Codes and Frequencies
For sample adults, OJTP reports the time unit (day, week, month, or year) that corresponds with the frequency with which the respondent reported consuming orange or grapefruit juice. OJTP should be used in conjunction with OJNO, which reports the frequency stated by the respondent. For information about the portion size, see OJSIZ.
OJTP 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 persons age 18+ (excluded from CACT supplement).
- 1992: Half of sample persons age 18+ in quarters 1 and 2, and in 2 weeks of quarter 3 (excluded from CACT supplement).
- 1987, 1992
- 1987, 1992 : SAMPWEIGHT