title: Comparing methods for assessing beverage intake among high school students.
abstract: OBJECTIVE
  To compare 7 beverage intake survey questions against criterion data from 24-hour dietary recall interviews (24HrDRIs) among adolescents.
  
  
  METHODS
  Data were available from 610 US high school students completing a survey and ≥3 24HrDRIs. Analyses compared mean intake (times/day) calculated from the survey to intake (servings/day) from the 24HrDRIs. Proportions of students reporting intake of ≥1 times/day were compared to the 24HrDRI results.
  
  
  RESULTS
  Survey data significantly correlated with 24HrDRI data (all corrected r: 0.26-0.49). Survey results differed from 24HrDRI results on reported intake of 5 beverages.
  
  
  CONCLUSIONS
  Intake from these beverage questions should be reported in times/day, which is related to, but not a proxy for, servings/day. These questions are useful for population-level surveillance of beverage intake and monitoring trends over time.
authors.affiliation: Division of Adolescent and School Health, Centers for Disease Control and Prevention, Atlanta, GA, USA. eolsen@cdc.gov.
authors.forename: Emily
authors.initials: E
authors.lastname: O'Malley Olsen
authors.forename: Danice K
authors.initials: DK
authors.lastname: Eaton
authors.forename: Sohyun
authors.initials: S
authors.lastname: Park
authors.forename: Nancy D
authors.initials: ND
authors.lastname: Brener
authors.forename: Heidi M
authors.initials: HM
authors.lastname: Blanck
mesh_terms: D000293:Adolescent; D001628:Beverages / Q000706:statistics & numerical data*; D004034:Diet Surveys / Q000379:methods*; D004327:Drinking Behavior; D002149:Energy Intake; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D012309:Risk-Taking; D013334:Students / Q000706:statistics & numerical data*; D011795:Surveys and Questionnaires