases, the proportion of missing values is less than 2%. Exceptions are noted in the form of a Data Alert at the bottom of a results table. The exclusion of these values does not change the prevalence estimates (%) and only marginally affects the weighted population counts (Pop. Est.). To learn about the impact of the missing values on the population count estimates, click here.
History and Development: The Health Resources and Services Administration’s (HRSA) Maternal and Child Health Bureau (MCHB) funds and directs the National Survey of Children’s Health (NSCH), and develops survey content in collaboration with the U.S. Census Bureau and a Technical Expert Panel. The Technical Expert Panel consists of experts in survey methodology and children’s health, federal and state stakeholders, clinicians and researchers. The U.S. Census Bureau conducts the survey, oversees the sampling, and produces a final data set of survey results. Respondents’ cognitive understanding of the survey questions was assessed during the pretest phase of the survey redesign (in 2015) and reassessed after the 2016 survey; subsequent revisions were made. Previously validated questions and scales are used when available. The manuscript “The Design and Implementation of the 2016 National Survey of Children’s Health” provides detailed information about the redesign of the NSCH, administration of the first redesigned survey (2016), and the sampling and administration changes for the 2017 and 2018 NSCH. Prior to 2016, the NSCH and the National Survey of Children with Special Health Care Needs were each conducted three times as interviewer-assisted telephone surveys using random digit dial sampling. In 2016, the two surveys were combined into a single annual self-administered questionnaire. Due to decline in the number of households with landline telephones, the NSCH now utilizes an addressed based sampling method to select participating households, thus all invitations are sent by mail. Participants may choose to complete the survey either online using a secure website or a mailed paper version of the survey. All final data components are verified by the Census Bureau, HRSA/MCHB and CAHMI/DRC staff prior to public release. More information about the survey can be found in the "About the National Survey of Children's Health" section of this website and HRSA's MCHB website.
What is the income level (federal poverty level, FPL) of the household that this child lives in?
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Data Source: National Survey of Children’s Health, Health Resources and Services Administration, Maternal and Child Health Bureau. https://mchb.hrsa.gov/data/national-surveys
Citation: Child and Adolescent Health Measurement Initiative. 2018 National Survey of Children’s Health (NSCH) data query. Data Resource Center for Child and Adolescent Health supported by the U.S. Department of Health and Human Services, Health Resources and Services Administration (HRSA), Maternal and Child Health Bureau (MCHB). Retrieved [mm/dd/yy] from [www.childhealthdata.org].