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Covered by Champus/Tricare last year

Codes and Frequencies

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CHAMPUS identifies persons who had health insurance coverage, during the previous calendar year, from the Civilian Health and Medical Program Uniform Service of the Department of Defense. CHAMPUS is a health care benefits program that provides in-patient and out-patient care from civilian sources and Military Treatment Facilities, on a cost sharing basis. In the late 1990s, a managed care approach was phased in, under the name TRICARE. Retired members of the military are eligible for such coverage, as are the dependents of active-duty, retired, and deceased military.

Information on CHAMPUS/TRICARE coverage was collected through an initial question asking about health insurance from several government programs (CHAMPUS, CHAMPVA, VA, Indian Health Service, "other") and a follow-up question about the name of the insurance plan for those who reported such coverage.

Through programming in IPUMS-CPS, other cases were added to the pool of positive responses for CHAMPUS. If the respondent mentioned CHAMPUS coverage when answering a catchall summary question on "other" health insurance plans, after hearing questions about many specific types of insurance coverage (including CHAMPUS), then that person was given a positive response for CHAMPUS in IPUMS-CPS.


User Note: For a set of variables that addresses many of the comparability issues in the CPS health insurance measures, see the summary health insurance variables created by the University of Minnesota's State Health Access Data Assistance Center.

Beginning with the ASEC 2001 survey, the CPS added a verification question (see VERIFY for more information) to ascertain whether respondents who did not acknowledge health insurance coverage of various types in previous questions, actually lacked insurance coverage during the preceding calendar year. Persons who acknowledged health insurance coverage in this verification follow-up question were asked about the types of health insurance coverage they had. In IPUMS-CPS, for the ASEC 2001 survey onward, persons who reported CHAMPUS coverage in response to this question were added, through programming, to the pool of positive responses for the CHAMPUS variable. For consistency in results before and after the ASEC 2001 survey, researchers should exclude cases of CHAMPUS coverage that were only identified via the verification question (i.e., exclude cases coded as "Yes" (2) in VERIFY when analyzing the CHAMPUS data).

For 1996 and 1997 only, persons who reported being covered by CHAMPUS or CHAMPVA during the previous week are identified in CHAMPLW.

Beginning in 2006, this variable includes persons who reported TRICARE, CHAMPUS, or military health care. However, until 2005, persons who reported military health care was included in MILITVA. Thus, the better comparable variable is HICHAMP, which indicates whether the respondent was covered by CHAMPUS(TRICARE), VA, or other military health care.


  • All persons.


Years Jan Feb ASEC Apr May Jun Jul Aug Sep Oct Nov Dec
1996 – 2018 - - X - - - - - - - - -




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