LIVERNO is a 3-digit-numeric variable.
0: Never or less than 6 times per year
888: 888 (1987: 888+)
996: Not in Universe
998: Unknown-not ascertained
999: Unknown-don't know
For sample adults, LIVERNO reports how many times the person ate liver, including chicken liver in a specified time period. LIVERNO should be used in conjunction with LIVERTP, which reports the corresponding time unit stated by the person. For information about the portion size, see LIVERSIZ.
LIVERNO 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.
- 1987: Half of sample person age 18+ (excluded from CACT).
- 1992: Half of sample person age 18+ in quarters 1 and 2 and 2 weeks of quarter 3 (excluded from CACT).
- 1987, 1992
- 1987, 1992 : SAMPWEIGHT