title: The use of telephone interview methodology to obtain 24-hour dietary recalls.
abstract: OBJECTIVE
  To compare 24-hour dietary recalls collected over the telephone to in-person recalls collected in the 1994-1996 Continuing Survey of Food Intakes by Individuals (CSFII).
  
  
  METHODS
  Trained interviewers collected 24-hour dietary recalls over the telephone using the multiple-pass approach. These results were compared to in-person interviews from a pooled subsample of CSFII respondents.
  
  
  METHODS
  List-assisted random-digit dialing was used to identify 700 women between the ages of 20 and 49 years. One eligible woman per household was selected to participate.
  
  
  METHODS
  Approximate t tests to examine differences in average nutrient and energy intakes were conducted on weighted data.
  
  
  RESULTS
  The reported intakes of most nutrients in the current 24-hour dietary recalls collected over the telephone were significantly higher than those reported in the 1994 and 1995 CSFII, but there were no significant differences between the telephone survey and 1996 CSFII results. The 24-hour dietary recalls collected over the telephone yielded consistently greater mean nutrient intake per respondent compared with a comparable pooled subsample from the 1994, 1995, and 1996 CSFII. Generally, no significant differences were found in the food group data between the telephone survey and the CSFII survey. Mean dietary intakes reported by the comparable CSFII subsample increased from 1994 to 1996.
  
  
  CONCLUSIONS
  Collecting 24-hour dietary recalls over the telephone is a practical and valid data collection tool for use in national food consumption surveys.
authors.affiliation: Department of Pediatrics, University of Arkansas for Medical Sciences, Arkansas Children's Hospital Research Institute, Little Rock 72202, USA.
authors.forename: P H
authors.initials: PH
authors.lastname: Casey
authors.forename: S L
authors.initials: SL
authors.lastname: Goolsby
authors.forename: S Y
authors.initials: SY
authors.lastname: Lensing
authors.forename: B P
authors.initials: BP
authors.lastname: Perloff
authors.forename: M L
authors.initials: ML
authors.lastname: Bogle
mesh_terms: D000328:Adult; D004034:Diet Surveys; D002149:Energy Intake; D005260:Female; D006801:Humans; D007407:Interviews as Topic / Q000379:methods*; D008875:Middle Aged; D013689:Telephone