title: Comparability of a short food frequency questionnaire to assess diet quality: the DISCOVER study.
abstract: This study aims to assess comparability of a short food frequency questionnaire (SFFQ) used in the Determinants of Suicide: Conventional and Emergent Risk Study (DISCOVER Study) with a validated comprehensive FFQ (CFFQ). A total of 127 individuals completed SFFQ and CFFQ. Healthy eating was measured using Healthy Eating Score (HES). Estimated food intake and healthy eating assessed by SFFQ was compared with the CFFQ. For most food groups and HES, the highest Spearman's rank correlation coefficients between the two FFQs were r > .60. For macro-nutrients, the correlations exceeded 0.4. Cross-classification of quantile analysis showed that participants were classified between 46% and 81% into the exact same quantiles, while 10% or less were misclassified into opposite quantiles. The Bland-Altman plots showed an acceptable level of agreement between the two dietary measurement methods. The SFFQ can be used for Canadian with psychiatric disorders to rank them based on their dietary intake.
authors.affiliation: a Population Health Research Institute, Department of Medicine, McMaster University , Hamilton , ON , Canada.
authors.forename: Mahshid
authors.initials: M
authors.lastname: Dehghan
authors.affiliation: a Population Health Research Institute, Department of Medicine, McMaster University , Hamilton , ON , Canada.
authors.forename: Yipeng
authors.initials: Y
authors.lastname: Ge
authors.affiliation: a Population Health Research Institute, Department of Medicine, McMaster University , Hamilton , ON , Canada.
authors.forename: Wala
authors.initials: W
authors.lastname: El Sheikh
authors.affiliation: b Population Genomics Program, Chanchlani Research Centre, Department of Medicine, McMaster University , Hamilton , ON , Canada.
authors.forename: Monica
authors.initials: M
authors.lastname: Bawor
authors.affiliation: a Population Health Research Institute, Department of Medicine, McMaster University , Hamilton , ON , Canada.
authors.forename: Sumathy
authors.initials: S
authors.lastname: Rangarajan
authors.affiliation: c Population Genomics Program, Chanchlani Research Centre, McMaster University , Hamilton , ON , Canada.
authors.forename: Brittany
authors.initials: B
authors.lastname: Dennis
authors.affiliation: d St. Joseph's Healthcare Hamilton , Hamilton , ON , Canada.
authors.forename: Judith
authors.initials: J
authors.lastname: Vair
authors.affiliation: d St. Joseph's Healthcare Hamilton , Hamilton , ON , Canada.
authors.forename: Heather
authors.initials: H
authors.lastname: Sholer
authors.affiliation: d St. Joseph's Healthcare Hamilton , Hamilton , ON , Canada.
authors.forename: Nichole
authors.initials: N
authors.lastname: Hutchinson
authors.affiliation: d St. Joseph's Healthcare Hamilton , Hamilton , ON , Canada.
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Iordan
authors.affiliation: a Population Health Research Institute, Department of Medicine, McMaster University , Hamilton , ON , Canada.
authors.forename: Pam
authors.initials: P
authors.lastname: Mackie
authors.affiliation: e Department of Psychiatry and Behavioural Neurosciences , McMaster University , Hamilton , ON , Canada.
authors.forename: Zainab
authors.initials: Z
authors.lastname: Samaan
mesh_terms: D000328:Adult; D015992:Body Mass Index; D002170:Canada; D004032:Diet; D015930:Diet Records; D005260:Female; D063427:Food Quality; D006801:Humans; D008297:Male; D008875:Middle Aged; D015596:Nutrition Assessment; D015203:Reproducibility of Results; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires
keywords: Food frequency questionnaire; comparability study; dietary pattern; psychiatric disorders