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Frequency eating liver, past year: Time period

Codes and Frequencies

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For sample adults, LIVERTP reports the time unit (day, week, month, or year) that corresponds with the frequency with which the person reported eating liver, including chicken liver. LIVERTP should be used in conjunction with LIVERNO, which reports the corresponding frequency stated by the person. For information about the portion size, see LIVERSIZ.

LIVERTP is part of a series of variables initiated in 1987 related to food, food knowledge, and cancer. For related variables, please use the IPUMS NHIS search function and drop-down menus.


Changes in survey design (e.g., quarters in which the supplement was collected) may affect raw frequencies, but do not affect comparability of the variable. As always, data users should use the prescribed IHIS weights.


  • 1987: Half of sample persons age 18+ (excluded from CACT supplement).
  • 1992: Half of sample persons age 18+ in quarters 1 and 2 and 2 weeks of quarter 3 (excluded from CACT supplement).


  • 1987, 1992