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Codes and Frequencies

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For sample adults who consumed pizza in the past year, PIZSIZ reports the respondent's average portion size (small, medium, or large) when eating pizza. A medium portion was defined as 2 pieces. Researchers may wish to use PIZSIZ in conjunction with PIZZANO, which reports the frequency with which the respondent ate pizza, and PIZZATP, which reports the corresponding time unit.

PIZSIZ 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.


  • 1992: Half of sample persons age 18+ in quarters 1 and 2 and 2 weeks of quarter 3 (excluded from CACT supplement) who consumed pizza during the past year.


  • 1992