title: Applying Recovery Biomarkers to Calibrate Self-Report Measures of Energy and Protein in the Hispanic Community Health Study/Study of Latinos.
abstract: We investigated measurement error in the self-reported diets of US Hispanics/Latinos, who are prone to obesity and related comorbidities, by background (Central American, Cuban, Dominican, Mexican, Puerto Rican, and South American) in 2010-2012. In 477 participants aged 18-74 years, doubly labeled water and urinary nitrogen were used as objective recovery biomarkers of energy and protein intakes. Self-report was captured from two 24-hour dietary recalls. All measures were repeated in a subsample of 98 individuals. We examined the bias of dietary recalls and their associations with participant characteristics using generalized estimating equations. Energy intake was underestimated by 25.3% (men, 21.8%; women, 27.3%), and protein intake was underestimated by 18.5% (men, 14.7%; women, 20.7%). Protein density was overestimated by 10.7% (men, 11.3%; women, 10.1%). Higher body mass index and Hispanic/Latino background were associated with underestimation of energy (P<0.05). For protein intake, higher body mass index, older age, nonsmoking, Spanish speaking, and Hispanic/Latino background were associated with underestimation (P<0.05). Systematic underreporting of energy and protein intakes and overreporting of protein density were found to vary significantly by Hispanic/Latino background. We developed calibration equations that correct for subject-specific error in reporting that can be used to reduce bias in diet-disease association studies.
authors.forename: Yasmin
authors.initials: Y
authors.lastname: Mossavar-Rahmani
authors.forename: Pamela A
authors.initials: PA
authors.lastname: Shaw
authors.forename: William W
authors.initials: WW
authors.lastname: Wong
authors.forename: Daniela
authors.initials: D
authors.lastname: Sotres-Alvarez
authors.forename: Marc D
authors.initials: MD
authors.lastname: Gellman
authors.forename: Linda
authors.initials: L
authors.lastname: Van Horn
authors.forename: Mark
authors.initials: M
authors.lastname: Stoutenberg
authors.forename: Martha L
authors.initials: ML
authors.lastname: Daviglus
authors.forename: Judith
authors.initials: J
authors.lastname: Wylie-Rosett
authors.forename: Anna Maria
authors.initials: AM
authors.lastname: Siega-Riz
authors.forename: Fang-Shu
authors.initials: FS
authors.lastname: Ou
authors.forename: Ross L
authors.initials: RL
authors.lastname: Prentice
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D015982:Bias; D015415:Biomarkers / Q000652:urine; D004034:Diet Surveys; D004044:Dietary Proteins; D002149:Energy Intake / Q000208:ethnology*; D005260:Female; D005500:Follow-Up Studies; D006630:Hispanic or Latino / Q000208:ethnology; D006801:Humans; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009584:Nitrogen / Q000652:urine*; D057566:Self Report; D014481:United States; D055815:Young Adult
chemical_list: D015415:Biomarkers; D004044:Dietary Proteins; D009584:Nitrogen
keywords: 24-hour dietary recall; Hispanics/Latinos; biological markers; calibration equations; dietary measurement error; nutrition assessment