BACKGROUND: Although it is a common practice to estimate dietary intake using three random 24-hour dietary recalls, some studies have suggested up to nine may be necessary to reliably estimate usual intake in youth. Given the resulting increase in resources and participant burden, more research is needed to determine whether this method is reliable, particularly in African-American youth at increased risk for obesity and other chronic diseases. OBJECTIVE: This study estimated the reliability with which 24-hour dietary recalls measure energy, fat, fruit, and vegetable intake in African-American youth and examined how reliability changes as a function of the number of recalls. DESIGN: This study used cross-sectional data collection across three studies. PARTICIPANTS/ SETTING: Participants were African-American youth (n=456, mean±standard deviation age 13.28±1.86 years, 64% were girls, mean±standard deviation body mass index [calculated as kg/m(2)] 31.45±7.94) who completed random 24-hour dietary recalls (67% completed three) conducted by research assistants using the Automated Self-Administered 24-Hour recall system (n=258) or registered dietitian nutritionists using the Nutrition Data System for Research (n=198). MAIN OUTCOME MEASURES/STATISTICAL ANALYSES: Estimates provided by multilevel models were used to calculate the proportion of variance accounted for between individuals and the reliability of means within individuals as a function of the number of recalls. RESULTS: Reliability estimates for assessing dietary outcomes using one to three recalls ranged from 11% to 62%. To achieve 80% reliability, the following number of recalls would need to be conducted: 8 for energy intake, 13 for fat intake, 21 to 32 for fruit intake, and 21 to 25 for vegetable intake. CONCLUSIONS: The common practice of assessing dietary intake with three recalls does so with low reliability in African-American youth. Until more objective methods for reliably estimating usual intake are developed, researchers who choose to use 24-hour dietary recalls are encouraged to include estimates of the measure's reliability in a priori power calculations for improved decision making regarding the number of observations and/or sample size.
BACKGROUND: Although it is a common practice to estimate dietary intake using three random 24-hour dietary recalls, some studies have suggested up to nine may be necessary to reliably estimate usual intake in youth. Given the resulting increase in resources and participant burden, more research is needed to determine whether this method is reliable, particularly in African-American youth at increased risk for obesity and other chronic diseases. OBJECTIVE: This study estimated the reliability with which 24-hour dietary recalls measure energy, fat, fruit, and vegetable intake in African-American youth and examined how reliability changes as a function of the number of recalls. DESIGN: This study used cross-sectional data collection across three studies. PARTICIPANTS/ SETTING:Participants were African-American youth (n=456, mean±standard deviation age 13.28±1.86 years, 64% were girls, mean±standard deviation body mass index [calculated as kg/m(2)] 31.45±7.94) who completed random 24-hour dietary recalls (67% completed three) conducted by research assistants using the Automated Self-Administered 24-Hour recall system (n=258) or registered dietitian nutritionists using the Nutrition Data System for Research (n=198). MAIN OUTCOME MEASURES/STATISTICAL ANALYSES: Estimates provided by multilevel models were used to calculate the proportion of variance accounted for between individuals and the reliability of means within individuals as a function of the number of recalls. RESULTS: Reliability estimates for assessing dietary outcomes using one to three recalls ranged from 11% to 62%. To achieve 80% reliability, the following number of recalls would need to be conducted: 8 for energy intake, 13 for fat intake, 21 to 32 for fruit intake, and 21 to 25 for vegetable intake. CONCLUSIONS: The common practice of assessing dietary intake with three recalls does so with low reliability in African-American youth. Until more objective methods for reliably estimating usual intake are developed, researchers who choose to use 24-hour dietary recalls are encouraged to include estimates of the measure's reliability in a priori power calculations for improved decision making regarding the number of observations and/or sample size.
Authors: Dawn K Wilson; Heather Kitzman-Ulrich; Ken Resnicow; M Lee Van Horn; Sara M St George; E Rebekah Siceloff; Kassandra A Alia; Tyler McDaniel; VaShawn Heatley; Lauren Huffman; Sandra Coulon; Ron Prinz Journal: Contemp Clin Trials Date: 2015-03-30 Impact factor: 2.226
Authors: Ramón Estruch; Emilio Ros; Jordi Salas-Salvadó; Maria-Isabel Covas; Dolores Corella; Fernando Arós; Enrique Gómez-Gracia; Valentina Ruiz-Gutiérrez; Miquel Fiol; José Lapetra; Rosa Maria Lamuela-Raventos; Lluís Serra-Majem; Xavier Pintó; Josep Basora; Miguel Angel Muñoz; José V Sorlí; José Alfredo Martínez; Miguel Angel Martínez-González Journal: N Engl J Med Date: 2013-02-25 Impact factor: 91.245
Authors: Suzanne D Baxter; David B Hitchcock; Caroline H Guinn; Julie A Royer; Dawn K Wilson; Russell R Pate; Kerry L McIver; Marsha Dowda Journal: J Nutr Educ Behav Date: 2013-04-03 Impact factor: 3.045
Authors: Dawn K Wilson; Allison M Sweeney; M Lee Van Horn; Heather Kitzman; Lauren H Law; Haylee Loncar; Colby Kipp; Asia Brown; Mary Quattlebaum; Tyler McDaniel; Sara M St George; Ron Prinz; Ken Resnicow Journal: Ann Behav Med Date: 2022-10-03
Authors: Jason F Deen; Alexandra K Adams; Amanda Fretts; Stacey Jolly; Ana Navas-Acien; Richard B Devereux; Dedra Buchwald; Barbara V Howard Journal: J Am Heart Assoc Date: 2017-10-24 Impact factor: 5.501
Authors: Yatiman Noor Hafizah; Lee Choo Ang; Fendy Yap; Wan Nurul Najwa; Whye Lian Cheah; Abd Talib Ruzita; Farra Aidah Jumuddin; Denise Koh; Julia Ai Cheng Lee; Cecilia A Essau; Sue Reeves; Carolyn Summerbell; Edward Leigh Gibson; Bee Koon Poh Journal: Int J Environ Res Public Health Date: 2019-11-27 Impact factor: 3.390
Authors: Morgan Clennin; Asia Brown; Min Lian; Marsha Dowda; Natalie Colabianchi; Russell R Pate Journal: Int J Environ Res Public Health Date: 2020-09-03 Impact factor: 3.390