Codes and Frequencies
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Description
For sample adults and sample children who have at least two private insurance plans, HIP2CAID indicates the person's second plan was paid for by Medicaid. Prior to 2019, this variable is available for all persons who have a private insurance plan.
Private insurance companies are allowed to administer portions of Medicaid benefits through Medicaid managed care arrangements in which health maintenance organizations contract directly with a state Medicaid agency to provide services on a capitated basis (fixed fee per enrollee). These managed care plans then enroll and provide services for Medicaid beneficiaries. For example the Centers for Medicare and Medicaid Services (CMS) provided a listing of insurance plans contracting with Medicaid in each state in a 2009 report entitled, "2009 National Summary of State Medicaid Managed Care Programs."
For all years HIP2CAID is available the definition of private insurance coverage remained relatively consistent and excluded single service plans or plans which paid only for accidents. However, the definition, order, and wording of private health insurance changed over time. Users are strongly encouraged to review the user note Private Insurance Definitions.
Related Variables[show more]
Information was collected on up to four plans per family until 2019; for 2004-2018, only data on the first and second plan are publicly available. Uses may also want to see the variables HIP1CAID, HIP3CAID, and HIP4CAID.
Persons with three or more plans have a "yes" response to the HIPRIVGT2 variable (available for 2004-2018). A very small number of persons have more than two private insurance plans. Additional information for the third and fourth plans for a person is available through a Data Research Center. Beginning in 2019, information is only collected on up to two private plans.
IPUMS NHIS has also created the variable HIPCAIDR, which indicates if the respondent had any private plan paid for by Medicaid.
Data Editing and Recoding[show more]
HIP2CAID reflects responses that have been edited by the NCHS based on plan name. Only respondents verified to have private insurance are included in the universe for HIP2CAID. A full description of the editing process and changes in definition is provided under the variable descriptions for private insurance in HIPRIVATEE; a brief description is provided below.
During the course of data editing, the NCHS discovered errors in the responses to questions about insurance coverage. This might be shown, for example, by a mismatch between the verbatim name of an insurance plan and the type of insurance coverage the person selected from the categories on the card. The NCHS created a series of recoded insurance variables, which are edited to correct for mistakenly reported insurance information. The NCHS strongly advises analysts to use these recoded insurance variables as a more reliable source of information about the types of insurance coverage than is provided by respondents' original and unedited answers about their insurance type. See HIPRIVATEE for a list of the recoded health insurance variables.
Comparability
This variable is mostly comparable over time. As new forms of plan payment and public insurance programs became available, slight changes were made to the response categories. For all years, the categories of self or family (living in the household), employer or union, someone outside the household, Medicare, and Medicaid were available. For 1999-2018, respondents could report the category Children's Health Insurance Program. From 1998-2018, the category "state or local government or community program" was used in place of the 1997 category of "government program." Beginning in 2019, the "state or local government or community program" category was changed to "Other government program."
Information was collected on up to four plans per family until 2019; for 2004-2018, only data for plans one and two are publicly available. However, this reduction in the number of plans publicly available does not greatly reduce comparability as very few individuals have more than two private insurance plans. Persons with more than two plans have a "yes" response to the HIPRIVGT2 variable (available for 2004-2018).
The NHIS questionnaire was substantially redesigned in 2019 to introduce a different data collection structure and new content. For more information on changes in terminology, universes, and data collection methods beginning in 2019, please see the user note.
Universe
- 1997-2018: Persons with at least 2 private health insurance plans.
- 2019-2023: Sample adults age 18+ and sample children age 0-17 with at least 2 private health insurance plans.
Availability
- 1997-2023
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Weights
- 1997-2018 : PERWEIGHT
- 2019-2023 : SAMPWEIGHT