Codes and Frequencies
Description
For sample adults 18 and over, PIZZATP reports the time unit (day, week, month, or year) that corresponds with the frequency with which the respondent reported eating pizza. PIZZATP should be used in conjunction with PIZZANO, which reports the corresponding frequency stated by the respondent. For information about the portion size, see PIZSIZ.
PIZZATP is part of a series of variables initiated in 1987 related to food, food knowledge, and cancer.
Comparability
Beginning in 2010, PIZZANO, explicitly included frozen, fast food, or homemade pizza. Prior to 2010, respondents were not given instructions about what types of pizza to include.
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 IPUMS NHIS weights.
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
- 1992: Half of sample children 18+ in quarters 1 and 2 and 2 weeks in quarter 3 (excluded from CACT supplement).
- 2010; 2015: Sample adults age 18+.
- 2022: Sample adults age 18+ who are pizza in past month (PIZZANO).
Availability
- 1992, 2010, 2015, 2022
Weights
- 1992, 2010, 2015, 2022 : SAMPWEIGHT
