A comparison of the Petra food recording system with the conventional weighed inventory technique

Journal of Human Nutrition and Dietetics - Tập 1 Số 3 - Trang 179-186 - 1988
Margo E. Barker1, P. G. McKenna1, Norma Reid1, JJ Strain1, Kate Thompson1, April Williamson1, Marion E. Wright1
1Centre for Applied Health Studies, University of Ulster, Coleraine, Northern Ireland BT52 1SA

Tóm tắt

This study was designed to test the efficacy of the Portable Electronic Tape Recording Automated (PETRA) scale compared to a digital scale (SOEHNLE) and diary for the collection of dietary data in a large field trial. One hundred and fifty subjects were randomly selected from the Household Valuation List, Northern Ireland, and 102 eligible subjects (aged 16–64 years) were asked to keep a seven‐day dietary record. The cooperating sample (n=80) was divided into cells by sex, age and social class. PETRA and SOEHNLE scales were then randomly allocated to equal numbers of subjects within each cell. Failure to complete the seven‐day record was marginally greater using the SOEHNLE scale but the effect was not statistically significant. Furthermore, there were no statistically significant differences in recorded energy and nutrient intakes between PETRA‐ and SOEHNLE‐subjects within any sex, age or social class grouping. From questionnaire data, the PETRA system was found to surpass the traditional system in terms of ‘user friendliness’; but at an added cost in time spent by the field team.

Từ khóa


Tài liệu tham khảo

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Thông tin
Thông tin xuất bản

Journal of Human Nutrition and Dietetics

Tập 1 Số 3

179-186

Thông tin tác giả