title: Validation of a short food frequency questionnaire in Australian adults.
abstract: The aim of this article is to report on the validity and internal consistency of a short food frequency questionnaire (FFQ) to measure dietary intake in Australian adults. A total of 407 individuals completed the short FFQ. The Cronbach's alpha of 0.66 indicated acceptable internal consistency for the FFQ. Content validity was measured using factor analysis showed that 35% of total variance was explained by factor analysis. The FFQ was also validated against 31 3-day food records (FR). No significant difference between average intake of energy, most macronutrients, and some micronutrients between two instruments was identified. An acceptable levels of correlation (0.39-0.69) was observed between the two instruments. Bland and Altman's plots showed relative agreement in both instruments with potential bias in measuring iron and iodine. The current FFQ can be an acceptable tool to quickly measuring dietary intake in Australian adults.
authors.affiliation: a Menzies Health Institute Queensland and School of Medicine , Griffith University , Gold Coast, Australia.|b School of Medical and Applied Sciences , Central Queensland University , Rockhampton , Australia.
authors.forename: Saman
authors.initials: S
authors.lastname: Khalesi
authors.affiliation: c Director Medical Services, Roma Hospital , Southwest Hospital and Health Service, Roma, Bond University , Gold Coast , Australia.
authors.forename: Deepak
authors.initials: D
authors.lastname: Doshi
authors.affiliation: d Menzies Health Institute Queensland, Griffith University , Gold Coast, Australia.
authors.forename: Nicholas
authors.initials: N
authors.lastname: Buys
authors.affiliation: a Menzies Health Institute Queensland and School of Medicine , Griffith University , Gold Coast, Australia.
authors.forename: Jing
authors.initials: J
authors.lastname: Sun
mesh_terms: D000328:Adult; D000368:Aged; D001315:Australia; D015982:Bias; D015992:Body Mass Index; D004032:Diet; D015930:Diet Records; D004040:Dietary Carbohydrates / Q000008:administration & dosage; D004041:Dietary Fats / Q000008:administration & dosage; D004044:Dietary Proteins / Q000008:administration & dosage; D005260:Female; D006801:Humans; D008297:Male; D018977:Micronutrients / Q000008:administration & dosage; D008875:Middle Aged; D015596:Nutrition Assessment; D015203:Reproducibility of Results; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires
chemical_list: D004040:Dietary Carbohydrates; D004041:Dietary Fats; D004044:Dietary Proteins; D018977:Micronutrients
keywords: Dietary assessment; blood pressure; food frequency questionnaire; validation