REPRODUCIBILITY OF A DESIGNED SEMI-QUATITATIVE FOOD FREQUENCY QUESTIONAIRE IN GENERAL POPULATIONS IN THE NORTH VIETNAM

Ngoan Le Tran

Abstract


Objectives: To examine a reproducibility of a semi-quantitative food
frequency questionnaire (SQFFQ) in general populations in the North
Viet Nam in 2017. Methods: A Cross-sectional survey using methods
of 24-hour recall records of food intake (24-FR, the reference group) in
300 households of three commune general populations that have 1,334
persons. SQFFQ was tested for 600 participants which found 310 participants eligible in linking with persons of 300 households. The R2, which
was used to compare the energy and estimated nutrients obtained by
both methods, was calculated before and after adjustment for total energy intake, age and sex, performed in STATA 10. Results: For macro nutrients intake estimated by two methods of 24-FR and SQFFQ, the

intake amounts consisted of energy (kcalo, 1934.5 versus 1901.4); protid
(gram, 87.8 versus 81.4); lipid (gram, 43.5 versus 41.7); and glucid (gram,
295.5 versus 294.5). there is a small correlation for lipid (adjusted R2=
0.20); a moderate correlation for protid (adjusted R2= 0.38) and glucid (adjusted R2= 0.36), a strong correlation for energy (adjusted R2=
0.53). Conclusions: The designed SQFFQ was being validated having
good characteristics of feasibility, practical and reliability in the general
populations located in the North Viet Nam


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