Assessing fat-related dietary behaviors among black women: reliability and validity of a new food habits questionnaire.

摘要

The SisterTalk Food Habits Questionnaire (STFHQ) was evaluated as a tool for assessing dietary fat intakes among black women in the US. Previous tools were adapted for the study's target population. A pilot tool with 168 questions was tested, leading to development of a new tool with 94 questions. In addition, a 4-wk reliability calibration study of the revised STFHQ was conducted in comparison with a food frequency questionnaire (FFQ). Correlations between the STFHQ and the FFQ were investigated, in relation to calculated calories, total fat intakes in g and percentage of calories from fat. 3 scoring methods were used (introductory, product and detail), with exclusion or inclusion of dining out questions and other scoring techniques for food items not consumed. Reliability (correlation) was calculated as 0.87. Inclusion of dining out questions and imputation of zero for food items never consumed were more highly associated with fat intakes than other scoring procedures. Product and detail scores correlated best with percentage of calories from fat, whereas the introductory score correlated most closely with fat intake in g. The detail score showed the greatest responsiveness to the SisterTalk intervention. It is concluded that the STFHQ is a reliable and valid tool for assessment of dietary changes undertaken by black women.