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Development and testing of the FRESH Foods Survey to assess food pantry clients’ dietary behaviours and correlates

Abstract

Objective

To use cognitive interviewing and pilot testing to develop a survey instrument feasible for administering in the food pantry setting to assess daily intake frequency from several major food groups and dietary correlates (e.g. fruit and vegetable barriers) - the FRESH Foods Survey.

Design

New and existing survey items were adapted and refined following cognitive interviews. After piloting the survey with food pantry users in the USA, preliminary psychometric and construct validity analyses were performed.

Setting

Three US food banks and accompanying food pantries in Atlanta, GA, San Diego, CA, and Buffalo, NY.

Participants

Food pantry clients (n 246), mostly female (68 %), mean age 54·5 (sd 14·7) years.

Results

Measures of dietary correlates performed well psychometrically: Cronbach's α range 0·71-0·90, slope (α) parameter range 1·26-6·36, and threshold parameters (β) indicated variability in the 'difficulty' of the items. Additionally, all scales had only one eigenvalue above 1·0 (range 2·07-4·71), indicating unidimensionality. Average (median, Q1-Q3) daily intakes (times/d) across six dietary groups were: fruits and vegetables (2·87, 1·87-4·58); junk foods (1·16, 0·58-2·16); fast foods and similar entrées (1·45, 0·58-2·03); whole-grain foods (0·87, 0·58-1·71); sugar-sweetened beverages (0·58, 0·29-1·29); milk and milk alternatives (0·71, 0·29-1·29). Significant correlations between dietary groups and dietary correlates were largely in the directions expected based on the literature, giving initial indication of convergent and discriminant validity.

Conclusions

The FRESH Foods Survey is efficient, tailored to food pantry populations, can be used to monitor dietary behaviours and may be useful to measure intervention impact.

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