Abstract
We developed a new dietary assessment instrument, the Food Behavior Checklist (FBC), which measures food use related to adopting lower-fat and higher-fiber diets. The FBC is a simplification of the 24-hour diet recall that consists of 19 simple yes/no questions about foods consumed during the previous day. To develop the FBC, an expert committee generated a list of foods based on our intervention program, and we used focus groups and random-digit dialing pretests to refine the format and clarify items. To validate the FBC, we compared responses of 96 women on the FBC to information collected during a professionally administered 24-hour diet recall. For most items, agreement between the FBC and 24-hour recall, based on the kappa statistic, was good to excellent. Agreement was poor for items requiring detailed knowledge about food composition (e.g. high-fiber cereal). There was a trend to over-report general food categories (e.g. luncheon meats) but not specific food items (e.g. ice cream). In an embedded randomized study, we found that a set of introductory items designed to serve as a memory retrieval cue did not improve agreement between the FBC and 24-hour recall. These data provide preliminary evidence supporting the use of short checklist questionnaires on the previous day's food use as a means to assess diet at the group or community level. This relatively inexpensive and rapid measure can be used to inform the design of public health nutrition programs and as an evaluation tool in intervention research.
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Selected References
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